F2-8500CL5D-4GBPI + GIGABYTE GA-MA770-UD3 rev2.0

[pa_sha_dow]

Model of the motherboard: GIGABYTE GA-MA770-UD3 rev2.0
Model of the memory: F2-8500CL5D-4GBPI
Model of the CPU: Athlon II X2 240


Excuse for my English.
Problem with stability of memory on frequency 1066 with timings 5-5-5-15.
I have read many messages at a forum, but any has not helped me.
That I did that:
1. Has update BIOS to the last version FF.
2. Has checked up memory on frequency 800 - all well.
3. Testing each stick individually with memtest on frequency 1066 - all well.
4. Test both stick with memtest on frequency 1066 - all badly.

As I have understood guidelines are reduced to a power raising on NB and SB, tried - there is no stability.
Tried different combinations subtimings which found at this forum, helps nothing.
Tried to expose subtimings on a maximum - all the same there is no stability.
Probably someone has a same motherboard and the same memory, will impart experience, or company GSKILL has a ready solution of this problem...
In advance many thanks.

[NemesisChild]

Did you manually set the DRAM voltage from 2.00 to 2.10v in the bios as well?
Try placing both sticks in the other channel (the two slots furthest away from the CPU).
I'm sure one of the G. Skill techs will respond to your post shortly.

[Tradesman]

Do you have the command rate at 2T? What is your tRFC? What is your vCore......
actually can you just post your BIOS settings so we can see what might be off.

[pa_sha_dow]

Did you manually set the DRAM voltage from 2.00 to 2.10v in the bios as well?
Try placing both sticks in the other channel (the two slots furthest away from the CPU).
I'm sure one of the G. Skill techs will respond to your post shortly.

I tried to set manually
DRAM Voltage Control = 2.0V, 2.1V, 2.2V
NB Voltage Control = 1.2V, 1.3V
SB/HT Voltage Control = 1.4V
All the same there are errors

As far as I understand from manual, slots the nearest to the processor too are different channels

Now memory is installed in yellow slots, each stick in different channels




From manual

The four DDR2 memory sockets are divided into two channels and each channel has two memory
sockets as following:
Channel 0: DDR2_1, DDR2_3
Channel 1: DDR2_2, DDR2_4

[pa_sha_dow]

Do you have the command rate at 2T? What is your tRFC? What is your vCore......
actually can you just post your BIOS settings so we can see what might be off.

Yes CommandRate are always 2T
By default tRFC = 127 / 127, I try 195 /127, 195 /195 - nothing...
By default vCore = 1.425V and I did not change it

Photos will be in 1 hour

Photos of my sticks

[pa_sha_dow]

Photos of my BIOS

Photos of my BIOS, all settings are default and EPP= Enabled

[pa_sha_dow]

Results of my tests

At different timings, in the program memtest quantity of errors the miscellaneous, any communication between timings is, but to pick up their combination at me it is impossible.

For example some errors





memtest displays timings 8-5-5-15, though actually 5-5-5-15

Very much I hope for your help

[pa_sha_dow]

Try placing both sticks in the other channel (the two slots furthest away from the CPU).

I have tested units in red slots, there is no stability.

[pa_sha_dow]

Since anybody cannot help, I will return memory to the seller...