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Discussion Starter · #1 ·
Helping a friend and I am stumped by an Intel D915GEV desktop motherboard with onboard video, Intel Boxed LGA775 P4 3ghz CPU and 2.5 mb ddr2 ram. System booted into Windows XP then shut down after running 5-10 min. Verified PS fan was not turning.
  • Shutdown system and waited 1 hr before restarting.
  • Verified it still started to boot into XP before I shut down and installed a new Antec 500w power supply.
  • Motherboard LED Light comes on but no response when pushing power switch.
  • Checked switch continuity and it is good.
  • Removed Front panel PWR connector and carefully jumpered with flat blade screw driver. Still nothing except the green MB led is lit.
  • Tried removing all ram and disconnecting everything except CPU power connector and main MB power connector to see if I would get a beep code. Still nothing except yellow Motherboard LED. First time I worked with an Intel Motherboard - always ASUS and am wondering what I am missing?
  • Did the mother board fail due to the bad PS even though I was able to boot to windows before removing the bad PS? I really would appreciate your help.
 

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Did you test the power supply with a power supply tester before installing? If not, test the power supply to make sure all voltages are within range and that the Power Good signal is less that 500ms.
 

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Discussion Starter · #4 ·
1) I bumped the "Mark Solved" button by mistake and then resubmitted since it is not solved.
2) I tried 3 different makes and models of high quality supplies and yes they were tested and confirmed within acceptable range on all parameters. For the last test of the motherboard, I unplugged/removed modem and all drives & plugged in only the 4 pin CPU connector and the 24 pin motherboard connector. Switched power on and the yellow/green led on the MB came on but the board would not boot using the power switch or a flat bladed screwdriver to short across pins 7 & 8 on the front panel header with the ps connector unplugged. Is the Motherboard bad or is there another test I can make? Thanks!
 

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For future info, the Solved button changes to Mark Unsolved. :) For now I'm going to delete the other thread. Good luck.
 

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Switched power on and the yellow/green led on the MB came on but the board would not boot using the power switch or a flat bladed screwdriver to short across pins 7 & 8 on the front panel header with the ps connector unplugged. Is the Motherboard bad or is there another test I can make? Thanks!
It doesn't sound like you have the front panel connector pinned out correctly. If this is a standard Intel board the front panel connector is a nine pin connector. The pins on the side that has five pins are numbered 1, 3, 5, 7, and 9. The pins on the side that has four pins are numbered 2, 4, 6 and 8.

Pins 2 & 4 are for the POWER LED, pins 6 & 8 are the POWER ON pins, pins 1 & 3 and the HARD DRIVE ACTIVITY LED pins and pins 5 & 7 are the RESET pins. Pin #9 is not used.

The POWER ON and RESET pins are not polarity specific (the connector can be connected either way). The POWER LED and HARD DRIVE ACTIVITY LED pins are polarity specific. If you get the machine started by shorting pins 6 & 8 when you finish your pinout if the LEDS are not functional turn the connectors 180°.
 
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