Power Supply Making Grinding Noise

It's important to recognize where the noise is coming from so that you can understand what needs to be looked at. Note: Working on TV can be difficult due to the high voltage circuits inside. I'm watching TV and all of a sudden the APC unit will make this constant, loud, high-pitched noise. My computer's making a strange, loud noise at startup! The last few days whenever I start up my computer after it's been shut down or in hibernate, it will make this weird, loud vibrating noise in the back. User had a system with a 13 gig drive. To resolve this issue, follow the instructions below. I recently checked the bearing on the drive and its worn down. Those are the only two components that can make a noise. Attention: Abnormal noise is one of methods to check/confirm the status of Hard disk but it doesn't mean its failure. Free Speed:16500 rpm. Most flares are made by hand or power tools that swage the tube end over a split die. Other then the noise it seems to be working fine because it is supplying power. Why Does The Washing Machine Make Noise and How to Fix it. I presume it's a component inside the box that's. There were several complaints about the fan making a "grinding noise" and some buzzing as well but this issue seems to have been severely reduced with the V2 PSU. This happens most often when they are not connected to a device or otherwise in use, and stop making noise when I connect a load to it such as by plugging in a device that is not fully charged. Power Supply Hurdles 2018-09-01 16:29 - Making My last post was about a successful step in a long delayed project. Power supply's were not made to have parts replaced. You cannot use the Life Fitness 9500HR elliptical without a power supply or without a properly working display. The new PSU is a newer model. Then remove the fan. Since the buzzing sound starts when you plug the set in, the power supply would be my first choice of what is causing it. The original Xbox One comes with an external fan-assisted power supply that measures 6. K-Tech Enterprises is technocrats promoted jewellery making machineries manufacturer. Process Scale Up. This noise? Is it coming thru the speakers? A kind of warning signal maybe like some beeps? Or is it a squeeling or grinding noise that seems to be mechanical? Like a bad fan bearing for ex. Each increase of 1 m/s raises the noise level by a factor of about 4, and it's generally agreed that a water speed above about 3 metres per second makes cavitation noise unacceptably loud. 3) Do not use any metal or abrasive materials to clean the device. This is a common cause of computer tower noise as the components of the fan struggle to keep it turning. In this article, we take a look at the most common. Does anyone know why this is happening? Thanks. Well it could be from the power source as others have said but it still could be a fan or the HD or capacitors within the DVR. This is a heavy duty single-channel, constant-voltage and constant-current power supply with low ripple and noise. The high voltages in the supplies can and will kill you if tampered with carelessly. If your tool starts making this noise, first make sure that it is properly lubricated. If you suspect that your power supply is dying, replace it. If the noise is from the power supply fan, it is easier and safer to replace the whole power supply. My 2000 Toyota 4Runner, the electric antenna is making a grinding noise. Disc drive makes grinding sound. Using a higher-quality transformer would add to the cost of the power supply. I listen carefully to where the noise is coming from, it's coming from the power supply area. Sound or a sound that is loud, unpleasant, unexpected, or undesired. I removed the stater motor to expose the rear bearing and drum shaft. I replaced the blower from another msi netbook but not with same model. Happen in "transition" time. Pool Pump Grinding, Screeching and Screaming. The output voltage noise plot of the 5-Ampere circuit is shown in Figure 5b. Water- turn off at stop valve under stairs, still hear it. I just got done replacing the fan on my wife's video card and upon starting it up, heard the fan in the power supply making a slight grinding noise. We can help provide the electrical products, electrical supplies and advice to get the job done right. (Pain) I can't seem to come up with anything, but I thought I'd ask this great pool of professionals. In the actual production activities, the noise of grinding mill has not been resolved now. The best thing to do is to REPLACE the power supply unit with a new one. Apr 02, 2009 · Chris Myers asks why his PC makes a grinding sound on boot up. Don't use a power supply built for a region whose power requirements differ from where you are. Not only does one need to consider all the usual parameters in a power management design, like input voltage, output voltage, and current, but also how to handle power supply noise to eliminate effects on the system's video and audio signal integrity. The Question. Power cycle the system. Make sure that the power supply is positioned horizontally and lays flat on the four rubber pads on its base. The engine needs a thrust from the flywheel for being cranked up. Floppy drive makes noise. My guess is lowered the angle is putting little more