Hello -
I've been building PC's since '92, and have been using ASUS ROG boards since they've issued. Yes, there have been some dogs, but for the most part, they are top-notch and I won't consider any other mobo but ASUS.
Even now...:mad:
System:
Maximus VI Extreme mobo
BIOS 1603
Core i7-4790K CPU, running rock steady at 4.8GHz
4 X 8Gb each Crucial Ballistix Sport DDR3-1600 RAM DIMMs, 9-9-9-24, 1.50VDC, tested and verified as compatible from Crucial, all are operational
3 X EVGA GTX760 OC GPU's, all working and known to be good
Corsair 1200AXi PSU
All PSU connections are made but two - the mini-4-pin EZPLUG 2, and the 4-pin 12V power at the top of the board. According to ASUS, the 4 pin or the 6 pin is ok, or both, but at least one must be connected to the PSU. I am using the 6 pin connector, as well as EZPLUG 1.
Here's the weirdness:
I can boot with one 8Gb DIMM in DIMM slot A1, or two 8Gb DIMMs in A1 and B1, but if I put DIMM's in A1 and A2, or all four DIMM's for 32Gb, the board posts an error 55.
I'm running an XMP profile (only one is available), and all DRAM timings and voltages are correct. Nothing I do helps.
2nd weirdness - I can place one GPU in any slot and boot up. If I place the GPU's in 2-way or 3-way SLI configuration per the guides on the site and per the manual, the computer will not boot. Latest drivers are installed.
So, memory is broken and SLI is broken. A little help would be appreciated.
Thanks.
Kev