Hi there,
I have an Asus Rampage IV Forumla on BIOS 4804
I have been overclocking for a very long time, so I know its nothing with the overclock and I am leaning that its more to the BIOS having issues with DPC latency, but I am not entirely sure, I also have a NIC to look at that might be the cause.
Anyways heres the run down on the system
Intel 3930k @ 4.5GHz 45x100 (Patched in latest OROM, ASMEDIA drivers from Fernando's UBU)
32GB Corsair VengeancePRO DDR3 1866 9-9-9-27-CR1
2 HD7870 Crossfire 1200/1300
Killer 2100 NIC (latest driver 6.1.0.603)
Whole system is liquid cooled by a custom loop in a Corsair 800D
I have also tried running HPET on, and HPET off for system timers.
No BSODs either, or any sort of erratic behavior.
Latest Chipset driver, IRST driver, and everything else, PC passes Memtest86+, OCCT (Small/Med/Large 12hrs each), 20 passes of LinX running latest linpack binaries, and Prime95 (good old fashioned priority 9, using a custom setting)
I am running LatencyMon v6.00 and seem to be getting very high DPC from the Killer 2100 all of a sudden, prior to that it had not been acting this way, the OS is Windows 8.1 x64 (not running Update 1 for April), I am going to try reverting to an older BIOS and see if the same issue arises, or if its something with one of the drivers I have, but I just wanted to see if anyone else had issues like this with 4804, previously I was only seeing 132ms latency on these, and now its wayyy up there.
I also haven't ruled out the fact it might just be latencymon reading something wrong, recently it was updated to 6.00.