Motherboard Not Receiving Power From Power Supply [Fixed]

Have you ever encountered a Motherboard Not Receiving Power From Power Supply? The Power Supply Unit (PSU) provides power to the computer’s base and all of its other parts. First, make sure that the PSU is securely plugged in. Also, make sure the switch on the back of the PSU is turned on. Now, check the Power switch one more time to make sure it works.

Motherboard Not Receiving Power From Power Supply

Please ensure that the extension cord’s main power switch is turned on. Please get a new extension cord or wall plug if it still won’t turn on.

Causes for Motherboard Not Receiving Power from Power Supply

The following causes may help identify why motherboard not receiving power from power supply and fix the issue.

Power Source Incorrectly Plugged In

Not plugging your computer into its power outlet will prevent it from starting. Check that the computer’s power cord is fully plugged in. The power outlet may also be an issue. To verify power production, plug a phone charger with your phone into the outlet. Plug in a bulb or other electronic gadget that shows if it’s operating.

Circuit Breaker or Fuse Tripped

Computers often trip circuit breakers or fuses when turned on due to their high power consumption. Please check your circuit breaker to ensure the computer’s power outlet is not tripped. A tripped breaker can be fixed by pressing the plug reset button. If your outlet doesn’t have a reset button, reset it at your circuit breaker panel in the basement.

Faulty Connections

If your computer is dead after checking its power source, check its motherboard for loose or damaged connections. The Computer Motherboard Replacement Guide can help you check motherboard connections.

Faulty Motherboard

If a known-good power supply keeps the system dead, the motherboard is likely wrong and must be replaced. Use the Computer Motherboard Replacement Guide to replace a faulty computer motherboard.

How To Fix Motherboard Not Receiving Power From PSU?

• Check for disconnected computer power cables. Unplugged power cables are a common cause of computer shutdowns.
• Plug your device into the wall if necessary. Remove power strips, battery backups, and other power distribution devices between your PC and the wall socket. Leaving something out of the equation will lead your computer to start getting power. You may need to replace your surge protector or power distribution devices. For simplicity, troubleshoot with the PC hooked into the wall if nothing changes.
• Your computer won’t start without power, so check the power source.
• Check the power supply voltage switch on a desktop. If the power supply unit (PSU) input voltage is wrong for your country, your computer may not start.
• Try using AC power alone by removing the primary battery in the laptop or tablet. You don’t need to charge your handheld computer to use it. After this, if your machine turns on, you should get a new battery.
•  Use your laptop near a power outlet until it’s replaced!
• Check the laptop or tablet’s power receptacle for damage. Look for broken pins and debris that may prevent the computer from charging and gaining power.
• Replace the CMOS battery if the computer is older than a few years, has been extensively turned off, or has the main battery removed. Faulty CMOS batteries often cause unpowered computers. CMOS batteries cost under $10 and are available almost anywhere that sells batteries.
• Ensure the power switch is linked to the motherboard on a desktop. Although rare, the power button may not be connected to the motherboard, preventing your PC from starting.
• Check your desktop PC’s power supply. At this point in your desktop troubleshooting, your power supply unit is likely dead and should be replaced. To be sure, try it. When testing is easy, keep a working piece of hardware.
• Replace your desktop motherboard. Your PC’s motherboard may be broken if the wall power, power source, and power button all work. Replace it.

How to Test If A Motherboard Is Getting Power?

This is crucial for motherboard power testing. The following two methods work:

First method

Check to see if the power source is on to make sure the motherboard is getting power. Take it out of the box and check the computer for power. Plugging the motherboard into a wall socket will reveal a plug.

The light on indicates electricity delivery. It will initially appear like the light is off. The battery is dead and needs charging. Once ultimately charged, the light will always be on.

Second Method

The second way involves checking if the motherboard is receiving power. Check company reviews. It would help if you considered various factors while buying a computer.

Make sure the brand is well-known and respectable. Find a warranty that covers product problems over time. Read the warranty fine print if the PC doesn’t come with one.

How To Avoid Motherboard Not Receiving Power From Power Supply Unit Issue?

A bad PSU can cause random shutdowns, blue screens, boot failures, and component damage. Follow these simple rules and best practices to keep your PSUs working well and make them last longer.

