This happened after a bios update on my Gigabyte GA-MA790X-DS4 mobo(F6 to F7C).
My Phenom II 720 didn't pass any of those stress test even at stock speed, p95 would fail after several hrs, IBT fails after 15th cycle and OCCT in 5 minutes.All of those failures pointed to an error in Core #2. I already tried re flashing it back to F6 bios but its still the same. Any possible reason why this happened? apart from bad bios..
No replies? I wish I have some more clues about this..
I ran memtest86+ and no errors were found, however when I changed my memory settings from 1066 to 800Mhz and ran 50x IBT and few times of OCCT/linpack...The core errors GONE!
This incident also happened before with my "good riddance" Athlon X2 7750 -it simply refused to work with 1066Mhz ram now this has also affected Phenom II? or the could it be the DDR2 memory controller has gone awry?
Have yoyu tried to up the NB frequncy? Also setting the RAM timiongs are really important for Getting 1066 to work correctly. Manually sett the timing to what the ram specifies. If that doesnt work bump the voltage up a notch, if still no worky loosen the timings slightly i.e.- 5-5-5-12 to 6-6-6-15
My OCZ2G10664GK should operates @ 1066 / 5-6-6-18 / 2.1v .. I got it replaced brand new- back from RMA when I thought it was bad (7750 was the culprit back then)..
but now I ran them @ 800mhz,5-6-6-18 2.1v - heck it won't stabilize at 5-5-5-18 @ 800Mhz. I still think the ram is fine, probably this mobo with its SB600 sucks LoL
- I guess I'll find it out after I get another mobo.
That 7750??, auw sorry, I sold it already not long ago..