GA-MA78GM-S2H rev 1.1 not running 1066 mhz

[fern]

hi i just bought 2 pairs (8GB) of Trident 1066mhz 1.8volts

F2-8500CL5D-4GBTD CL5-5-5-15

its doesnt run 1066 when i had everthing deafult.

when i set the ram into 533x2mhz in bios. it will not let me go to the OS it keeps on getting balck screen (no voltage increment!)

im using a X2 7850 at stock speeds.

right now its stable a ddr2-800 mode @ 5 5 5 15 timings 1.8 volts

thanks,

Fern

[GSKILL TECH]

Try these settings:

In MIT,

DRAM Configuration (submenu)
DDRII Timing - Manual
CAS Latency - 5T
RAS to CAS R/W Delay - 5T
Row Precharge Time - 5T
Minimum RAS Active Time - 15T
1T/2T Command Timing - 2T
TwTr Command Delay - 3T
Trfc0 for DIMM1 - 127.5ns
Trfc2 for DIMM2 - 75ns
Trfc1 for DIMM3 - 75ns
Trfc3 for DIMM4 - 75ns
Write Recovery Time - 6T
Precharge Time - 4T
RAS to RAS Delay - 5T

Set Memory Clock - Manual
Memory Clock - 1066
DDR2 Voltage Control - +0.2V
Northbridge Voltage Control - +0.1V

Save and exit and your computer should be running smoothly. Let me know if that works.

Thank you
GSKILL SUPPORT

[fern]

thank you sir!

i acknowledge your fast response.

i will try this out later in the afternoon when im home from work

i will let you know asap

thanks.

Fern,

[fern]

i tried but no luck

i noticed that my

TwTr Command Delay - is only upto 4T only

Precharge Time - 3T only


after seting it up as what you have said and including the limitations i mentioned above

the post will revert back to ddr2 800 and will load windows sucessfully.

Thanks,

Fern

[Tradesman]

Are you running the F8 BIOS? Might raise the tRFC one level higher than what GSkill suggested and/or try relaxing the timings to 6-6-6-18.

[fern]

yes im running the F8 bios.

lim nto sure how to raise the trfc

Trfc0 for DIMM1 - 127.5ns
Trfc2 for DIMM2 - 75ns
Trfc1 for DIMM3 - 75ns
Trfc3 for DIMM4 - 75ns

thanks,
Paul

[GSKILL TECH]

I wanted to see if they would run at tight settings, but I guess not. Try these, they should work.

Trfc0 for DIMM1 - 195ns (whichever is above 127.5ns, not sure if you have one in between)
Trfc2 for DIMM2 - 127.5ns
Trfc1 for DIMM3 - 195ns (same as the first one)
Trfc3 for DIMM4 - 127.5ns

Thank you
GSKILL SUPPORT

[fern]

still did not work.

btw.

im going to try these all of these rams in my friends rig

its a gigabyte UD3L with a E5300 proc.

will it work without any adjustments?

[GSKILL TECH]

1T/2T Command Timing - 2T
TwTr Command Delay - 4T
Trfc0 for DIMM1 - 195ns
Trfc2 for DIMM2 - 75ns
Trfc1 for DIMM3 - 127.5ns
Trfc3 for DIMM4 - 75ns
Write Recovery Time - 8T
Precharge Time - 3T
RAS to RAS Delay - 5T

Simply depends on what the board picks up for AUTO values, sometimes they are good, sometime they aren't so you have to adjust manually. It's always better manually anyway that way there are no variables.

Thank you
GSKILL SUPPORT

[fern]

its still doesnt not work.

i was able to run it at 5 7 7 something @ 4 gigs but when i adjusted
it to 5 5 5 15 it becomes unstable at desktop.

[GSKILL TECH]

What type of instability are you having? I need to know specific problems so I can figure out the reason why it is doing that. Try setting Write Recovery Time - 10T and see if that will help.

Thank you
GSKILL SUPPORT

[fern]

What type of instability are you having? I need to know specific problems so I can figure out the reason why it is doing that. Try setting Write Recovery Time - 10T and see if that will help.

Thank you
GSKILL SUPPORT

when i log inn to windows. i noticed that my icons disapear and sometimes when i login my screen turns black after that.

[GSKILL TECH]

Is there any way you can post screen shots? That way I can see exactly if you have anything set incorrectly. When did you purchase the memory? You may simply want to get a new set, since you should not be having these issues with these settings. For tRFC, set them at

Trfc0 for DIMM1 - 195ns
Trfc2 for DIMM2 - 127.5ns
Trfc1 for DIMM3 - 127.5ns
Trfc3 for DIMM4 - 127.5ns

What is your memory voltage? Set it at 2.0V and 2.1V and see if that will help.

Thank you
GSKILL SUPPORT