Motherboard power on without switch  | |
October 26th, 2009, 05:50 PM
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#1 (permalink)
| | Junior Member
Join Date: Jul 2003 Location: Larkhall, Scotland
Posts: 19
| Motherboard power on without switch
After a problem with my old system, I upgraded but am stumped with this problem
Got the Motherboard on the bench, it's a Gigabyte GA-MA770-UD3
Using an AMD PHENOM X4 QUAD-CORE 9650 2300MHZ 4MB 95W AM2
With GeForce 9600GT, 1GB, HDCP, HDTV, PALIT Graphics card
And 1 stick of 2GB Crsair Memory
Powers up as soon as I switch on PSU without the power switch involved
Now, Iv'e tried everything I can think of -
Different PSU
Different Proccessor
Different Memory, Different memory bay
Different Graphics Card
No power switch connected
Have made sure nothings shorting out and the board looks physically fine, but I'm sure I came across this problem years ago on another build.
Any Ideas ?
Thanks,
Stephen |
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October 26th, 2009, 05:56 PM
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#2 (permalink)
| | Ultimate Member
Join Date: Nov 2006 Location: Bexhill, UK
Posts: 2,437
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Have you tried reseting cmos?
__________________ Q6600//6gb//2x 260GTX//2x raptor + 750gb//Antec EA650//Lite-on DVDRW//Msi P7n D + X-Fi //Antec 900 ''I dont suffer from insanity. I enjoy every minute of it.'' |
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October 26th, 2009, 06:14 PM
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#3 (permalink)
| | Millwright
Join Date: Dec 2002 Location: New Hampshire
Posts: 3,522
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I've got a Dell that does that the first time I boot after the power supply is unplugged and reconnected.
It works normally after that, until I unplug it again.
__________________
Hard Sayin Not Knowin
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October 26th, 2009, 06:49 PM
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#4 (permalink)
| | Junior Member
Join Date: Jul 2003 Location: Larkhall, Scotland
Posts: 19
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Thanks for the quick reply - just tried taking the battery off and cleared it for 20 mins but still the same |
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October 27th, 2009, 07:07 AM
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#5 (permalink)
| | Ride 'em Cowboy
Join Date: Oct 2001 Location: Dallas, TX
Posts: 8,784
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Look in the BIOS for the settings "What to do in the event of a power failure." Set it to do nothing.
Also look for wake on lan and make sure it's disabled.
__________________ Have you hugged your kid today?? |
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October 28th, 2009, 04:09 PM
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#6 (permalink)
| | Junior Member
Join Date: Jul 2003 Location: Larkhall, Scotland
Posts: 19
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Wish I could get to the bios to change something - the board powers immediately, without manipulation of the Power Switch pins - so there MUST be a short circuit somewhere on the board and this does not allow a video signal to get to the monitor |
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October 28th, 2009, 08:09 PM
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#7 (permalink)
| | Junior Member
Join Date: Oct 2009
Posts: 8
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You should rather have 2 sticks of 2x1GB memory, as dual channel (having two sticks of RAM in the correct slots) work a lot faster. You should purchase another 2GB stick if you want to get the best performance. Also consider installing 64-bit, Phenoms support it and 64-bit gives you much memory advantage. |
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October 28th, 2009, 10:11 PM
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#8 (permalink)
| | Millwright
Join Date: Dec 2002 Location: New Hampshire
Posts: 3,522
| Quote:
Originally Posted by masterdelta You should rather have 2 sticks of 2x1GB memory, as dual channel (having two sticks of RAM in the correct slots) work a lot faster. You should purchase another 2GB stick if you want to get the best performance. Also consider installing 64-bit, Phenoms support it and 64-bit gives you much memory advantage. |
I might be a good idea to fix the OP's computer, before you worry about upgrading it.
Edit" Any test I have seen, dual channel is only slightly faster, and there is no advantage to 64bit, except the extra memory that most people don't need yet.
Last edited by stroyal : October 28th, 2009 at 10:33 PM.
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October 29th, 2009, 07:08 AM
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#9 (permalink)
| | Ride 'em Cowboy
Join Date: Oct 2001 Location: Dallas, TX
Posts: 8,784
| Quote:
Originally Posted by judderman Wish I could get to the bios to change something - the board powers immediately, without manipulation of the Power Switch pins - so there MUST be a short circuit somewhere on the board and this does not allow a video signal to get to the monitor | Hold down the DEL key or whatever the key is for the BIOS before hitting the power. |
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