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

[Brother Esau]

What for? It runs fine at 75w and the less power consumption the better

The Gen 2.0 settings right now I am on autonominus switch which btw I have no idea what that means and what the difference between the 2 are

@willieK .........what Bios are you running please?

[willyK]

I wondered if the extra juice and bandwidth would really make that much of a difference. Doesn't seem to playing Guild Wars anyway.

I'm running the original BIOS that came with the board (I'm still confused as to whether or not the 11/22/07 BIOS is the original or the 1st updated version). From what I can tell just reading this thread, all of the BIOS updates have been for optimization with Phenom processors and I'm running an X2 5000+ BE. That coupled with 2 or 3 accounts of bad BIOS flashes on DFI boards (from Windows, floppy, and USB) has got me paranoid enough to hold off on updating the BIOS until I get a Phenom. I don't run RAID either.

Is there anywhere to get detailed info on all of these BIOS settings?

[Brother Esau]

I have already stated on this Thread that I Program Bios Chips and for those that Test the Beta Bios out so that we may get some progres made with DFI on timely next Official release that is worth a Damn I made it clear that in the event of Bad flash or Bios corruption due to Beta Bios testing I will provide a Free Bios Re-Programming Service and get you back up and running!

This Service is Only for those that Participate in Active Beta Bios Testing for this Board no one else!

[Nedjo]

What for? It runs fine at 75w and the less power consumption the better

The Gen 2.0 settings right now I am on autonominus switch which btw I have no idea what that means and what the difference between the 2 are

@willieK .........what Bios are you running please?

one of downsides of this mobo is lack of any BIOS options anywhere!

[BadNizze]

Hey, tictac Thats not really the point I was making. The point I was making is that AMD came to bat unprepared with motherboard layout by utilizing old technology with new Architecture. Without coming right up front and saying it you know what I mean

@BadNizzle.........How are you're thoughts on the 12/21/07 Beta?

Good so far, I hade som Nic issues before with the relese bios, Sometimes I hade to dissble my network and then renable it go get it to work. This only happen the first time i booted the computer if my Modem\router hade been off during the night. As long as i keept the Router\Modem on there was no issues. I´m testing my ram Atm, 4-4-4-12 550mhz @ 2,42 priming away so far!

[justapost]

I have a quetion about this boot issue. Does the system not post or does it hangup during windows startup? If so, is it an Vista issue or does it occure with XP or Linux also?

Thanks in advance
achim~

[Brother Esau]

one of downsides of this mobo is lack of any BIOS options anywhere!

What prey tell may that be if you don't mind me asking?

[Nedjo]

What prey tell may that be if you don't mind me asking?

Pfff way much snifter on Saturday night, and hazy head in Sunday morning…
No, EXPLANATION of the options Is what I've meant.
Manual doesn’t have BIOS section, and options in the bios don’t have explanation in the right pane.

[willyK]

The manual that you can download directly from the DFI website is much more detailed and does give a limited explanation of most of the BIOS settings. It's still not as detailed as I would like, though.

@ Bro Esau - I know you reprogram corrupted BIOS chips, and if I and the rest of my family didn't rely so heavily on this computer (it's the only one in the house) I'd certainly take you up on it. I need to get a cheap laptop so I can get my money's worth out of this board.

In the mean time, KEEP UP THE GOOD WORK! This thread is damn near the only thing on the internet worth reading at this point in time. Beside Ninjalane's review in this mobo, this thread is it for info on this mobo.

[Iketh]

badnizze, am i reading ur signature right? u are running ballistix 5-4-4-12 @ 550 on the dfi with a 6400+?... are there any reports of getting 4-4-4-12 any higher than ~920mhz with a phenom?

[BadNizze]

badnizze, am i reading ur signature right? u are running ballistix 5-4-4-12 @ 550 on the dfi with a 6400+?... are there any reports of getting 4-4-4-12 any higher than ~920mhz with a phenom?

Don´t know, but my ballistix does 4-4-4-12 550mhz @ 2,37 prime stable

[willyK]

@ BadNizze - have you run memtest86 with those sticks at those speeds and timings with your 6400+?

Reason I ask is that I've got 2 GB Crucial Ballistix PC2-8500 paired with a 5000+ BE, and optimized default BIOS settings set DRAM voltage to 1.96 V and speed to 800 MHz. At these settings, memtest86 results come back error free. However, if I crank the voltage up to manufacturer's spec, which is 2.2 V, I get an error very quickly that halts testing.

800 MHz Crucial Ballistix is rated @ 2.2 V as well. Is it okay to run it undervolted, or is this just some artifact of memtest that I should ignore?

[jimmyz]

@ BadNizze - have you run memtest86 with those sticks at those speeds and timings with your 6400+?

