DDR3 help 1600 at 1.5V

[darckhart]

To guarantee DDR3 1600 at 1.5V 9-9-9-24, do I essentially have to buy the next level up? While some modules can do it, it seems most can only achieve 1600 via XMP (which probably entails some voltage bump). However, if I get say 1866 or higher, the chances of 1600 operating at 1.5V is higher?

Lower voltage is better because I will be trying to max out all the slots.

Thanks

 

[VirtualLarry]

What about those GSkill Sniper low-voltage modules, that claim to be able to do DDR3-1600 at 1.25v or something like that? Tried some of those?

 

[AkumaX]

i don't think XMP necessarily means a higher voltage, let me double check later on my 1600 C9 1.5v dimms

 

[darckhart]

@virtuallarry: oh i didn't know they had consumer versions of low voltage. i'll check it out.

Edit: oh well g.skill wouldn't give me the timings and volts at different speeds (1333, 1600, 1866) for that model

@akumax: oh great thanks. that would be really helpful!

 

[Blain]

Lower voltage is better because I will be trying to max out all the slots.

Don't get me wrong, I'm a low voltage fanatic, BUT...
Why would voltage rating make any difference at all in maxing out your DIMM slots?
Is your power supply on it's last leg or have very low wattage output?

 

[AkumaX]

yeap, JEDEC only recognizes it as DDR3-1066 (PC3-8500), but XMP correctly recognizes it as DDR3-1600 (PC3-12800) @ 1.5v

 

[darckhart]

@akumax: thanks. i checked my pc at home and got the same results. whew.

@blain: since the imc is on the cpu now, the more dimms populated with higher voltage, the harder it is to oc with tight timings and high speeds. that's just for home desktop, but if you consider workstations and servers, yes, large dimm capacity coupled with high number of dimms starts to put stress on it, hence the LRDIMMs.