perksy
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| posted on 12/12/10 at 08:50 PM |
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Desktop Computer Help
Hello Lads
a mate at work has just contacted me with a problem he has with his desktop computer
He turns it on at the mains and it powers straight up but nothing is showing on the screen
It doesn't seem to turn on or off using the on/off button on the tower
i thought it might be just the on/off switch but why is there no display to the screen ?
is this 2 seperate problems ?
he's not getting any mad sucession of bleeps from the motherboard
cheers for any help
perksy
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graememk
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| posted on 12/12/10 at 08:51 PM |
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i'd start with PSU
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RichardK
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| posted on 12/12/10 at 09:08 PM |
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Sounds like the screen is either unplugged or gone up the swanny to me, have you another screen that can be used to test.
Cheers
Rich
Gallery updated 11/01/2011
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greenwood03
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| posted on 12/12/10 at 10:58 PM |
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could be the graphics card? if he has fitted an 'after market' card worth trying to connect to the original vga output....had that with my
daughters pc recently - spent ages despertaley backing up the info as was sure that the thing was on the way out - only to find that the super dooper
graphics card was broken.....
http://southernkitcars.comIntermarque Club for owners in the South/South East
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RazMan
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| posted on 13/12/10 at 09:30 AM |
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quote:
Originally posted by perksy
He turns it on at the mains and it powers straight up but nothing is showing on the screen
Sounds like either the monitor or cable - if the graphics card goes phut it normally gives an error beep on startup.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Airhead
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| posted on 13/12/10 at 04:06 PM |
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quote:
Originally posted by perksy
Hello Lads
He turns it on at the mains and it powers straight up but nothing is showing on the screen
It doesn't seem to turn on or off using the on/off button on the tower
That is almost definately a fritzed PSU.
I've got a little black book with my poems in!
My build diary: http://www.mx5-locost.co.uk
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RazMan
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| posted on 13/12/10 at 04:11 PM |
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quote:
Originally posted by Airhead
That is almost definately a fritzed PSU.
How can it power up without a psu?? Surely if everything except the monitor is powering up it has to be ....... 
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Airhead
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| posted on 13/12/10 at 04:56 PM |
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The machine shouldn't be turning on without the intervention of the power switch - if it is and isn't throwing out beep codes and if the
monitor is blank it is fair to assume that the PSU is faulty and whilst able to power up the fan it isn't supplying the graphics card with
sufficient juice.
I might be wrong, I accept that, but what on earth does a faulty graphics card, sVGA lead or whatever have to do with the fact that it doesn't
switch on using the power switch?
15 years in the trade, I'd be trying the PSU...
I've got a little black book with my poems in!
My build diary: http://www.mx5-locost.co.uk
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RazMan
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| posted on 13/12/10 at 05:16 PM |
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Apologies - I just re-read the original post and saw the reference to the mains switch not making any difference.
Yep, I agree it has to be the PSU - I've also been in the trade for a few decades and simply missed the detail
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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graememk
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| posted on 13/12/10 at 05:52 PM |
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is its a E-machine with a p4 478 by any chance ?
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Airhead
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| posted on 13/12/10 at 09:38 PM |
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quote:
Originally posted by RazMan
Apologies - I just re-read the original post and saw the reference to the mains switch not making any difference.
Yep, I agree it has to be the PSU - I've also been in the trade for a few decades and simply missed the detail
Yep, if I had a pound for every time I'd missed a detail I'd have at least £12.37. Always nice to meet another techie 
M
I've got a little black book with my poems in!
My build diary: http://www.mx5-locost.co.uk
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