Ram Speed questions!

[punyon]

Out of curiosity, have you tried XMP with just 3 modules instead of 6 ?

 

[dorsetknob]

Out of curiosity, have you tried XMP with just 3 modules instead of 6 ?

In case you are unaware ( and not reading Entire thread )
Its an EVGA SR2 Duel CPU motherboard
There are Slots for 6 Ram modules PER CPU (total of 12 )

 

[FireFox]

Its an EVGA SR2 Duel CPU motherboard

He has missed that part

 

[punyon]

In case you are unaware ( and not reading Entire thread )
Its an EVGA SR2 Duel CPU motherboard
There are Slots for 6 Ram modules PER CPU (total of 12 )

My bad. Didnt notice the dual cpu part. Had similar experience on single cpu board with fully populated banks. Didn't play well with xmp. Especially if the RAM is dual sided.

 

[FireFox]

I have it set to 1.5V, one hour running MemTest and no crash

 

[FR@NK]

I have it set to 1.5V, one hour running MemTest and no crash

At what speeds and timings???

 

[FireFox]

At what speeds and timings???

1600 9-9-9-24 T1

 

[biffzinker]

Did you ever check if you might of manually changed the memory ratio or the memory ratio was changed by the motherboard could of been the reason for the sticks running @ 750 MHz. I've seen that memory clock speed reported as DDR3-1500 in UEFI on my Asus Z97-E when I was looking through DRAM reference 100/133 MHz base clock were your allowed the ability to change the ratio.

Edit: I skipped the second/third page so I may of missed it.
Edit 2: I looked through page 2/3, and seen you had photos of the BIOS option/s on page 2 I was asking about so nvm my above post.

 

[FR@NK]

1600 9-9-9-24 T1

You should be able to run them abit faster then that. They are at stock 1866 9-10-9-28 T1 @1.5v.

 

[FireFox]

You should be able to run them abit faster then that. They are at stock 1866 9-10-9-28 T1 @1.5v.

Yeah i know they can run faster, but for that i need to increase the bus speed and that's mean CPU speed will be involved too and at the moment i don't have an adequate cooler to run the CPUs above 4.3GHz.

 

[FireFox]

Today i have done some test to see how much i should increase the Bus speed in order that the Ram runs at 1866.

Here are the results:

I need to increase the bus speed to 186 but automatically the CPU's will run at 5.0GHz

 

[biffzinker]

CPU multiplier at 23x186 would that work? I looked up your Xeon @ CPU-World for default set multiplier.

 

[FireFox]

CPU multiplier at 23x186 would that work? I looked up your Xeon @ CPU-World for default set multiplier.

Yes 23x186 that's the right setting but as i mentioned CPU's will automatically run at 5.0GHz, the screenshot says it all.

 

[biffzinker]

Nvm then, so you would rather not lose turbo mode correct?

 

[FireFox]

Nvm then, so you would rather not lose turbo mode correct?

Exactly.
If i disable turbo mode my CPU's will be constantly running at whatever speed i decide to overclock it and i don't like that.

Edit: for 24/7 i prefer to keep turbo mode, for benchmark i can disable if i have to.

 

[FR@NK]

Stay with 1600 memory speed but see if you can get tighter timings like 8-8-8-24 t1