skt1155 and memory voltage?

[paradisiac]

so whats the deal with SB only liking 1.5v-1.55v? what will happen with my 1.64/1.65v ram? instability or less overclocking potential?

 

[paradisiac]

mine have been running fine for a week now with my G620, so it should be ok when my 2500k comes on monday, or should i play with the timings to get the voltages down?

 

[paradisiac]

I believe the risk of higher memory voltage is long term reliability (ie CPU life). Personally I would spend the (most lilely very small) time required to get the voltage within spec (even if that means dropping the frequency down to 1333MHz - the real performance drop is tiny).

I would suggest running CPU-Z and looking in the SPD tab - this will show you what profiles your RAM is rated to run at. Since it is a DDR3 kit then more than likely one of these rated profiles will use a voltage of 1.5V.

they are 1333mhz anyways

but this is even more confusing :

Specification Content
Suitable for : Desktop PCs
Module Type : 240Pin Unbuffered DIMM Non ECC
DRAM Density : 128x8,256x8
Data transfer bandwidth : 10,664MB/Sec (PC3 10660)
CL-value : 9-9-9-24
Working voltage : 1.5V±0.075V
PCB : 6-layers PCB
Extra features : Yes
Warranty : Lifetime warranty

so why does the XMP and bios auto run it at 1.64/1.65v?

 

[paradisiac]

Ha, that is pretty funny.

In that case you should have no issue running that kit at 1.5V and with a sandy bridge system.

As for why XMP sets it to 1.65V, I have no idea. Does this setting achieve tighter timings than 9-9-9-24 @1.5V?

nope, still 9-9-9-24 so i guess i just manually set it to that and drop the voltage and im good to go?
but i have noticed in the SPD tab it says it should be 9-9-9-25 think something isnt detecting it right.

 

[paradisiac]

Aye, based on those specs from the manufacturer you should be able to enter the settings manually and not have any trouble.

awesome, had a proper panic attack when i read my ram might be too high a voltage after shelling out on all my bits (ram was recycled from my old AMD system)

 

[paradisiac]

set it to 1.5v and all seems good not sure why it doesnt do that by default is it worth trying to get anymore from my ram like 7-7-7-21 or will it not make a huge difference?