GA-X79-UP4
Core i7-3820
Patriot Viper Xtreme Division 4 Series 16GB (4 x 4GB) DDR3 2133MHz
Seasonic 600W PSU
bios F3p
ok...i have gotten this board running for a few days now, and i have run into all kinds of flakey behaviour
1) there appears to be no possible way to run this memory at 2133 or even 1866 mhz, even at full voltage and increased IMC and/or Vtt or X.M.P. profile
2) at 1600mhz in bios, the computer often boots in 1333mhz 90% of the time, and working settings that are reproduced in BIOS will not provide duplicate results
3) if you raise the BClk by as little as 2, it proceeds to knock out the intel drivers for both the onboard LAN and my Intel Pro/PT 1000 gigabit nic for no apparent reason
the only thing that HAS worked is raising the multiplier to 43... (i.e. 4.3 Ghz)
and the only thing that appears to cause 1600mhz to actually boot is to use the outdated and clunky Easytune software to set 1600mhz and then reboot
while the system is perfectly stable at 4.3ghz/1600mhz, there is alot of weird behaviour here
as it seems there is no Bios update in over 6 months now, these x79 boards seem well behind in updates compared to Z77 chipset and such
thanks for any thoughts or ideas anyone here has on these issues
I had the same problem with a similar set - went backwards and forwards between Patriot and Gigabyte - in the end it seemed to be that Patriot were using an updated version of XMP with some of their latest kits and the GA-X79-UP4 didn't like it at all - in my case with my kit and the shipped BIOS I had to actually wipe the CMOS to get the board to boot again if I enabled XMP in the BIOS... In the end I just left the kit running at 1600 as even with manual settings I couldn't get it to run at anything faster without being VERY ropey and never at the specc'ed 2133MHz...
Haven't tried XMP since, but now I'm on F3u and since you seemed to have some luck with F3t I might be tempted to give it another go...
well i upgraded to the F3t beta bios, most of my memory issues went away
but...
theres nothing i can do to make this run at 2133 any more
i did get it to work for a while, but it wasnt stable
so, i decided to try to reduce latency which is higher for the quad-channel boards
so i have gotten 9-10-9-28- 128 1T working rock solid at 1.65V ...this has latency down to 21.5ms in Sisoft Sandra
also the jump from 1666 to 1866 is the last one with a reasonable performance increase...
after that the percentages get pretty small
one thing i ran into, i had to use EasyTune in some instances to get ram speeds about 1600 to 'stick'...try it if you have this problem
good luck
P.S. it still requires CMOS reset if you set XMP on F3t...
i may take a look at F3u...thanks for that info