The Official Opteron 939 Overclocking Thread

[eva2000]

yeah, mine is definitly one of the lesser ones unfortunately. it loves voltage though

in summary:
max memtest boot: 2944mhz
max memtest stable for 1 pass: 2862mhz

max 8m = 2724.6mhz
max screen = 2901.7mhz

i didn't have the patience for 32m, so here's the max 8m shot:
http://www.xtremesystems.org/forums/...id=38720&stc=1
subtract 9mhz for max 32m

here's max screen:
http://www.xtremesystems.org/forums/...id=38721&stc=1
i validated it too, but unfortunately i hit f7 before cpu-z updated, so the validation is only 2894mhz
http://valid.x86-secret.com/show_oc?id=43936

thanks just the info i wanted...

with my Opteron 144 0536 GPMW

so far memtest looks like this all 1:1 mem/cpu

AUTO Vcore = 2826mhz
1.425v = 2835mhz
1.45v = 2880mhz - 6 full loops
1.475v = 2906mhz 6 loops so far (this is 9x323mhz 2.5-4-3-7 which is the known limit of the ram on FX-57 so interesting to see how much higher it can go cpu and mem wise from here)

1.475v = 2926mhz running memtest so far at 9x325mhz 2.5-4-4-8 so far okay

1.50v = 2944mhz 9x327mhz 2.5-4-4-8 at 2.9v vdimm = test #6 errors - cpu related... so guess this is the point where more vcore is needed heh - but will try 1.50v but up vdimm to 2.95v first to see if it's mem before raising vcore

1.50v = 2944mhz 9x327mhz 2.5-4-4-8 but with 2.95v vdimm passed test #6 no errors, so was vdimm not vcore - so far 2 full loops error free

1.50V = 2961mhz 9x329mhz 2.5-4-4-8 at 2.95v so far memtesting okay passed 1st full loop, but 2nd loop at test #8 memtest error, so next stop 1.525v vcore to see if it's vcore of mem/vdimm

1.525v = 2961mhz 9x329mhz 2.5-4-4-8 at 2.95v passed 1 standard loop and a half

1.525v = 2980mhz 9x331mhz 2.5-4-4-8 at 2.95v booted into memtest and running up to test #5/6 errors now so more vdimm or vcore ?

1.525v = 2980mhz 9x331mhz 2.5-4-4-8 at 2.98v vdimm same test #5/6 errors, so guess time to run 180 mem divider

1.525v = 2980mhz with 9x331mhz with 180 divider mem @298mhz 2.5-4-4-8 at 2.95v standard loop 1st pass error free running up to test #5 in 2nd loop fine so far - 3ghz looks possible you'd think