Thursday, June 11, 2009

OverClocking from RM-72 to RM-74

Edit:
The following does not work although CPUZ claims it works, it doesn't show any difference in Intel burn in test.
Probably the reason is due to AMD Factory Locked Multiplier so FID doesn't work.

I tested a while ago stable voltages that pass LinPack are
1.075V @ 2100MHZ
0.875V @ 1050 MHZ
0.750V @ 525 MHZ
What I actually believe is RM-72 is actually RM-74 crippled by 100MHZ
Based on the Processor Specification RM-72 is identical to RM-74 lest the Clock Frequency.
Even the TDP is the same.
So I used K10STAT to increase the FID to 14 from 13.
It passed all LinPack tests without the need to increase the voltages.
So now my RM-72 became RM-74.
1.075V @ 2200MHZ
0.875V @ 1100 MHZ
0.750V @ 550 MHZ
You need to pass-ClkCtrl:2 argument to overclock.

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