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Cpu no power - Computers & Internet

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Check the power outlet then the power cable between the outlet and the PC. Depending on the brand it might use a common size power supply. It is a 5 minute swap usually. Make sure you know where all the cable go, take pictures.

Posted on May 11, 2014

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Posted on Jan 02, 2017

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I rebuilt computer with new parts, now won't start up. No POST. Power LED lights up, no cpu fans spin, no beeps. Psu works with paper clip test. New mobo, ram, psu, cpu.


Check display without cabinet maybe motherboard getting short with cabinet and try new Power supply check all the power supply connectors connected or not .

Nov 14, 2016 | Computers & Internet

1 Answer

Unknown cpu detected asus.Bios update is required to unleash its full power.


You will get this message when you install a CPU that is not supported by the mainboard BIOS. Many older mainboards have sockets that will support much more powerful CPUs than they were originally manufactured for. In some cases, the BIOS may be upgradeable to support the new CPU, in others, the CPU may draw too much power or the mainboard chipsets will not support the CPU capabilities. If your CPU is on the list of compatible CPUs...you may need to upgrade the BIOS to support it. You will need to install a CPU that the mainboard will run with to do the BIOS upgrade prior to installing the new CPU, however.

Jan 03, 2014 | ASUS MB P5KPL-CM C2D LGA775 INTELG31 ICH7...

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Please clear cmos if system no display after overclocking


Click the following picture to enlarge:
pctech1_0.png

CPU Overheated
If the system shutdown automatically after power on system for seconds, that means the CPU protection function has been activated. When the CPU is over heated, the motherboard will shutdown automatically to avoid a damage of the CPU, and the system may not power on again.

In this case, please double check:
1. The CPU cooler surface is placed evenly with the CPU surface.
2. CPU fan is rotated normally.
3. CPU fan speed is fulfilling with the CPU speed.

After confirmed, please follow steps below to relief the CPU protection function.
1. Remove the power cord from power supply for seconds.
2. Wait for seconds.
3. Plug in the power cord and boot up the system.

Or you can:
1. Clear the CMOS data.
2. Wait for seconds.
3. Power on the system again.

If after clearing the CMOS you still have no display, you may have damaged your motherboard, CPU, or RAM. If you need further assistance with this Motherboard, let me know.

Mar 25, 2011 | Biostar G31-M7 TE Motherboard

1 Answer

Why wont the mouse,keyboard and monitor not work after cpu,pwer supply install...


If the motherboard used to work with the old cpu and power supply, but does not with the new cpu and power supply, then probably the cpu or power supply is bad.
Why did you change the cpu and power supply?
If the power supply went bad, it could have overloaded the mother board as well as the old cpu.
If you think the old cpu went bad, how do you know it was not actually the motherboard that went bad?
All I can suggest is that you double check all the connections.
If you have USB mouse and keyboard, try a DIN connected pair.
If you are using the onboard graphics, try a PCI express card instead.
Tell us if there is any front light activity from the power switch, drive, etc.?

Dec 21, 2010 | Biostar P4M900-M4 Motherboard

2 Answers

A fan is making a horrible noise


hello

if its the CPU fan is making loud screech noises, its time to replace it

if the power supply fan is making the noise, its time to replace power supply , 5188-2859 is HP part number $25-$40

CPU fan = 5188-3722 HP part number , costs about $40-50

please rate my service with 4 thumbs up

Dec 09, 2010 | HP Pavilion Elite m9510f PC Desktop

2 Answers

Computer shuts down by itself


There can be many reasons of unexpected shut down of your system.Below are some remedies to solve it

1
Run an anti-spy ware and anti-virus utility to make sure that the shutdowns aren't being caused by a malicious program. If the shutdowns are infrequent, install a CPU temperature monitor utility to keep track of the CPU's temperature. If the CPU is overheating, or the shutdowns are frequent, then you will need to troubleshoot your computer's internal components.

2
Check any recently installed internal components to ensure that they are properly connected to the computer's motherboard. Make sure any new expansion cards or memory modules are securely seated in their slots, and ensure that the power and data cables are properly connected to any new drives.

3
Check for large dust buildups on your CPU fan. If the fan isn't effectively cooling your CPU, the overheating CPU will cause your computer to power off. Carefully pick away large pieces of dust with your fingers, and then spray the CPU fan with a can of compressed air to remove the rest of the dust.

4
Reapply the heat sink compound between the CPU and heat sink if the computer continues to turn off unexpectedly. Heat sink compound is a pasty substance that fills the space between the heat sink and processor, which increases the heat sink's ability to absorb heat from the CPU. But worn heat sink compound won't properly redirect heat away from the CPU. Power down your computer, disconnect its power cables and open the case. Unplug the CPU fan's power cable from the motherboard, remove the heat sink and fan combination from the CPU, and then apply the heat sink compound to the CPU--refer to your product manuals for details on reapplying heat sink compound.

Thanks .
Have a great day.

Oct 03, 2010 | Dell Inspiron 537s PC Desktop

2 Answers

No power on N1996 argon motherboard. Cpu fans


if it's switching its self off after about 10 second then Your CPU Chip is not right some how it could be / damaged / the wrong socket type for the board as alot of CPU's are very simmler / The CPU's (4 pin) power supply is not connected or the CPU hasent gone in to the socket properly when this happens it will power up but will send no power to the monitor, or somtimes set off an alarm that sounds like a sciron going off.

May 05, 2010 | HP Compaq Motherboard

1 Answer

Turns on, cd light comes on but cpu does not boot and light does not come on, the monitor says "no signal" . Cpu dpes not shut off at the button anymore. I have to unplug it to turn it off. HELP! By the...


You should get it repaired. That is likely a power supply failure. Yes, I see you have power, but I still say power supply, because there are 2 types of power: There is Motherboard power and there is CPU power. If CPU power is not correctly flowing, the CPU will not activate. If the CPU is not active, the board will not process any information, even though the board is receiving power. Power supplies are not hard to replace and are usually about 40 bucks

Oct 01, 2009 | Acer Aspire M1100-U1402A Refurbished AMD...

1 Answer

Power supply Ok.But CPU fans started with seconds It's stop.


sounds to me like your mainboard is bad, i bet if you closely inspect the capacitors around the cpu one or more is bulged out or leaking

Feb 15, 2009 | Asrock P4S61 Motherboard

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