load on the power supply allowing you to hear it where as level the stress is less. It sounds a bit like the HDD whirring. Electric Power Generation. in his Logic Noise series. It sounds like a bad bearing. Benefits of the new laboratory rob/ball mill design we have for sale over the previous mill:Grinding drum moves much more stable machine because of the two bearings Less noise/sound because of the complete sound enclosure with a possible sound reduction foam on the inside Indication light to show the machine is running Easy …. If the machine still makes noise, replace the toner with a new Brother TN620 or TN650 toner following the instructions below: a. Maize Grinding Hammer Mill, Corn Flour Mill, Flour Milling Machine manufacturer / supplier in China, offering Corn Grinder Maize Flour Making Machine, Factory Price Maize Wheat Corn Flour Mill Posho Mill, Kenya Running Maize Corn Flour Meal Grits Making Machine Maize Mill Machine and so on. See my last post. My HDX 995 was making very loud grinding noises. How is computer noise created? Hum - this is usually generated by the computer's power supply and it's often amplified by the computer case. The best thing to do is to REPLACE the power supply unit with a new one. You should not use hearing protection as an alternative to controlling noise by technical and organisational means. This fluid is the cheapest part of your power-steering system and changing it/keeping it topped off can help extend the life of the much pricier power-steering pump and rack, says CarTalk. Bring a supercharger or turbocharger into the engine mechanism and see how it adds to the torque and horsepower. Thanks everyone, so it's the power supply fan that's making the noise. 3 Machine makes noise and feels rough when the hand cranks are make grinding noise, operate roughly, and/or. My LG washing machine is making a loud noise when the drum spins, what could be the issue? My LG washing machine is making a loud noise when the drum spins, what could be the issue? Potential Cause The drum within your machine rotates 360 degree while the agitator inside lifts and drops clothes for a complete washing. First is was making grinding noise. Pool Pump Grinding, Screeching and Screaming. thus generating needless noise and using extra power. After restarting the PC a couple times, the power supply just died completely and had to be replaced. I have been to. I don't know if this is a smart thing to do or not, but after I hit (lightly) the back of the computer a few times, it will go away. So practically I don't get a quiet mode of operation from the card but instead get to hear periodic grinding noise, which is quite irritating. I found also that if the fan not working properly, it makes the unit sloow because of overheating. Note: Working on TV can be difficult due to the high voltage circuits inside. Corsair CP-9020097-UK VS Series ATX/EPS 80 PLUS Power Supply Unit, 550 W value for money good power grinding noise good value stopped of noise this supply. At times even if the recliner is having a power supply, there might be issues when the motor is non-functional. Why does my computer make a grinding noise when - Ask Leo! Askleo. The problem here is that control equipment often shares a common DC ground that. It is normal for a hard drive to produce noise. Power supply's were not made to have parts replaced. Most people live with it unless it really bothers, then they replace the PSU. Could it be lacking power?. The stainless steel cabinets come with noise-insulated walls to reduce the noise emissions outside of the cabinet. Power Supply Unit Making Noises - posted in Internal Hardware: I am not sure what coincides with what but I will give a full description of what has been happening in hopes I can replace simple. maybe you can tell better if it is a faulty fan/bearing making the noise. The laptop turns on and everything works fine, except it makes some constant weird grinding or rattling noise. Alternator whine is the granddaddy of car. 96 inches (about 17 x 4. For Xbox One on the Xbox One, a GameFAQs message board topic titled "Is the power brick suppose to be making noise". If you’re not exactly mechanically inclined, the only sure-fire way to find out why your car is making a horrible noise is to take it to a mechanic for a diagnostic. The water supply line shifts intermittently as the water valve opens and closes, and can strike the wall or back of the refrigerator, causing a thumping or vibrating sound. Resume making your offer, 100/150mm Diamond Grinding Disc Wheel Glass For Grinding and Polishing Jewelry. Technician's Assistant: What OS X (Operating System, e. • Noisy power supply or power-amp ground currents may find an alternative return path via the loop (see section 15. The battery is the source that supplies power for all these components. It does it most during startup, just after Windows loads. - Cutting speed is variably adjustable to suit applications and workpiece materials. by Jiesu | January 11, 2009 5:29 PM PST Sometimes my 4 month computer's power supply fan makes a whirring, humming sound after I turn it on. Depending of the severity of damage. Grinding sound when computer is booting. There is a fan in the power supply unit that usually wears out with its grease and lubrication. When I'm