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PC won't start

By hefty10 ·
Hello
Could someone help me please.My friend has an AMD 1200 or 1300 CPU with 315 mb RAM,40 gb HDD,onboard video and sound.It recntly stopped working for no apparent reason.It will not start.There is power going to the monitor from the PC power supply but the PC will not start.I tried the power supply in a similar PC and it worked 100%.
I then tried going from the start(no hdd,floppy,etc)and building up,but no go.I tried different RAM in different slots,but it still does not work.There is not even a BIOS screen.
I came to the conclusion that the motherboard had died,so I bought an ASUS P4S800 motherboard,a Pentium 4 2.6gb CPU and 512 Mb ddr ram.I swapped it into the case with the same hard drive etc and the exact same thing happened,nothing.No bios startup screen or anything.There is power going to the board as some small lights on the board come on and the power lights on the DVD rom and the burner come on,but nothing even tries to kick in.It is silent.Could someone tell me what the problem maybe and how to fix it please?
Thanks
Steve

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by valis In reply to PC won't start

man... in that situation, the only thing i can think of is...

ba ba ba bum...

THE MONITOR!!

make doubly sure the monitor is getting power, try the monitor on another computer, maybe that's it?

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by hefty10 In reply to

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by hefty10 In reply to PC won't start

No the monitor is fine I already thought of that

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by TheChas In reply to PC won't start

On the new motherboard, check that the clear CMOS jumper is NOT in the clear position.

Many motherboards do not start up if the jumper is set to clear.

Another item to check, is that the video card is FULLY seated in it's slot.
AGP cards have interleaved contacts, and must be fully seated for all connections to make.

Chas

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by hefty10 In reply to

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by gkheart1 In reply to PC won't start

Hi,


You stated that you installed a new mainboard and P4 cpu. Is the power supply P4 compatable does it have the 4 pin plug for P4 cpu power?
The Asus P4S800 mainboard has the P4 power connector on the board. Did your ps have the 4 pin connector on it?? I don't know if this will help, But the P4 won't run without it! I hope this may help you.
(you didn't state what ps you have)


Regards, Gil

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by hefty10 In reply to

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by csmith In reply to PC won't start

Usually this is a BIOS problem in the video card.
The Video Card has a BIOS on it.
The PC passes control to it at the very beginning of the boot.
If the card loops or crashes, rather than not responding, the boot hangs.
If the card does not respond, then the PC BIOS issues a beep code that the Video Card is bad.
(Most no response errors are caused by the card being improperly seated.)
The obvious troubleshooting test is to try a different "Known Good" video card.
Regards, Chris

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by hefty10 In reply to

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by fred07 In reply to PC won't start

Hi

if you bumped the pc and shorted the MB to case this would happen

Start with original set up and do a bench test out of the case with only wideo hooked up and see if it screens

do same with second setup

If no screen then MB or CPU is dead

it only takes a darn little short to MB standout to screw things up

Make sure you aare "static" guarding at all times

Two people in one machine at same time is a static disaster or even handing parts to another person is a static disaster without the proper precautions

fred

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