Asus P4C800 Deluxe
1024 Kingston ValueRam (2x512)
80gb Seagate 7200
250gb Maxtor 7200
2x Hard Drive fan
ATI 9600Pro 128mb
Sound Blaster Audigy 2 ZS platinum
My computer randomly shuts off, and has been doing this for the past few years. I've tried replacing RAM, video card, heatsink, psu, but nothing seems to fix it.
My friend sent me this program to monitor temperatures, and my hard drives were at 50+ degrees. So i bought some hard drive fans, being sure that this was the reason for the crashes.
After a few days the voltage for -5v went from not being used to being red and at -5.95v
i moved around some of the 4pin power cables in a trial and error and the -5v went back to not being used. It was stable for about a day, then powered off randomly like usual and the -5v went back to being red
im also not sure what the aux means
sorry if this isnt descriptive enough i figured it would be a psu problem so i posted here
As far as I know, the -5V and -12V rails are rarely used any more. In fact there are PSUs that dont even have them I think. The AUX could be the +5VSB (stand by) rail which is needed if you set your computer to the Suspend-To-RAM setting for standby. What is the default voltage for your cpu?
So a vcore of 1.55V is not so bad, it could simply be a wrong reading by the motherboard. My old a64 3000 supposedly has a vcore of 1.56-1.59V when its default is 1.5V. It could be right and the motherboard is terrible at regulating the voltage, but usually you should take the readings with a grain of salt.
If you have another psu lying around you could stick that in and see if the same thing happens (the random shutdowns). If you still have the shutdowns and the error readings continue to appear then its likely the motherboard is reading wrong because the two psus should not have the same problem, but it is possible. If the shutdowns disappear but the errors dont then the motherboard is almost definitely reading wrong.
A 350W psu with a max output of 120W? Oh, of course, that doesnt include the +12V rail . What is the model number for your psu coz its easier to find out info on it that way as Aopen probably make more than one type of 350W psu?
EDIT: There are in fact 7 350W psus by Aopen :?
EDIT2: Does it have a large 120mm fan on the bottom or a single 80mm on the back facing out of the case? This would cut down the list alot if you cant find the model number.
well this is actually my 3rd power supply
but both were installed by the guy who made my computer so i dont have any extras
and ive had this problem for the longest time and i realize how hard it is to pinpoint why the computer is crashing (not rebooting) its as if someone pulls the plug
and it is completely random, my computer can be idle without running any programs or during a game, or during a movie...totally random
the model number is Z350-08ATA
and nothing in my events that indicates a reason to crash either
I realise that, but as I said the psu spec sheet says there is no -5V rail, or rather doesnt have any info on it like max/min load etc. Also like I said the mobo could have faulty sensors, I mean, if it fluctuated that much he should have dead components by now.
EDIT: I wondered what was up with your last post, since you quoted but said nothing. At least you fixed it
Try disabling the sensor for that rail in the BIOS, it could be the mobo is detecting an overvoltage that may not be occuring and shutting down. If it still shuts down then there is definitely something wrong with the psu or motherboard power regulators.
i disabled the 5v monitor in bios
and hmonitor (the program im using because i agree, asus probe blows)
still gives me the same readings for 5 and -5
the guy who installed the psu is a total moron and would just tell me something else is wrong and try to get more money...he said my last psu was the crash problem, and i trusted that and it still crashes with his "superior" psu :S
We're getting off-topic here. You said:
"I've tried replacing RAM, video card, heatsink, psu..."
It's not your RAM, video card or your PSU.
Your CPU temps are normal, so it's not your heatsink.
#1 - Try disabling the -5v sensor in BIOS.
#2 - Check North bridge controller for thermal paste
#3 - Consider replacing the motherboard (may have internal shorts)
#4 - Failing that, your CPU may be defective
well im hopefully getting a brand new rig soon anyway
so im trying to spend as little as possible on this one
but it would still be great if i could fix it
if its in need of a new mobo or cpu its not worth it in the end when i have my new rig
but if it was something with the psu that i could change to make it stable then i might as well
the only problem i knew of that would lead to a crash was the red readouts in my monitor program
and i wasnt too sure what they meant to begin with
ill ask a few friends if they have any psu's lying around to do a quick swap
if this just cant be fixed then time for that new rig