idle, the rpm speed is constantly changing between 2 speeds every 10 seconds. This noise? Is it coming thru the speakers? A kind of warning signal maybe like some beeps? Or is it a squeeling or grinding noise that seems to be mechanical? Like a bad fan bearing for ex. The noise was actually coming from the Power supply yet not the fan in the power supply. Popping is often associated with the time when you flip the standby switch. Upon inspection, I found that it is a 120mm x 25mm, 12V, 0. Solved: Hi, I have an HP Pavilion G7, and it's been having fan issues for a few months now. The chips, packages and printed circuit board all contribute to power supply noise, so the complete system must be optimized to limit noise across the voltage and ground. And if you. Our talented experts have manufactured these grinders by the use of high grade raw material and latest electronic technologies. Voltage information for you unit can be found in the Assembly section of your owner's manual under Parts Included. Do NOT try to open the power supply to remove or replace the fan. its been a week now that my PS4 making weird noises. ultimatley it is a fan. It will be easier to tell if its the processor fan by having the case open. The power supply is a FX ProSeries Core Edition 650W. DS 200 (619200000) Bench Grinder from Metabo - High-quality, reliable and durable. I took it home and as soon as the power cord was pulged in it started making the noise again. Other then the noise it seems to be working fine because it is supplying power. If one is used for a home theater system, the noise suppression rating listed in the technical specifications of the device will be very important. Disconnect the water supply hose from the valve connector under the tank and loosen the. Filament Power Supply and Common Noise. When the fans spin at a higher and more constant rate, the noise disappears but I’m almost sure I picked it up at some higher rate as well. Since the gas burner must be shut off during draining, follow these initial steps (depending upon the water heater's technology). Does your power brick on your xbox sound like it's about to take flight? well mine did, so this is how i fixed it. The moringa grinding machine can grind leaf and seeds with high efficiency and perfect crushing effect. I listen carefully to where the noise is coming from, it’s coming from the power supply area. Due to safety concerns with power supplies, don't open the power supply and replace only the fan; the entire power supply should be replaced instead. The only real risk is that the fan dies altogether, which can then cause the power supply (or more) to overheat and fail. If you get a light, then you probably have a short in the track or wires. All has been fine until the last week or two, when it will sometimes make grinding noises and the turntable will stop turning. After backlash, the second biggest source of frustration seems to be electrical noise problems on home brew CNC systems. My fuse box is making a buzzing or humming noise! If your fuse box has started buzzing, humming or making any other noises, you need to get a Part P electrician to take a look at it. A year later, the noise returned and I ordered a replacement fan and installed it myself. 11 Specific requirements resulting from failure of the power supply hazards Grinding machine with power operated. The grinding apparatus has a grinding machine, bit holding means and a support system. Using a higher-quality transformer would add to the cost of the power supply. noise of grinding mill My Dream School. We can help provide the electrical products, electrical supplies and advice to get the job done right. - If the noise can be heard, go to STEP 9. ODM Solutions Community. Xbox power supplies should be used only in the regions where they’re sold new. Sometimes, this brake noise could indicate that a small rock or a bit of debris has gotten inside the brakes, and the obstruction simply needs to be removed. It actually works by pushing the exhaust gases out faster, making more room for air and fuel. The fan is not grinding. Is this the sign of impending hardware failure ? Is there a way to check power supply health by software, the way you do with hard disks ? [Edit, Nov. The correct power tool will do the job better and safer at the rate for which it was designed. The power supply Part number is 996500044559 and coat about $140. Resume making your offer, 100/150mm Diamond Grinding Disc Wheel Glass For Grinding and Polishing Jewelry. Features: 100% Brand new. 29-Aug-2019-PM Best Dewalt Miter Saw Making Grinding Noise Lifetime Access Free Download PDF Get all the Woodworking Plans Free Download PDF. So he decided to change old the fan with a new quite one and he helped in the making of this video. The eccentric regulating wheel to adjust the verticality of the belt. So recently my laptop seems to be making a low grinding noise. 