**Official DFI LanParty UT 790FX-M2R Review/Overclock/Guide Thread**

[techtrancer]

Hi

I got an DFI UT 790FX-M2R

Does anybody knows if it's possible to run an X6 ore 4x4GB DDR2 on the motherboard?

[DavidMMM]

a) I have a M2RS mobo, and the BIOS support stops to AM3 X4, just have a look here:

http://www.cpu-upgrade.com/mb-DFI/LA...790FX-M2R.html

b) You can run 4x2GB DDR2, but your mobo must support ECC DDR UDIMM/RDIMM in order to be able to run 4x4GB DDR2, which I assume is not the case. There are some Asus mobos with ECC support.

[AlleyViper]

Even if that site doesn't indicate, for the M3H5 (ddr3 version of the M2RSH) both full size and JR mATX there were Thuban compatible beta bios (D7SD707 was the last Thuban beta, while the last stable D7SDA09 only supported up to C3 X4), but they had some problems with turbo and it was very easy to get them to catch fire with blown PWM on a OC'd X6.

For the M2RS/M2RSH (SB750), IIRC even if it was a very similar board, it never received that beta x6 update (and the M2R had even less support, I don't remember if they can even cope well with C3s). But at the time, at dfi street/club someone had a x6 on a M2RSH with a modified bios, so at least on that board it might be possible for someone talented.

[techtrancer]

I don't want to use an other Motherboard because i want to Build an Retro Computer with the last UT Motherboard from DFI
The Max Support of X4 is not a Problem for me And i can live with it
But 4x2GB is not much for W7 And so I only can Build it with XP64
And now i serch a way to run 4x4GB of RAM

[FlanK3r]

DFI was great...Today is for me "new DFI" ROG boards. Nice to see some new photos of DFI setups

[AlleyViper]

Oh dang, the first 16x pci-e slot on my DFI 790FXB-M3H5 bit the dust after 7 years of use, so I'll have to do without the SB Z, because the SB750 USB ports are so crappy that I require the usb3 controller on the u3s6 for an hi-power usb wifi adapter (on heavy network loads all usb devices disconnect temporarily). Since I put a 7970 early in the year I've noticed that it was running at 8x only on that slot, now it doesn't work even for 1x cards. Awaiting Zen, can't justify to buy a replacement board.