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

[Oese]

of course no uli thank god

how are the chances that something else was improved other than raid rom?

[Brother Esau]

Such as what? The only thing these Bios are really waiting on are Source Code Update from AMD /Award and more Microcode Update in regards to Phenom and new architecture

[Oese]

ah ok.. didnt know, just asking

[Brother Esau]

Of course there are some addition quirks that need to be sorted out which are of course issues with SB600 Raid Option Rom that needs dyer attention and also some small quirks such as some improved Next Generation PCI-E 2.0 Support due to slight refresh issue when Bios opens up. and of course the USB Keyboard issues

[Oese]

My mouse sometimes won't be recognized after the system was disconnected from the power grid when a usb printer is connected..

But I dont know whether its my mouse or the board or both.. Its a razer lachesis and not really free of bugs..

But good news.. I got the system booting into windows at 330x10 DDR667 divisor finally.. ok it hung but thats my ram its not stable at DDR1100.. 366x9 boots into win perfectly as well..

It was the trfc.. needed to set all four trfc's (not only of the banks that are occupied by my ramkit), and better 195ns than 127ns.. so thats ok and VERY good to know

[thekat]

I am new to the overclocking arena..

Need to know where to start..

DFI LanParty UT 790FX-M2R
XFX PVT88PYDD4 GeForce 8800GT XXX 512MB
AMD Athlon 64 X2 5000BE
ZALMAN CNPS 9500 AM2 2
OCZ Titanium XTC 4GB DDR2 800 (PC2 6400)
SeaSonic M12 SS-500HM
Antec Nine Hundred

Idle temp is about 17 degrees C.

thx

[Brother Esau]

First Page I have put some Overclocks with Bios Templates just remember this board responds well to low voltage and theres no need to crank stuff all the way up

[Oese]

Aaah you're thekat from the dfi club forum as well?

So how are your temps in windows under load

OC is pretty easy, if you want to do it the right way, first test cpu and ram separately and then go for a good combination.

first of all load optimized defaults in bios and save in a cmos reloaded slot..

to test ram simply put memory speed to DDR800 manually, then lower the cpu-multiplier and switch off cool and quiet in the bios.

than ramp up htt/cpu host until you get a no boot. Then you have a first estimation of what is possible with the ram. about 10-15mhz below this you should be able to boot into win.

at this time you normally dont need any messing with voltages and timings, but thats dependend on your ram. you could set it to 5-5-5 manually to see if you get some higher speeds and/or raise voltage to ~2.2v to look whether it does respond well to that or not. if not (and trfc is right :p), you should forget about voltage and/or timings for the first time and leave it at default. sometimes some subtiming can bring a boost in oc, but only if the spd is programmed with very tough timings.

ok now the cpu: lower the ram divisor to DDR533 or DDR400 and start pushing the htt again to find out max bootable clock at default voltage. cpu's normaly respond quite well to voltage, especially if default is as low as 1.2v as the case with amd's newer chips, but you should avoid > 1.5v at aircooling and I would say even not to go further than 1.4v without a good cooler.

so if you hit the wall, lower htt a 10-15mhz again, go into windows (if it doesn't boot lower it further) and test the cpu with 2 instances of prime (one on any core).

with this board i do not get into trouble with ht-clocks as long as htt/cpu host is below 280mhz. If you come close, lower the ht-clock from 1Ghz down to 600 or 800Mhz to see if you get some more stability.

OK, after all you now can think f a setting that comes close to cpu and ram max speed and be cool enough for day to day usage...

if you want to use c'n'q you are limited to the standard cpu multiplier, if not you can disable the c'n'q option, set a lower cpu multi and go for higher cpu host/htt-clocks to see if you can get a bit closer to max ram at a given cpu speed.. its tricky sometimes and i always have a calculator near me

after all, you will have to test your setting with prime blend (for ram stability) and prime large fft for cpu (2 instances always with a dual core) and of course in everyday usage.

perhaps if you suppose some ram oddity you could go for goldmemory to test ram alone..

oc on this board basically is very easy because the board isnt bottleneck anymore, as it was often with nF4...
good luck


@ brother esau: could lower my vcore as well now for my 24/7 setting 2 x 64bit prime stable very nice trfc really was the turning point..

[thekat]

First Page I have put some Overclocks with Bios Templates just remember this board responds well to low voltage and theres no need to crank stuff all the way up

I did see the template and will give this a go... .Oh.. I see you finally made
it to NC.. :-)

[thekat]

Aaah you're thekat from the dfi club forum as well?

