Memory fails Orthos at stock settings !!!!

trackerman

I've been playing with Orthos and had a persistant fail after 15 or so seconds.

Here is the report:
Test 1, 4000 Lucas-Lehmer iterations of M19922945 using 1024K FFT length.
FATAL ERROR: Rounding was 0.5, expected less than 0.4
Hardware failure detected, consult stress.txt file.
Torture Test ran 0 minutes 5 seconds - 1 errors, 0 warnings.
Execution halted.

I have now discovered that I can get this failure at default BIOS settings by just changing my memory timings from 5,6,6,15 to 6,6,6,15 !!!!!!

This seems VERY strange.
I thought that 6,6,6,15 would RELAX the demand on the memory.

Any advice ? does my memory suck ?

Kit is as follows:
E6600
Asus P5B Delux
OCZ Gold XTC 6400 (2GB)


Thanks

Anti

Run memtest x86 to see if you get the a error

SouperComputer

add juice to the RAM?

trackerman

Mem voltage is at the max allowed for that Brand (2.1V)

I'll run memtest later today.

With further testing I found that 5,6,6,18 was enough to allow me to overclock all the way up to 3.6G (400 x9) and still pass ORTHOS. But I can only do this when memory speed is set to the lowest option.


Trackerman

po0k

fried some cells in the dram?