Standard DRAM Memory

[james54321]

My gigabyte board (EX58 UD3R) is seeing these memory modules as 8 timings and the modules are not booting up. I therefore need to manually input the timings for these modules, and there is very little info about this other than 9-9-9-24-1T. I am trying to run 12gb (3x4GB modules)

Could you please advise the correct timings for the following settings. the bracketed numbers are what i have been able to deduce so far.

Cas Latency Time  (9)

tRCD                         (9)

tRP                            (9)

tRAS                         (18)

tRC                            ?

tRRD                         ?

tWTR                         ?

tWR                           (9)

tWTP                         ?

tWL                            ?

tRFC                          ?

tRTP                          ?

tFAW                          ?

Command rate     (1T)

many thanks

many thanks

[norepli]

Hello,

Have you installed the latest BIOS update?

Have you tried setting your BIOS to "fail-safe" defaults?

Are your BIOS SPD options set to auto?

[james54321]

hello

Yes i have the latest bios, and when set to auto it was reading the memory as 8 and not 9 timings.

I think there maybe a problem with the on chip memory controller and wanted the memory timings to input manually.

if i could have the full memory timings that would be very benificial so i can enter them in manually

many thanks

[norepli]

Hello,

I cannot fill in the blanks for all those timing parameters; however, if someone from this forum can do that for you, they are going to get a nice Kudo from me! Anyway, while you are waiting for an answer, I just have to ask (because you did not mention this specifically) if you have tried testing these modules "one at a time" to see if you can boot?

[james54321]

Hi

Yes these modules will boot when inserted one at a time. The problem arises when trying to use 2 (boot 10% of the time) and never boots with all three. I was advised that the auto memory detect doesnt always works when using all three dimms hence wanting the details to enter the timings in manually as a i know this has been a problem with some x58 (intel i7 socket 1366) boards. 

thank you for your time and lets hope someone has the timings!

[norepli]

Hello again,

While you are waiting for those timings, I thought of something else you could try. Per the spec below, have you tried running dual-channel with 2 matching sticks installed in slots DDR3_1 and DDR3_4. If not, please give it a shot and see what happens.