Quote Originally Posted by Biker View Post
Meh....

Yesterday afternoon my R3E BSOD'd with an IRQ not less or equal error and upon reboot has refused to boot ever since with the CPU LED next to the 24pin ATX connector constantly illuminated.

The cpu is known good (980x) and I have also tried 2 920's, 3 different psu's, 4 different ram kits and 4 video cards (all also known good).

Board was run at 4.0 ghz with really low voltages (1.22 QPI, 1.22 Vcore, 1.35 ram 1.18 IOH core)

The IOH and ICH were cooled by 120mm fans always since I first got the board. Their temps both maxed out in the low 50's so it is probably not a cooked IOH / ICH.

Bios at time of failure was 901.

I have tried clear cmos

I have pulled the battery and psu for ages

I have tried both bios 1 and 2

I have tried all the PCIe slots (and disabling the others)

All with the same result: no post



Questions:

Anyone else had this?

If you did have this, did you get the board to boot again?



I cannot see / smell any obvious signs of hardware failure but it looks like it is dead.
when you say the cpu is known good, have u tried it in a different mobo since the failure? i've had similar issues twice, first time was a failure on post after reset to defaults, second was a spontaneous reset while in windows. both times i had to RMA to the shop it was bought from, both times they replaced both mobo and cpu. mobos were definitely faulty, not sure whether they just replaced the cpus to be sure (but at £800-900 each i'm pretty sure they didn't do it on a whim).

never got any explanation for the failure, these were both shop-overclocked bundles, but they hadn't done anything too crazy with them (4.2G, 1.35Vcore/QPI). this 3rd bundle has been ok so far, hopefully it stays that way.