Originally Posted by joeybuddy96
After my earlier post with two sticks http://www.overclock.net/t/1460028/amd-kaveri-a10-7850k-overclock-guide/440#post_21957956
, I decided to do the same thing with four sticks.
Notes that are the same as with the previous testing:
Warning: Spoiler! (Click to show)
Here are my settings with two sticks of 2400MHz 8GB Team Xtreem on an Extreme6+ with a 7850K, stock heatsink, and a XL R2 case (I left the side cover off for testing since I wanted to be able to see the error codes). Keep in mind that none of this is under load--it's idle in the UEFI, without an OS installed. It more accurately represents the maximum the parts can achieve with stock settings. I haven't gotten to OC'ing my GPU, so that's going to affect thermals too.
ASRock UEFI settings (read from top to bottom matching the format of the UEFI):
CPU OC Mode
44 (Returned after leaving the system at the UEFI to find it locked up with Dr. Debug error code 0d, so I lowered it to 44.)
1.2875V (got a screen flicker on transition into the UEFI at 1.275V, and after another 0d, this was one of the settings I brought back up.)
XMP 1.3 Profile 1
DDR3-1866 (50'd on previous settings copied from post #447 on 2400 and 2133; 4F'd on 1903 and 1884; the DDR3 can be indirectly set higher than 2400MHz by raising the APU/PCIE Frequency)
1.66V (I don't see any reason to go lower. That's its factory rating--if it dies, it won't be because of the voltage. Update 3: after I came back to a 0d, this was one of the settings I put back to its higher setting for stability.)
5 (ASRock's minimum setting) 8 (C7'd at 7) 9 (C7'd at 8; tried it with 31 tRAS and 43 tRC and got the same result) 8 (4F'd at 7) 15 (ASRock's minimum setting) 2T (34'd at 1T) 25 (4F'd at 24; also stable when lowered along with tRAS to 26 (RAS to CAS Delay) + (RAS Cycle Time) + (2 clock cycles))) 5 (ASRock's minimum setting) 300ns (C7'd at 160ns; The Extreme6+ doesn't allow settings other than the pre-defined increments) 4 (Again, ASrock limitation; it cannot be set lower than 4) 5 (06'd at 4) 4 (the Extreme6+ doesn't allow settings lower than 4) 12 (ASRock's minimum setting)
Temperatures average CPU 63C and M/B 34C.
Here are my system specifications. Note that Sheet 2 is the relevant page.