Hardware: Boot Problems., Power Supply?

[bakura82]

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

[patio]

It may or may not be gone but at 220Watts i'd replace it just on principle.

There are basically 2 styles ...20 and 24 pin.

Since a 24 pin can be used on an older machine i'd suggest that one if you plan on upgrading.

[bakura82]

It may or may not be gone but at 220Watts i'd replace it just on principle.

There are basically 2 styles ...20 and 24 pin.

Since a 24 pin can be used on an older machine i'd suggest that one if you plan on upgrading.

I have a couple other supplies.  I am not sure how to determine if a PSU will work though.   Is it okay if it is a different wattage?

[alexfue12]

why, of course that's why there's such a variety of PSUs out on the market.

Seeing as how your computer has a 220W psu, i'd just upgrade that to 300W. You could go to newegg.com for one. They have TONS.

[bakura82]

why, of course that's why there's such a variety of PSUs out on the market.

Seeing as how your computer has a 220W psu, i'd just upgrade that to 300W. You could go to newegg.com for one. They have TONS.

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?

[DeltaSlaya]

why, of course that's why there's such a variety of PSUs out on the market.

Seeing as how your computer has a 220W psu, i'd just upgrade that to 300W. You could go to newegg.com for one. They have TONS.

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?

Unless your motherboard has an ATX12V 4-pin connector, yes thats all the power the motherboard requires.
If the voltages are reading different from the PSU manufacturers specifications I'd suspect the motherboard, if it is indeed a problem.