F2-8500cl5d-4gbpi-b + ga-ma770 ud3

[kaycee]

hi there,
been try for almost a month to make it work on 1066MHz and failed...
blue-screen, restarts and black screen...

i followed the guide in http://gskill.us/forum/showthread.php?t=1628
but yet ain't working...

CPU is AMD Phenom II 955.
800MHz is working fine tho...

[Tradesman]

Do you have your command rate at 2T (or 2N)? If not, try that, if no joy, could you post your BIOS settings
?

[kaycee]

these are the settings i tried:
Set Memory Clock - Manual
Memory Clock - x5.33 1066MHz
DCTs Mode - Unganged

System Voltage Control - Manual
DRAM Voltage - 2.1V

DRAM Configuration (submenu)
CAS# Latency - 5
RAS to CAS R/W Delay - 5
Row Precharge Time - 5
Minimum RAS Active Time - 15
1T/2T Command Timing - 2
TwTr Command Delay - 4
Trfc 0 for DIMM1 - 127
Trfc 2 for DIMM2 - 127
Trfc1 for DIMM3 - 127
Trfc3 for DIMM4 - 127

Write Recovery Time - 8
Precharge Time - 4
Row Cycle Time - 27
RAS to RAS Delay - 4

[Tradesman]

Do you have the sticks in slots 1,2, if so might try 3,4. Could also try raising vCore voltage.

[kaycee]

can u plz give me exact specs ? vCore voltage etc' ?
i raised it up to 1.5v

[G.SKILL]

I don't think you need to increase vcore voltage since you didn't overclock CPU
please try to increase NB and HT to 1.4 to 1.5v to improve the stability while running DDR2 1066



G.S

[kaycee]

ok
and the memory settings ? 5-5-5-15 ? 2.1v ?

[G.SKILL]

yes


G.S

[kaycee]

k...
i changed the followings:
NB Voltage control 1.5v
SB/HT Voltage control 1.5v
5-5-5-15 2.1v
and got blue screen...

[NemesisChild]

Did you try each stick individually?

I'm thinking that you may have a bad module, there should be no reason why you can't run at 1066.

[GSKILL TECH]

Try increasing row cycle time to 30 or 33.

Thank you
GSKILL SUPPORT

[kaycee]

k i tried that:
changed the row cycle time to 30 and 33
tried each stick alone and together and still got blue screens \ hangs while OS is loading
i also set 5-5-5-15 533MHz with 2.1v to memory and 1.5v to CPU and NB

[GSKILL TECH]

What slots do you have them installed in? Due to a processor limitation, you can only use one DIMM per channel.

What you can do to operate them in dual channel and get similar speeds is set them to DDR2-800 with 4-4-4-12 timings. The memory performance would be the same as DDR2-1066 5-5-5-15.

Thank you
GSKILL SUPPORT