3 Machine makes noise and feels rough when the hand cranks are make grinding noise, operate roughly, and/or. It is highly efficient in performance and can work in very low power supply. UNPLUG the power supply from the wall and your xbox FIRST!!!!!!!. Other times, a grinding noise can be heard when your brake pads have worn out completely, causing the steel backing of the worn-out pad to grind against the brake rotor. Verify the power supply and make sure that the adapter is the correct voltage. It seems my fan is making this whirring noise, but it doesn't sound like it's physically grinding on anything, but something sounds off, some described it as simply a cheap fan making noise, but I am not sureI know MS support is usually. The power supply is easy to replace, so replace it early before it quits entirely. The safe answer is don't. Visit our Online or In-Store Superstore. · The power supply cables are complete with terminals. A bad PSU isn't something a computer can live with for very long. Anthem suffers from an identity crisis, torn between its efforts to be a cooperative shooter and a single-player story. b) Do not use the power tool if the switch does not turn it on and off. when testing the z axis during machine set up. Our power generator hire fleet is sourced from two of Eur. If it's like a loud ticking sound? Then, it could be that the vga fan is hitting something inside the cooler. Would the power supply fan be the fan that would make immediate noise upon startup of a PC? That is when something is making the most noise/grinding. I located the sound and I am fairly certain it is the power supply fan (it is the fan at the back inside a metal box). For Xbox One on the Xbox One, a GameFAQs message board topic titled "Is the power brick suppose to be making noise". There are two types of moving parts in a pc that are capable of making a " grinding noise. DS 200 (619200000) Bench Grinder from Metabo - High-quality, reliable and durable. Hello! Payment methods. This is produced when water drips on defrost heaters. The best thing to do is to REPLACE the power supply unit with a new one. 7 Speed power supply with US plug. Hi just got a cx650m like a week ago and today it started making a grinding noise so I switched it off and it hasnt happened since for like over an hour what should I do?. To troubleshoot excessive fan noise: Ensure that the DVR / NVR is on a flat, stable surface. The grinding noise is probably from the power supply. My PS4 console makes some noise when starting up, but is otherwise pretty quiet. b) Do not use the power tool if the switch does not turn it on and off. Listen to these noises carefully and you should be able to identify the cause. There are a lot of parts in your washer that is responsible for grinding, rattling, humming, banging, and whining noise. The computer ran fine at the store. A hissing, sizzling, buzzing, or arching noise may be heard on self-defrost models. I took it home and as soon as the power cord was pulged in it started making the noise again. That's why Ryobi is the DIY brand of choice for millions of homeowners, gardeners, hobbyists and auto-enthusiasts. If the growling sound has a rough, tinny edge -- like a grinding or squealing noise -- when your dishwasher runs, this indicates a lack of sufficient water. How to test Noise from the Output of Power Supply. According to accumulation and experimental analyses of on-site test data for more than thirty years, SBM, a Chinese grinding mill manufacturer, has researched and developed the fifth-generation pendulous hanging grinding mill – MB5X grinding mill. Lots of things can go wrong and cause a power supply failure. I hope this lasts until I can get a replacement!. The power supply is a FX ProSeries Core Edition 650W. It also has automatic LED light making it safer to use. Each time a shut down and unplug/replug of the power brick resolved it. If the sound coming from the area around your drive has recently changed or is an excessive grinding or clanking noise, this may indicate a physical problem with the drive, whether internal or external. This KitchenAid 1/2 HP food waste disposer is great for use in a variety of kitchens. But then it comes back again after 5-10 minutes. See if it makes the grinding noise when you plug it into the wall and it turns on. I know nothing about fans, but do know I cannot find a BTek (what it is) anywhere online, except used on Ebay. then it just locked up on white screen with apple sign now it shuts down before finishing. maybe you can tell better if it is a faulty fan/bearing making the noise. User had a system with a 13 gig drive. Kubota Mower Deck Making Noise If there is a pto shaft connecting it I would check the universal joints on it. Auctionsouthwest. How do differential amplifiers reject noise coming from. as if the fan is grinding. - If the noise can be heard, go to STEP 8. We even stock flashlights and portable lighting to help you prepare for or get through emergency situations. You can replace the power supply if you're concerned about it. Popping is often associated with the time when you flip the standby switch. ODM Solutions Community. Our talented experts have manufactured these grinders by the use of high grade raw material and latest electronic technologies. The power supply on my unit has begun making grinding noises for 30 seconds to a minute before finally coming on. Powersupply has a fan. If the grinding noise is constant, all of the minor items can be quickly eliminated by shutting down the computer and disconnecting the power to each item (one at a time) then restarting your system. The blade of the fan is wiggled and touching at the casing on it that makes a grinding noise. But the size and mounting of the blower is the same. If the grinding noise is constant, all of the minor items can be quickly eliminated by shutting down the computer and disconnecting the power to each item (one at a time) then restarting your system. 