A bit worried

[s_kinton]

But a soundcard can't cause random reboots, can it ?

You'd be surprised!! Any driver for a piece of hardware or the hardware itself can cause random reboots, don't rule anyhting out just yet.

The voltages are:

3.3 Voltage: 3.280v
5 Voltage: 4.632v
12 voltage 11.368v

Those voltages don't look too good to me. That 12v line is quite poor for a new PSU, I'd be expecting 12.x from a high quality PSU.

Does the crash happen under load? When testing under load what are the rails dropping down to?

[sithlord3k]

When testing under load what are the rails dropping down to?

Ok, does this count as load:

watching a film, running winrar to decompress about 3 gigs worth of stuff, transferring 56GB from one drive to another, running file checker, and firefox... if so, then the 5+ and 12+ are still about the same

[moogle]

My volts on my P5K from Everest are

VCore - 1.43v
3.3v - 3.25
5v - 4.92v
12v - 12.10v

I am running firefox with a sheetload of tabs/pages open.

Under P95 x64 with the max heat power consumption option it's

VCore - 1.42v
3.3v - 3.23
5v - 4.80v
12v - 12.15v

So it probably is the PSU I think, if it's that low at sort of load states it may be faulty.