Choose a quality PSU

First, buy a high-efficiency PSU that fulfills your power needs to avoid PSU failures. PSUs should have trustworthy parts, cooling, overvoltage, overcurrent, and short-circuit protection.  

High-efficiency ratings like 80 Plus Bronze, Silver, Gold, Platinum, or Titanium reflect how well the PSU converts AC power to DC power, reducing heat and energy waste. Use online calculators or tools to estimate your power consumption and buy a PSU with enough wattage and connections.

Install the PSU correctly

Installing the PSU properly in your computer case is the second step to preventing breakdowns. Follow your PSU and case instructions, and use the correct screws and wires.

Your case design and airflow determine whether the PSU fan should face up or down. The fan needs clearance and ventilation to avoid overheating and dust buildup. Bending, twisting, or pushing PSU cables can damage the wires and connectors.

Clean the PSU regularly

Regular compressed air or soft brush cleaning is the final step to preventing PSU failures. PSU dust and debris can impair cooling and performance. Before cleaning, unplug the PSU from the power supply and other components.

Avoid opening the PSU case to avoid high voltages and voiding your warranty. Clean the PSU every six months or more often if you live in a dusty area.

Monitor the PSU performance

Monitoring performance and problems is the fourth step in PSU failure prevention. You may measure your PSU’s voltage, current, and temperature using software or hardware and compare them to specifications.

Listen for clicking, buzzing, or whining, which may indicate a malfunctioning fan, capacitor, or transformer. If you detect weird readings or sounds, back up your data and replace your PSU immediately.

Upgrade the PSU when necessary

The fifth method for preventing PSU failures is upgrading when needed. Adding a CPU, GPU, or hard drive may require more power or different connectors from your PSU.

PSUs older than five years may lose efficiency and dependability; therefore, upgrade them. It would help if you got a new PSU with more wattage, efficiency, and system compatibility.

Protect the PSU from power surges

Power surges and spikes can damage or ignite PSU components; protecting them is the sixth step to PSU failure prevention. Plug your PSU and other devices into a surge protector or UPS.

A UPS will provide backup power and smooth out variations during a power loss or brownout, while a surge protector will redirect excess energy from your PSU and other devices. Avoid overloading the circuit with extension cables or several adapters, which can be short.

PSU Seems To Give Power But No Reaction From Motherboard

There’s a chance that the computer or power supply is broken if the motherboard won’t power up, but power supply seems fine. Suppose you have extra parts for a second motherboard and power supply.

In that case, you can attempt testing this motherboard with a different power supply and the PSU on a different motherboard. In addition, you can get a multimeter to check the amount and property of power feeding from the PSU. Another thing to do is to look attentively at the board to see if any capacitors are damaged.

Motherboard Has Power But Won’t Turn On

A problem with the power button on the case itself could cause your PC to not turn on even when the motherboard light is on. Your computer may be impacted by frequent power outages.

Because computer components aren’t the best at withstanding voltages outside their operating range, a mighty power surge may damage those components.

After a power surge, it is common for motherboards, processors, and graphics cards to become completely unusable. Data corruption is the most common problem brought on by a power outage.

Computer Not Powering On, Tested PSU W/O Motherboard And Works Fine

First, ensure the motherboard, graphics card, and other parts are correctly connected to the power lines. Also, make sure the cables are securely inserted and unharmed.

Next, try taking out the motherboard’s CMOS/BIOS battery, giving it a minute to settle, and then replacing it. Sometimes, boot troubles can be fixed by doing this and resetting the BIOS.

If the problem persists, examine the motherboard for any evident damage, such as bulging or leaking capacitors. Additionally, make sure the CPU is installed correctly and isn’t overheating.

If the problem persists, the motherboard can be the source of the problem. To identify the issue, you can replace it with a known-to-be-functional alternative. As an alternative, you should bring it to a repair shop so that it can be properly diagnosed and fixed.

PC Build Won’t Power On At All, No Lights, No Fans

There could be a multitude of variables. However, the power supply should be the first thing you should check. Examine the power lead; if feasible, use a different one.

Verify that the power supply is operational. Disconnect all wires from the board’s power source. Examine the power supplies on/off switch (if applicable). All connections are keyed, so they should fit together naturally without any difficulty. Activate. Verify that the power supply’s fan is operating.

