GA-P55-UD5 & 2xF3-12800CL7D-4GBRH problem

[advapi]

Hello,
today a new kit of F3-12800CL7D-4GBRH arrived tu me, I installed them on my GA-P55.UD5 (f10 bios, last official one) and I got a surprise... first this kit has got 1.65V on the ram label while my other kit (taken 1 year ago, is 1.6V)

Even CPU-z shows different values : forst kit does:

• 609Mhz (JEDEC #4) 8-8-8-22-30 @1.5V
• 685Mhz (JEDEC #5) 9-9-9-25-34 @1.5V
• 761Mhz (JEDEC #5) 10-10-10-28-38 @1.5V
• 800Mhz (XMP-1600) 7-7-7-24-34 2T @1.6V <-always used this

The other kit (verified always F3-12600CL7D-4GBRH) has got those values :

• 533Mhz (JEDEC #2) 7-7-7-20-27 @1.5V
• 609Mhz (JEDEC #4) 8-8-8-22-30 @1.5V
• 685Mhz (JEDEC #5) 9-9-9-25-34 @1.5V
• 800Mhz (XMP-1600) 7-7-7-24-34 2T @1.650V

The fact is that if I run it with xpm activated (and no overclock, so BLK 133) I can only see the old 4GB.... If I set the ram to 1333 it detects the 8GB (using the x12 I got 1600 but with rates of 11-11-11)

What's wrong?
Thanks

[advapi]

toc..toc...

[GSKILL TECH]

With XMP, you may need to raise QPI/VTT Voltage.

With x12, simply set timings and voltages.

Slightly different chips may be used, which is why the new one is 1.65V.

Thank you
GSKILL TECH

[advapi]

Thanks for your answer...but can I use 1.65v on the 1.60v? Do you think I can oc them with this "problem"? Rhanks

[GSKILL TECH]

Yes, 1.60V-1.65V is no problem. Doesn't hurt to try oc, so go ahead. If it turns out they are too much different, then you can send them in for new replacements that should work well together.

Thank you
GSKILL TECH