ADATA DDR3 1600 CL-9-9-9-24 won't post

[sharpT]

I have a system that works in the following combo @ 4.0 GHZ:

-GA-870A-UD3
-AMD Phenom II X6 1055T.
-OCZ GOLD DDR3 1333 CL-9-9-9-33

CPU Freq = 4000 MHZ
FSB freq = 286
DRAM Freq = 762
FSBRAM ratio 3:8
CAS CL=9
tRCD =9
tRP=9
tRAS=30
tRC=33
Command Rate = 2T

However, after replacing only memory with ADATA DDR3 1600 CL-9-9-9-24 in thinking that it may help my performance and stability, the system failed to post. MB doesn't seem to like ADATA DDR3 1600 and It's never able to post successfully at the OC config mentioned above. GA-870A-UD3
motherboard has dual BIOS, if Oc'ed one fail to post, the default BIOS kicks in. Basically, I can't OC the system with this memory.

What I found out is that ADATA DDR3 1600 seems to work ONLY at default setting (FSB=200 and DRAM Freq = 800).

I tried to change Command Rate to 1T and many others. But none of them seem to help. So I run out things to try.

Any suggestions? Was I under some false assumptions?

Thanks!

-Sharp

 

[henydiah]

- safe your Oc stable with OCz ram in bios.

- test your ADATA ram with memtest86+, if all clear , replaced install RAM must unplug power from PSU and under default System (clear Cmos again).

if all you do it ... and cannot Oc , it's mean your Ram ADATA not worth with mobo GA-870A-UD3