This may spark things off. There could be many issues if the power supply fan is not operating. After that, you would either have to start over from scratch or ask a buddy for advice.

Although there is always a chance of a malfunctioning or damaged motherboard, power supply, etc., this determination requires technical know-how.

Troubleshooting Motherboard – No Power/No Boot/No Display

There is no need to check the power. If the keyboard lights up:

• Put back the power button header
• Please make sure the following things before you do anything else:
• The computer is off
• The rocker switch on the back of your PC is set to 0, which means your machine is not getting power from your PSU.
• The PC is no longer plugged into the wall. Do not plug it in or turn it on again.
• On your processor, look for the PW SW and RES SW lines.
• These headers are part of a group known as the f-panel or front-panel headers. This group of pins is usually found on the motherboard’s bottom right. You can find out where your PW SW/RES SW headers are in this set by reading the manual for the motherboard type and maker you have.
• A lot of motherboards have the model name and the name of the company that made them written on them. If you send us a clear and well-lit picture, we can help you figure out what motherboard you have in a Skytech Gaming PC.
• You should take out the graphics card first to get to the headers quickly.
• Once you find your PW SW/RES SW headers, push them back into place by unplugging them and then safely plugging them back in.

How To Fix A PC That Shows No Sign Of Power?

If you want to know why my pc is not turning on, but the PSU works: what should I do, you must follow the following two steps to solve your problem:

Step 1: Check cables

• If not, start with wall cables.
• Check the wall outlet’s functionality by plugging in a known working device, such as a lamp.
• Verify that surge protectors and power strips are adequately plugged in and turned on. After that, hook up more electronics to the power strip and test them.
• Ensure your PC’s power supply switch is on.
• Check that the PC power cord is securely plugged into the power supply and outlet, as it can loosen with time.
• Desktop PSUs and many monitors share cables. Change the monitor cable to the PC cable and see whether your monitor turns on. If not, try your PC with the monitor’s power source.
• If no spares are available, obtain a C13 cable. Some power-hungry PC configurations utilize a higher gauge cable, so replace yours with a similar gauge.
• Check your case cabling after ruling out the power cord and wall socket.

Step 2: Internal Wiring

Opening a prebuilt PC may void your warranty, so consult your system maker. Before doing anything else within your computer, disconnect the power supply wire from the outlet. Remove the wires from computer accessories like keyboards, mice, external hard drives, and monitors.

USB devices or display cables can create power issues, so if your PC boots without them, plug them in individually and test until you find the problem peripheral. Then try booting without it or with a replacement.

Unplug your computer from the wall and open your case to see your internal components. To access your PC’s interior, follow any applicable documentation and instructions.

After opening your case, examine and reseat all the power supply-to-PC component connections for looseness. Make sure the lines are properly seated on the PSU side if you have a modular PSU. Check your PC’s power after securing everything.

If that doesn’t work, unplug all component power cables. SATA and Molex power connectors are used on storage devices and other accessories, 24-pin and CPU power cables are on your motherboard, and additional power cords are used for PCIe devices like your GPU. For more on power supply connections, see everything you need to know about power supplies.

After unplugging the PSU, reseat the motherboard and CPU power cords, plug in your PC, and check for fans whirling and hardware lights. If so, that’s excellent!

Power down the system, reattach the power cords to each piece of hardware, and test until you discover the issue hardware. Again, this introduction to PC building can help you determine what hardware needs a power supply or where things go.

How To Troubleshoot A Dead Motherboard?

The following procedures start with the most straightforward and most typical troubleshooting suggestions:

Check power cables

Check the 24-pin connector, CPU power cable, and any extra power cords your system may need, such as after a large processor overclock. Why check CPU power cords when many motherboards have LEDs or lights after powering up?

Even after testing the CPU separately? Not all motherboards include visual indications. Check to see if the CPU isn’t getting electricity from the power source and inhibiting POST.

Get rid of RAM and GPU

If your motherboard has illuminated power indicators, remove the RAM and GPU to see whether it powers on without them. Remove these as potential issues.

A poorly positioned GPU can prevent a mobo from starting. Motherboards without power indications may need reseating the GPU, testing other RAM slots, and trying different sticks one at a time to determine if the problem is a system failing to POST or a dead mobo.

