12V Rail and Computer Crashing

xenzaka

Distinguished
Dec 14, 2008
12
0
18,510

9950BE Phenom X4 2.6GHz 125W
ASUS Crosshair II Formula
1 x SATA DVD Reader
1 x SATA 1TB HDD
1 x SATA 200GIG HDD
2 x (2048MB) Kingston HyperX PC8500 @ 800MHz 6-6-6-18 @ 2.0V
Antec 500W PSU Neo HE


The problem:
An audible click then crash, spontaneous, more spontaneous then you could imagine, during porn, no, kidding; during homework, during games, during system-idle, you have no idea how irritating this is.

Did some research:
12V Rail renders 17A Max

My "highly complex mainboard" as Asus proclaims; requires atleast 20-22A to have any sense of stability.

Let's describe the deadly crash

There's a "click" and everything dies, monitor turns off, no errors on my special LCD device that came with the mainboard, the LEDs, however, remain lit on the mainboard. There are no other noises besides a simple click, and everything is off.

Sometimes it's fully stable (usually at night when my room is warmer then usual)

I have no PCI cards aside the sound card that came with the MOBO. The RAM is compatible, everything is compatible.

BIOS is fully updated. Honestly? I've spent hours trying to resolve this, even returning the RAM and purchasing my bad ass Kingston sticks :D

IDK how the hell my computer is running if the amps can't suffice my great processor and mainboard needs, so, i'm totally stumped.

Can someone help / explain to me in-depth this whole "12V rail" nonsense? I just don't want to have to return what's potentially a GREAT mainboard.

I plan on purchasing an Ultra X3 1000W PSU to replace the Antec, I just want to know for sure that this is simply a PSU problem and not a motherboard problem.

Thoughts? Opinions? This is my first build, I'm using Vista64, please don't flame me for using Vista, it's irrelevant anyway.

I appreciate all time and effort upon replay, very much so =)

Take care :]


 

sdrac

Distinguished
Mar 5, 2007
195
0
18,680
Took a quick look at your boards user manual - I didn't find anything that said you need 20-22A for the system to be stable. Where did you find that?

You PSU is a decent unit. Its got 3 12V lines with 17A max on each. Across all three you can pull no more then 38A (see http://www.pcper.com/article.php?aid=187&type=expert&pid=1).
One line is dedicated to the cpu, another to the mainboard and the other to the rest of the system.
You don't say what kind of GPU(s) you have in the system??
That might possibly be your issue.

Detail the GPU's and anything else you have in the system and we'll go from there.

sdrac