Planty02
Member
Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
User status: Offline
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Evening chaps (and chappettes),
I rebuilt my old pc which has sat on my desk un-used for several months and have ran across ome kind of power issue.
I have plugged in the 24pin power connector on the M/B as well as the 4 pin connector on the m/b located near onboard VGA and PCI-E slot (presumably this powers the graphics output). When the computer is powered up it will stay switched on for a random period of time (anywhere between roughly 2 and 10 seconds) then loses power.
I have found that if the 4 pin power connector is unplugged then the machine stay on but no graphics are displayed through either my graphics card of the onboard output.
So far I have tried:
- Unplugging the 4 pin power plug and leaving the PCI-E card in
- Removing the PCI-E card, leaving the 4 pin power connected
- Unplugging all power (HDD's etc) except the tw power connectors
...with no luck. The PC was working perfectly before and has had minimal changes in spec. Any ideas would be greatly appreciated.
Thanks Guys 
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline
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Power supply giving the board and grapics card enough juice? What "W" is the PSU?
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deano87
Member
Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline
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Make sure you have the right 4 pin connector on the 'graphics' power - I made this mistake. It'll either be a PCI-E connector or ATX-somethingorover connector 
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Planty02
Member
Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
User status: Offline
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The PSU is 350w which I know isnt great but its only a basic P4 machine and I have tried it with only the 24pin Mobo and 4 Pin plugs connected to avail.
Its an ATX connector deano, The machine has run perfectly before with exactly the same setup  I think I might have another psu to test it. If that is the same I can only point the finger at the mobo
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deano87
Member
Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline
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Probably the mobo yeah. Don't do what I did and try connecting the PCI-E Express connectors onto the ATX  couldn't find the ATX connector amongst the spaghetti that was the cables, then I found it just as I was filling out the eBuyer returns form 
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline
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The 4 pin plug is for the direct power for the Processor btw, not for the PCI-E
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deano87
Member
Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline
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quote:
Originally posted by pow
The 4 pin plug is for the direct power for the Processor btw, not for the PCI-E
Mine was for the ATX12v or something, which is the graphics card. Because when it isn't plugged in, you get the BIOS beeps for graphics error 
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Planty02
Member
Registered: 5th Mar 05
Location: Burslem, Stoke-on-Trent
User status: Offline
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quote:
Originally posted by pow
The 4 pin plug is for the direct power for the Processor btw, not for the PCI-E
You 100% sure on that pow? When its unplugged the machine will power up fine and give the usual BIOS beeps, just no display 
Im going to try to find a similar PSU at home and give it a test I think, hopefully i'll have one lying around
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deano87
Member
Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
User status: Offline
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He is lying, that's why.
http://www.pchell.com/hardware/beepcodes.shtml
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