Check power

Make sure your power source powers your motherboard. Please attach it to the motherboard instead of installing the alternate power supply into the case.

Most individuals will find the PSU tester most straightforward because they plug in the cords. It would help if you determined which connector pins to utilize while evaluating continuity with the multimeter.

It costs less than buying a second power supply if you don’t have one. If you think the power source is the issue, ensure your outlet works, too. Surge protectors sometimes fail, so this is extremely important.

Check motherboard standoffs

When changing case standoffs, you may leave one out of alignment with the motherboard’s holes. If the metal piece touches the back of the mobo, it can short out the motherboard, making it appear dead.

If you think your mobo is dead, remove it from the case to test it. Put your motherboard on a non-conductive surface outside the casing and power it.

Troubleshooting – Why Won’t My Computer Turn On?

Considering that spectrum of problems, here are the most typical computer startup remedies. 

Try a different power source

When you start your computer, nothing happens. There are two options: Your PC either has no power or its internal power source has failed, requiring replacement. Instead of using the UPS, surge suppressor, or power strip, plug the computer straight into a wall outlet. If nothing happens, connect a desk lamp to the outlet to test it.

Try a different power cable

Though doubtful, this is a simple correction: Replace the power cord with a spare. If the old cable fails, your computer should restart using the new cable.

Let the battery charge

Laptops that have run out of juice sometimes fail to start even when hooked up to wall power. Plug the laptop in and wait 30 minutes for the battery to charge before turning it back on.

Decrypt the beep codes

Startup beeps are heard on some motherboards. A single beep may indicate regular operation, but a sustained, continuous tone may indicate a power supply failure.

There is no set code, but the beeps can sound like Morse Code because they have both long and short tones. Check the computer’s user guide, website, or tech support to identify the mistake. Unfortunately, not all motherboards employ beep codes, so this may not work.

Check your display

If your computer is operating or producing noise but nothing appears on the screen, turn on and connect the monitor. Also, make sure the brightness wasn’t unintentionally adjusted to zero. Plugging the PC into a different display may fix the issue.

Can A Dead CPU Cause No Power To Motherboard?

No, a dead CPU prevents a computer from booting. Computers’ main brain is the central processing unit (CPU), which manages all of their parts and carries out orders.

The machine cannot initiate the boot or perform other significant tasks if the CPU isn’t working. A dead CPU makes the entire system unusable because it coordinates the actions of the different components, including memory and storage.

What Are The Steps For Testing If A Motherboard Is Good Or Bad?

You should know a few things about bad motherboards before we show you how to test them to see if they are dead.

Physically Damaged Parts

You can check the motherboard by hand when the computer is turned off. Usually, capacitors leak or swell because they get too hot, have a flaw in the material, or are too old. If you see a capacitor about to blow, something might be wrong with the processor.

Unusual Burning Odor

The burning smell is a clear sign that the computer is failing. Usually, a part that smells like it’s on fire is too hot. An unsuitable part can sometimes cause something to overheat or break. For instance, a graphics card or RAM that doesn’t work with the motherboard can hurt it.

BIOS Menu Appears at Startup

Most of the time, you have to set up to get to the BIOS screen manually. If it shows up on its own during startup, it means there are a lot of program or hardware errors, like a problem with the motherboard. The BIOS menu handles your PC’s hardware deals.

With it, it would be easier for the motherboard to talk to new parts like a video card. The menu shows up when the computer first starts up. It’s also possible for the BIOS to show up when something on the computer stops working or is damaged.

Applications Are Malfunctioning

If your motherboard is broken, it cannot control all of your computer’s gear. This could cause more shutdowns and longer wait times for apps.

Random Locks or Freezing Issues

If your computer suddenly freezes or locks up, that’s another sign that the motherboard is broken. If your PC stops, you should check to see if the problem is with the software. Once you know it’s not the software, check other hardware parts, like a failing motherboard, to ensure it’s not those.

Conclusion

It is annoying when the motherboard doesn’t get power, and other people have said the same thing about X. Connectivity problems, like electronics not working with each other, a broken part, or a CMOS battery, can cause problems. It’s easy to solve this, though.

The most important part of a computer is the motherboard. That’s why, getting power to the laptop is very important. That’s it; those are the ways you can check to see if the computer is getting power.

Frequently Asked Questions