ASUS M3A78-T and TWIN2X4096-8500C5

[cybermachi]

Hi all,

 

i just put the system together, the system boots up fine with no problem, the only thing i noticed is that RAM is taken as 800MHz insted of the 1066MHz.

 

i double checked with the Memory spec at vendor site and it's verified to work at 1066Mhz 5-5-5-15 Timing with 2.1V

 

i went to the motherboard bios: [Advanced] -> [JumperFree Configuration]

 

Settings:

 

AI Overclocking option to "Manual"

 

DDR Voltage: 2.10

 

then i went in to [DRAM Timing Configuration]

 

Memory Clock Mode: "Manual"

 

Memclock Value: 1067 (for some reason insted of 1066 it says 1067 in

the option, could this a problem?)

 

2T Mode :"Auto"

DRAM TIming Mode = Both

 

CAS latency = 5

tRCD = 5

tRP = 5

tRAS = 15

 

 

windows loads up fine, BUT when i run prime95 with in 4-5 seocnds i get error and it stops.

 

and when i turn to back 800Mhz in RAM the prime95 works perfect.

 

is there any problems with RAM and motherboard or CPU?

 

please help

[cybermachi]

hi all again,

 

 

i got the System stable at memory timing 4-4-4-12 @ 2.1V

 

anyone else got any idea y the 1067Mhz wont work.

 

i read that old Phenom had memory controller problems but Phenoms 2 had his fixed.