crossfire causing restarts

[clayer]

hi

i have 2x 290x if i game in crossfire i get a random restart maybe an hour sometimes 3/4.
event viewer is saying kernal power error id 41

+ System

- Provider

[ Name] Microsoft-Windows-Kernel-Power
[ Guid] {331C3B3A-2005-44C2-AC5E-77220C37D6B4}

EventID 41

Version 2

Level 1

Task 63

Opcode 0

Keywords 0x8000000000000002

- TimeCreated

[ SystemTime] 2014-02-20T17:27:06.226808300Z

EventRecordID 105904

Correlation

- Execution

[ ProcessID] 4
[ ThreadID] 8

Channel System




- EventData

BugcheckCode 0
BugcheckParameter1 0x0
BugcheckParameter2 0x0
BugcheckParameter3 0x0
BugcheckParameter4 0x0
SleepInProgress false
PowerButtonTimestamp 0

can anyone shed some light on cause of this, i have lastest driver and full clean install used ddu.

 

[clayer]

no max temp low 50s im still thinking on the lines of power supply to when i done rebuild i broke the on off switch when filling loop maybe it damaged something else inside.
1200w is 18 months old and ive run it 24/7 could possibly be im not quite getting enough power due to degradation.

 

[clayer]

atm the oc is a mild 4.2 /xmp

i do not get bsod shuts down restarts no errors.

only found out by looking in event viewer.

 

[clayer]

the ram is only at 2133 using xmp i was very disappointed in the purchase of this expensive ram and top motherboard for it to only reach 2133 in xmp. and as im a novice at oc i would have no idea how to oc the ram i thought it would run at the speed i purchased out of the box.

 

[clayer]

ok reset bios to optimized defaults this morning.

played game for an hour or so with crossfire enabled had a reset after an hour of gaming no oc all default.

same error kernal power .

any advice

 

[clayer]

hi all jsut a quick update fitted a new 1200w super flower not had 1 restart in week although my old tested working obviously under load was the problem.

thanks for any help