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Help Needed Desperately


Elton

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Got up this morning to find that my PC wasn't working.

 

Switch on the power and all you get is the fan going - no attempt to boot up.

 

You can open the DVD drive, but not the CD drive. Strangely, power to the CD drive comes direct from the DVD drive!

 

Is there any way I can tell whether I'm looking at a Motherboard or Hard Drive failure here (or something else).

 

I would have thought that a Hard Drive failure would still result in the PC attempting to boot up.

 

I'm desperate to get this working, as it contains so much work.

 

Please help......

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Can you access the BIOS and is there any beeps on start up?

If not it could possibly either be the BIOS battery is knackered or the mobo has died.

 

I would suggest disconnecting everything except the graphics card, main HDD memory etc... basically so you have a barebones system, then try to boot. Also see if the hdd spins up on pressing the power switch, if not then try it on another power connector.

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Hi Simon,

 

There's no beep and, therefore, no BIOS. What's the mobo and where could I find the BIOS battery?

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It spins from another power source, but not in original machine

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I am getting a slight crackling from the power supply, although some power must be getting through - can they partially fail?

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Here's where I'm at:

 

The drive spins when connected to another machine. When I remove the power supply from that machine and apply it to the broken machine, it doesn't spin.

 

Does that give anyone any clues?

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Elton, it sounds like there is no power getting to the mother board (mobo). On power up you would expect to hear a bleep or bleeps, then some sort of BIOS initialization on the screen, before the Operating System kicks in and Windows boots up.

 

You mention the fan starts up, is this the fan inside the power supply, or mounted near the mother board? You also mention the disk is powered from an external source, is the disk external or just it's power supply?

 

Terry

Terry

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Hmmmm....

 

But plugging a good power supply in didn't seem to solve it

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Elton:

Hmmmm....

 

But plugging a good power supply in didn't seem to solve it   :(

OK, so am I right in saying you have disconnected the leads from the internal devices (CD, DVD, disk, etc) and from the mother board. Taken the 'suspect' power supply out of the PC, and then installed a known good power supply in it's place, and still get no boot-up? (Not trying to sound pedantic, but just trying to picture what's happened so far...)

 

T

Terry

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