Reason I ask is that I've got 2 GB Crucial Ballistix PC2-8500 paired with a 5000+ BE, and optimized default BIOS settings set DRAM voltage to 1.96 V and speed to 800 MHz. At these settings, memtest86 results come back error free. However, if I crank the voltage up to manufacturer's spec, which is 2.2 V, I get an error very quickly that halts testing.

800 MHz Crucial Ballistix is rated @ 2.2 V as well. Is it okay to run it undervolted, or is this just some artifact of memtest that I should ignore?

That 2.2 is the maximum voltage. I ran my ballistix tracers for months on 1.9v with 500 mhz @ 4-4-4-9 timing on a p-35. always use a fan also. errors @ the same speed but higher voltage indicates a serious lack of airflow. ram needs a good breeze over it to disapate the heat.

[willyK]

Thanks Jimmyz, the 12 cm fan on my XP-120 sits over the memory nicely.

Another strange thing I noticed using memtest86, my BIOS is set to run the memory at 400 MHz, but memtest is reporting 433 MHz. I was curious if it could be related to these settings:



ODC control is under the DRAM settings in the Genie BIOS. I honestly have no idea what any of these settings mean, and the downloadable motherboard manual doesn't mention them. Any explanation of these settings or any other possible source of the reported memtest frequency from anyone would be appreciated.

Also in reference to the BIOS screenshot above, "DRAM Drivers Weak Mode" has 2 settings - "Normal Drive" and "Weak Drive". Does anyone know what this refers to?

[BadNizze]

I think we need Tony or Rgone to explain those settings, I dont have a clue either...

About my ballistix, I have a 80cfm Antec fan over them know when i run over 2,2. Fore 24/7 use my Si-128SE hangs over them and i have very good airflow throu my case aswell.

[Nedjo]

Speaking about Ballistix, I also have them on this mobo. Four Sticks of 1GB PC2-6400 EPP. I run them @1066 CL5 with 2V. Gradually I'm searching for the lowest possible voltage for this frequency. Right now I'm settled on 2V, so I can dedicate more time to CPU OC'ing…

Speaking about CPU OC'ing I do have annoying problem with this mobo and Phenom 9900…

Namely, CPU works w/o problem @ 2.8 GHz (14x200) with default voltage – 1.3V
The problem is when I shutdown PC, and power up it after some time (it makes no difference when), I get "88" post message on LED, and need to do EZ recovery. (power+reset button)

BIOS is 1/8/2008

[Brother Esau]

@Nedjo.........You mean you're Bios is 1/03/2008 Beta?



BTW.......i RECENTLY JUST PULLED MY CHIP OUT AND Erased & Re-Programmed it with 11/22/07 Official and figured I would give 1/03/2008 another go and see if it made a difference and it did not The 1/03/2008 Beta is Bugged and should be avoided. Please use the 12/21/07 Beta if you must dabble in the beta bios!

[BadNizze]

Full tests with my Ballistix Pc8500, I´m only testing prime today. I don´t think SuperPi is much of an stability test, my goal today was to try diffrent 24/7 settings so only prime blend.

I´m not much of an writher\reviewer so we skip that part and go direcly to the results!

First my older 24/7 sertting of 5-4-4-12 @ 2,16v


Same timings as above more Mhz! Done @ 2,25v


4-4-4-12 @ 2,37 Very pleased with this


Tighther timings of 4-4-3-9 @ 2,42 also nice

[KTE]

Although nice, prime blend isn't really much good in my experience. Try Systools 32Million CPU benchmark as it uses plus 1.3GB RAM and will really let you know if your memory is erroring. And if that passes, Memtest is the proper stability tool you need to run, especially test#5.

[Brother Esau]

Never used Wizzards Systool but I know from prior experience at some times what will pass MemTest will not Pass Prime95 Blend

[G-UNIT91]

brother, I want to see the review dfi 790 + PHENOM....

[Brother Esau]

Good "Coin Up" and get me a Phenom 9600 BE and I will give you a review

[Nedjo]

brother, I want to see the review dfi 790 + PHENOM....

I don't have time for full featuredreview, but if you would be specific what do you wan to know, I might help...

[Brother Esau]

Nedjo......you're Bios is 1/03/2008 right? You wrote 1/8/2008

[Nedjo]

Nedjo......you're Bios is 1/03/2008 right? You wrote 1/8/2008

Yeah I made mistake...

Also you know I was dissatisfied with the fact that after switching of PC, and turning it on again, I get cold boot (code "88") when my Phenom 9900 is OC'ed @ 2.8 GB (14x200).

First I thought that reason is 1/03/2008 BIOS, so I switch back to previous beta, but this annoying problem remains

This is so far my biggest issue with this mobo.

I think that DFI really need to focus more efforts about this AMD flagship. After all they've build reputation for LP series around legendary s939 model, and I think they should push little more on AM2+ front...