Does F3-12800CL9T-12GBSR2 have XMP?

[mikestjames]

Do these have XMP profile?

G.SKILL Sniper Gaming Series 12GB (3 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9T-12GBSR2

Is this set compatible with EVGA E758-A1 (EVGA X58 Sli) mainboard with Core i7 920 (LGA-1366) processor?

I bought a 24gb set (F3-12800CL9T2-24GBRL) but my board/processor would only boot 12gb no matter what I tried. 24gb wouldn't post, though ALL of the DIMMS would boot 12gb in any combination of the 6 into a set of 3 in slots 1-3-5. Going to RMA them and get a 12gb set instead. But I want XMP. Will the G.SKILL Sniper Gaming Series 12GB (3 x 4GB) mentioned at the beginning have XMP? I don't see XMP mentioned anywhere in the web descriptions at GSKILL or at NewEgg. Also, they are said to use 1.25v...seems very low. Any comments appreciated. I need to buy now.

[mikestjames]

1.25v? What is disadvantage of low voltage?

Trying to pick a good, fast, reliable 12gb kit for my EVGA X58-A1 MB and Core i7 920 (1366) combination.

G.SKILL F3-12800CL9T-12GBSR2

These are unrated on NewEgg. I am wondering about the low power...are there disadvantages to RAM that runs on 1.25v under XMP? Should I be looking at RipJaws at 1.5v or something even higher?

[GSKILL TECH]

Yes, all G.Skill memory better than DDR3-1333 CL9, will have XMP Profile embedded.

I would suggest a 1.50V or 1.60V kit.

http://www.newegg.com/Product/Produc...rder=BESTMATCH

Thank you
GSKILL TECH

[Tenchi]

Why would you suggest a 1,50V-1,60V Kit?

I have a 980X with a Asus REIII and think about to choose

two Kits of F3-12800CL9T-12GBSR2 = 24GB

I think:

less power consumtion is better

What do you think?

[GSKILL TECH]

That motherboard and CPU doesn't support low voltage very well, so you may need to operate it at a slightly higher voltage anyway. If you would like to attempt two kits, that's OK, hopefully the two kits can match well. The 980X should minimize your possible issues.

Less power is better, but with memory, it's not much considering the performance gain you can get from using more voltage.

Thank you
GSKILL TECH

[cfarr]

more volts

I bought these hoping to get more speed by easier voltage increase. I have a PX658-D Premium MB, 980X CPU. What is a safe yet effective over voltage for this combo?

[Tradesman]

The voltage will play a part in what the sticks run, yes, but as you increase the speed of the sticks you'll also have to adjust the timings and the higher you go, the looser the timings and the less performance increase. I'd suggest getting it stable at 1600 on the sticks then could try 1866 at maybe 10-9-10-30 2T or so and see what voltage is needed there, maybe 1.4 or so, then if that's stable could try faster, but may want to Benchmark along the way, at some point they may run and be stable, but provide less performance than the 1600 native or a nother lower freq than the end result (i.e. might be able to hit 2133 but at lower performance levels than even 1866