10 Trello power-ups for maximum productivity; One of [our] machines suffers from the same disc drive problem many have reported. 3" mini angle grinder set with 10 pcs grinding wheels are packed in an easy to carry tool box. Extension Cord – An electric cord used between power tools and outlets to extend the range of the tools. If you’re not exactly mechanically inclined, the only sure-fire way to find out why your car is making a horrible noise is to take it to a mechanic for a diagnostic. Humming From Your Outdoor Unit. I stopped it and no noise occured, once I realesed it, the fan spun and it started making that loud grinding noise. If belt would look at the puller/spindle it connects to. After backlash, the second biggest source of frustration seems to be electrical noise problems on home brew CNC systems. It is unlikely that the power supply fan was the problem; if that were the cause, safety cutouts would mean you would see no light at the front of the case. noise of grinding mill My Dream School. Preethi is a famous Indian brand with many happy consumers. It'll start making a grinding noise, and sometimes go - 5139751. someitmes it does this, sometimes it doesn't. Pool Pump Grinding, Screeching and Screaming. No matter what it shouldn't be making enough noise to bother you. Here's the scoop. power supply. grinding vehicle. - If the noise can be heard, go to STEP 8. If the grinding noise is constant, all of the minor items can be quickly eliminated by shutting down the computer and disconnecting the power to each item (one at a time) then restarting your system. Noise Control has been engineering and manufacturing vibration isolation and noise control products and systems for over 56 years. NEVER CLEAR FOREIGN OBJECTS FROM THE BEANS CONVEYOR OR BEANS HOPPER WHEN THE GRINDER IS PLUGGED INTO A POWER SOCKET. On some units, a power supply can emit a squealing noise also. SOLUTION: Batteries need to be changed every 6 months ( a good idea is to do this when you change your smoke detector batteries), or after every time they are activated due to a power failure. This will not be tinker toy technology. if i disconnect the 24 pic (from the motherboard) and everything else then the psu should only be connect via the plug into the wall socket and nothing else right?.   I cannot afford a cross ship RMA but cannot afford to be without a computer either  Should I deal with the noise or co. If your pool pump motor is making a loud grinding noise or is even starting to make a large high pitched scream, then chances are the ball bearings inside of the motor are starting to go bad. Free Speed:16500 rpm. I stopped it and no noise occured, once I realesed it, the fan spun and it started making that loud grinding noise. Our talented experts have manufactured these grinders by the use of high grade raw material and latest electronic technologies. Yes, this is definitely sounding like an issue with the Power Supply on the Envy 7640, especially if the sound is coming. So recently my laptop seems to be making a low grinding noise. Electric Power Generation. On another forum I saw something about compressed air solving power supply noise problems but from what I could gather it was more for the fan itself making more noise then usual not for a. How to test Noise from the Output of Power Supply. Maytag washer makes loud grinding noise during the Fixya. If you suspect your capacitor is the source of the clicking noise, immediately turn off your HVAC system. Most people live with it unless it really bothers, then they replace the PSU. Sierra, El Capitan, Yosemite, etc. Contents: Related meeting and function requests being accepted for 72nd North American Conference Waterfowl gain reprieve from plan to expand oil and gas development in Alaska Mat. The best thing to do is to REPLACE the power supply unit with a new one. Solution: Make sure the correct power supply is plugged in. Posts about Power supply written by ffccsa1f. We pioneered the use of pre-compressed molded fiberglass for vibration isolation. Its not moving, but when i click the up arrow it makes a grinding noise. Weird whirring/humming sound from power supply fan. Shut down the computer and cut off the power supply. The only real risk is that the fan dies altogether, which can then cause the power supply (or more) to overheat and fail. Loose Screws. If your pool pump motor is making a loud grinding noise or is even starting to make a large high pitched scream, then chances are the ball bearings inside of the motor are starting to go bad. And if you. Details about 4500-9000RPM Grinder Mini Electric Belt Sander Buffer Polishing Grinding 7 Speed power supply with US plug. I located the sound and I am fairly certain it is the power supply fan (it is the fan at the back inside a metal box). Insert stick before you switch on the unit. 96 inches (about 17 x 4. These tools can boost engine power by more than 50%! These work by supplying more air into the engine. It sounds like a grinding noise almost. DVD Recorder problems - Grinding