Low voltage numbers and cold boot problems

[Daroo]

I've been trying to track down a cold boot problem for the past few months.

spec as follows

AMD 2600 barton
asus a7n8x deluxe v 1.4
corsair value ram 512mb x2
geforce 4 ti4200
maxtor 160gb hd
IBM 40gb hd
pioneer dvd drive
liteon 52x cdrw
antech trupower 330w
lian li pc60 aluminum case

swapped out motherboard but problem persist
changed HD, still no dice
which leaves the PSU

ran sandra and mbm 5.0 and got the following #s

Voltage Sensor(s)
CPU Voltage : 1.58V
Aux Voltage : 2.45V
+3.3V Voltage : 1.20V ****
+5V Voltage : 1.37V ****
+12V Voltage : 2.87V ****
-12V Voltage : -16.97V
-5V Voltage : 2.94V
Standby Voltage : 3.28V
Battery Voltage : 3.20V

Not sure if those #s are reliable since my computer is rock stable once it boots into window. Is there another program that can check voltage?

 

[KGB]

Daroo,

Those numbers are totally unbelievable.
I would suggest that you test your RAM with MemTest86 to verify things.
The only reason I suggest this is that you have "value" RAM.

 

[Daroo]

forgot to mention, I can run p95 and memtest overnight without any errors at all.

I switched to this cheapo ECS kv7ta3 (free with cpu from fry's), maybe the voltage reading is off.

Its gonna to be a PITA to put the aus back in again...

 

[Ryoga]

Most boards that have sensors can be viewed in the BIOS. I'd be surprised if ASUS didn't have that capability, being an enthusiast manufacturer.

You can also try Motherboard Monitor, Everest Home Edition, or Hmonitor.

Assuming other software has similar results, I suspect a more likely cause of those voltage readings would be a damaged mobo sensor. A system with those voltage readings would likely not function at all. The +12V line running below +3V would need to pull 4 times the amperage to supply the same amount of power, and I doubt the system could handle that kind of strain. Nevermind that your +5V voltage is below your -5V voltage, which would result in backwards current flow. Shoot, the -5V voltage is higher than your +12V line.

 

[Daroo]

Quick update, all issues resolved after putting in a new 550W TTGI superflower power supply bought on the hot deals forum.

Thanks all