**Unified** DFI LanParty UT 790FX-M2R-M2RS / Phenom /Data Base Thread**

[AlabamaCajun]

Testing the bios now, 1.8V got me 1.84 on the MM which is a lot better than 1.9V+ as it used to be.

Also I have an answer for the flashing cursor and blue bar issue, it seems a slight corruption in cmos reloaded may be the cause, im trying to get either an option added to bios to clear all cmos reloaded data or the tool to write 0's to it like F-Tester.exe we used on the MF4 chipsets.

OK, I saw that last night and blew it off as instability.

AC that's the worst 9850 I've heard of so far, really, very poor - unless there's something else to it.
Not sure how exactly you're trying but your board has many compatibility problems so the first thing I would do is take one stick of RAM out, throw tRFC 195ns and then try seeing what the core can get to stable. Then throw the second stick back in and check.

In my case RAM limits the oc a lot and yep, tRFC is central to Phenom oc and stability. I have no boot at 800 4-4-4-12-23 105ns 2.1v whilst on the Intel platform I can get 1200 5-5-5-15 2.15v stable out of them. Minimum stable boot requires 127.5ns tRFC here with ProMOS and Elpida ICs. Microns do better.

As long as I leave the RAM at 800, I'm solid as a rock. I can drop ram to 667 and clock up ok but limited by the CPU. I can run the RAM to about 840 before the TRC gets to short at 26 in order to complete the refresh cycle. It's bases on time. When you increase freq. the time spent waiting for refresh is shortened but the physics of the RAM require that time in m/secs to get through the cycle. I don't know why no one in the industry will listen to this. Either fix the mobos so we can set 900, 1000, 1100 etc or fix the RAM tables so that the correct settings are in place when we adjust timings to meet these standards. All the people making these toys need to get it together. I'm getting tired of spending money only to find it won't work with this or that part.

CPU speed is another issue. I'm voltage and thermal limited. Below 1.25 I can't go over 2520 or so. I need 1.29 to get 2.6G fairly stable. 1.32 to go to 2.7G. Above 2.6G the heat rises about 60C which means thermal instability. I need to find a sink that performs better than the Ninja which has been the best so far.

I'm looking at 3 options. Get a better Air sink, I've though of water but it's a maintenance issue and a pain.
Leave it at Stock until we get more results or can resolve the issue but continue to experiment on occasion.
Put the 5600 back in and use the Kentsfield for quad work.