Hardware: Boot Problems., Power Supply?

B

bakura82

New Member
Compaq Evo D51c (HP lists as D510 Minitower)

Previously: Time seems to have made the problem worse. Originally, I could get to the RAM check with some jimmy rigging. I could not boot, but I did verify the problem is not RAM related.

Currently: No self test POST beeps. Black screen only.

Checked the power supply and came up with weird values:

Compaq 220 watts power supply, PFC, dual voltage
OEM Part #277910-001
Replacement part #277979-001

-----------|-----------
BRW (5.9V) | BRW (6.0V)
-----------|-----------
BLU (0.0V) | BRW (6.0V)
-----------|-----------
BLK (0.0V) | BLK (0.0V)
-----------|-----------
WHI (0.0V) | RD (10.4V)
-----------|-----------
BLK (O.0V) | BLK (0.0V)
-----------|-----------
BLK (O.0V) | RD (10.4V)
-----------|-----------
BLK (O.0V) | BLK (0.0V)
-----------|-----------
xxxxxxxxx | GRY(10.3V)
-----------|-----------
RD (10.4V) | GR (10.3V)
-----------|-----------
RD (10.4V) | OR (23.3V)
-----------|-----------


I don't know why the orange line is 23.3V. That makes no sense to me. All the ATX diagrams I have seen show a max of 12V. Also, the Peripheral Power
Connectors are outputting 23.3V.

Does this mean my power supply is gone? If so, I have spares, but for different comps. What do I need to match so I can make sure another supply will be compatible?

Thanks!


Esteban
 
That's quite strange... I don't know the pinout's off the top of my head, but I know there should be a 3.3v there as well. Assuming these weird voltages didn't fry anything, a new PSU should fix it...
 
The_Other_One said:
That's quite strange... I don't know the pinout's off the top of my head, but I know there should be a 3.3v there as well. Assuming these weird voltages didn't fry anything, a new PSU should fix it...
Click to expand...
I figured as much. I have some other PSU's, but I am not sure if they are compatible. What's the best way to make sure I don't make something go "pop"
 
Still no POSTing...

I found an older 300W supply of mine. I plugged it in and the crazy thing is that I am getting all the same voltages I posted above +/- 1. Is it possible that my mobo is telling these power supplies to do something different or something. THis makes no sense to me. :/

Should all I be plugging in is the "main" 20 pin cable?
 
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