Noises or Clunks. The water supply line shifts intermittently as the water valve opens and closes, and can strike the wall or back of the refrigerator, causing a thumping or vibrating sound. But the 74-driven Xerox Alto makes a greater point about 74 logic as the progenitor of modern excessive power consumption, or demanding power supply requirements. power supply semi modular cable management graphics card high end says on the tin build quality good value grinding noise gold certified started making a noise. Also, when you go to the bathroom, you here the same sound like running water enveloping the room. Is this the sign of impending hardware failure ? Is there a way to check power supply health by software, the way you do with hard disks ? [Edit, Nov. Worst case, it's a bad PSU (Power Supply Unit). The normal sounds your car will make do not include a chirping sound. 99 with fast free shipping. Xstress Mini for residual stress measurement on quality control. The size is the same in the 100-110V, 220-240V, and 100-240V versions. See if it makes the grinding noise when you plug it into the wall and it turns on. The turntable is designed to, well, turn. when testing the z axis during machine set up. It'll start making a grinding noise, and sometimes go - 5139751. I hope this lasts until I can get a replacement!. I tried this, as well as moving it onto a power strip and back off, each time rebooting and unplugging then re-plugging and it makes no noise now. There are two types of moving parts in a pc that are capable of making a " grinding noise. I just got done replacing the fan on my wife's video card and upon starting it up, heard the fan in the power supply making a slight grinding noise. Make sure that the power supply is positioned horizontally and lays flat on the four rubber pads on its base. The result is a grinding sound and, in many cases, the motor will overheat and shut off. Cutting discs must not be subjected to any lateral pressure. The continuous rotation generally assists the microwave in providing more even heating of your food. maybe you can tell better if it is a faulty fan/bearing making the noise. For information on sealing technology, or how to prevent leakage of hydraulic fluid,. If the sound coming from the area around your drive has recently changed or is an excessive grinding or clanking noise, this may indicate a physical problem with the drive, whether internal or external. Since you indicate there is no fan in these power supplies, I just had a closer look, and I believe the grinding noise is not coming from the power supply after all but from the 007 MLM module right next to it. I can move the servo to an exact angle without problems. At this point you have the option of cleaning the fan or just replacing it. Nothing turns off as if the unit failed or something but the noise is unbearable. focus on the power supply if not there then its probably your main fan. The power supply Part number is 996500044559 and coat about $140. Return the dang thing as faulty, if it sounds like it's coming from there. Also, when the power supply is making this grinding sound, my friend noticed that it throws very little air out, since I suppose the fans are not running at their full potential. He moved and after the move his drive started making some grinding sounds and was having difficulties being found on boot. Parts Needed: Replacement Dell Power Supply Select Optiplex Desktops (Model Number N305P-05, Ref. Do NOT try to open the power supply to remove or replace the fan. Disconnect the water supply hose from the valve connector under the tank and loosen the. If belt would look at the puller/spindle it connects to. months now when i 1st start pc it makes like a whirling grinding noise quite loud so i have to. Solved: Hi, I have an HP Pavilion G7, and it's been having fan issues for a few months now. 6th, 2017 : it now seems that it might have been the disks making the abnormal noise, and not the power supply. SuperUser reader Rishat Muhametshin wants to know why some of his AC adapters and power supplies make a whining noise: I have many different AC adapters and power supplies for a variety of devices, ranging from small 5V/1A USB chargers to laptop power adapters and desktop PSUs. Weird whirring/humming sound from power supply fan. What can I do? Why does my Brother machine make a grinding or clicking noise when printing? Clicking or grinding noise when printing. Then remove the fan. I tried this, as well as moving it onto a power strip and back off, each time rebooting and unplugging then re-plugging and it makes no noise now. 4m) diameter and a power of 35 MW (47,000 HP) has been designed. High-pitched Power noise (the stuff you usually hear in old power supply/motherboard). Forewords: Nowadays, switching power supplies have replaced traditional linear power supply; become the power source of most electronics equipment. Nothing turns off as if the unit failed or something but the noise is unbearable. Solved! my hp envy ae008tx laptop, is making grinding, scratching, buzzing sound: Laptop fan making a weird grinding noise. You'll also obviously have different concerns depending on whether your power supply will be pushing a monster mining rig, an always-grinding workstation, or a mainstream productivity or gaming.