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

[serial099]

crap, i was running 1.3.08 bios for about a week, then last nite i went and downloaded speedfan, as soon as i ran it, i get a hang, i reboot and get a c1 error (first ever with this system), i followed all the steps in clearing cmos (through both jumpers and holding the reset and pwr buttons down, also tried different ram, cant confirm if they are 1.8vdimm as some have mentioned to try, please is there anything else i can try to get this thing up and running again other than having to rma the board, TIA

at the time of the hang the system was running at default bios settngs, so disregard the sig


enko

had the same thing happen to me with speedfan. Got new ram and everything. The only two slots that work are banks 1 and two (the slots away from the cpu socket). If I put any ram in either slot 3 or 4 (the two closest to the CPU) I get a C1 error and it refuses to post. I even got some new ram and still no dice. Out of 4 tested and good ram sticks none of them will post in bank 3 or 4. Currently I have 2 x1gb sticks in the 1 and two slots, but of course they only run single channel right now, which kind of sucks.

Anyone else have any luck with fixing this or any correspondence with DFI on how to fix this?

*edit* I don't think it's killed you CPU (at least it didn't on mine thankfully), but it definitely did something to my ram banks or whatever reads them. According to the DFI wiki a C1 error has to do with ram.

*double edit* here is the link explaining what all the bios led codes mean
http://www.phoenix.com/NR/rdonlyres/...0/postcode.pdf