davy1525

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Mar 18, 2009
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18,510
Hi I am trying to get my hp pavilion 700 to boot up all i get is a yellow light that stays on for 20 seconds and goes off no beeps but I did check the power supply fan and it runs I took the heat sink off and put my finger on the cpu to see if it gets hot ..it does is it the power supply or mother board thanks David
 

matthalamew

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Mar 19, 2010
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18,510
Hum... The Pavilion 700 PSU has a really strange feature! There is a small plug for a fan (3 pin) that is plugged into this motherboard from the PSU.

The Power Supply (PSU) died so I replaced it with a PSU that does not have this funky little MO plug- Now I can't get to the BIOs and the system doesn't see any of the IDE drives I've put in it!

Can't find a keyword search to look into this issue either! Is that plug needed to power the Bios? I am very shy of plugging anything other than the Mulx and the ATX 20/24 pins into a MO!

Please Advise : matt@northcarolinapcs.co m