Yes sir.. making the rounds

So how are your temps in windows under load

That is a loaded question since I don't run Windows.. :-)
I am getting 4 temp readings from lm-sensors..

Core0 Temp: +9.8 C
Core0 Temp: -2.8 C
Core1 Temp: +4.8 C
Core1 Temp: - 8.8 C

As you can see this processor is *way* cooler running the same HSF as
I did on the 6400BE..
Have to read the man pages on lm-sensors to get some explanation
on the + and -

Much thanks for the helpful replies..

I will test when I get home from the gym...

tk

[Oese]

hehe thats because you're running a brisbane now.. thats giving temp readouts that would fit if the cpu was under a compressor known issue with brisbane cores unfortunately..

you can't bench everest cache and memory because no windows, right.. sad..

i would like to know whether half multipliers are slower regarding memory performance with brisbane as well.. looks like.. with windsors, unfortunately i encountered really big differences in memory performance whilst at comparable speeds and timings..

[Brother Esau]

For those of you that just arrived in the thread and are new to owning the board you can read the review I did on the D.F.I 790FX-M2R when I was the only one that owned one in Pre - Release ....http://www.xtremesystems.org/forums/...d.php?t=169709


Has anyone tried the 3/7/2008 Beta Bios yet???

Just so you know I offer free Bios reprogramming service for those that Beta test for this Board in the event of a Bad Flash This is only available for those that Test Beta Bios for the D.F.I 790FX-M2R and get on the List with me

Contact me if interested!

Campbell

[KTE]

Hey, Tye how the hell are ya? Have you re-upped and gotten a DFI 790FX-M2R

Not too good.

Nope, did not change to DFI. None around here to use, I searched high and low, but wanted to get a Sapphire since it's available before my Phenom died while I had two more boards (770 and RS780) lying here to test.

Do you know if motherboards pro ships the DFI to UK? How much, if so and what is the delay period?

[Brother Esau]

Talk to Mike Tye I'm sure they will do it. Don't know cost but they are good folk to buy from and they are honest this is Mikes User name here......motherboardpro

[Sparky]

Not too good.

Nope, did not change to DFI. None around here to use, I searched high and low, but wanted to get a Sapphire since it's available before my Phenom died while I had two more boards (770 and RS780) lying here to test.

Do you know if motherboards pro ships the DFI to UK? How much, if so and what is the delay period?

ouch. I'll keep this in mind to make sure I keep mem voltages in check. I don't plan on taking the memory over the rated 2.1V anyway so here's hoping everything behaves...

Once I get my M2RS back from RMA hopefully I can get somewhere with overclocking. From what I've seen so far though it is quite a pain to do so Almost seems they made things overly complicated, perhaps one reason why it doesn't perform as well as I think they could. Too much stuff going on!

[Brother Esau]

You send you're board in then Sparky?

[Oese]

will test new bios

thx for review link

@ KTE: regrets for dead phenom...

[thekat]

hehe thats because you're running a brisbane now.. thats giving temp readouts that would fit if the cpu was under a compressor known issue with brisbane cores unfortunately..

you can't bench everest cache and memory because no windows, right.. sad..

i would like to know whether half multipliers are slower regarding memory performance with brisbane as well.. looks like.. with windsors, unfortunately i encountered really big differences in memory performance whilst at comparable speeds and timings..

I will probably load Windows on a separate drive.. but that will probably be
another week or so.. Life gets in the way sometimes..

[Oese]

hehe

[Brother Esau]

You load them new Bios up???

[thekat]

You load them new Bios up???

Mine has 1/30/08 on it, per the DFI site this is the latest..
(most stable I hope..?)

[Brother Esau]

New Beta Bios 3/7/2008 ,,,,Linky

Like I said "Beta" Bios Testing not "Official" Bios Testing!

[aGeoM]

New Beta Bios 3/7/2008 ,,,,Linky

Like I said "Beta" Bios Testing not "Official" Bios Testing!

Hi

Thx, I could not get the bios file

[Sparky]

You send you're board in then Sparky?

Yeah, I'm going to be emailing the form tonight after class. Sucks but the board has issues

[Oese]

i got the bios from china dfi site..

heres the link..

http://tw.dfi.com.tw/Support/Downloa...FLAG=B&SITE=TW

will flash soon

yeah flash no problem, my old settings work as always..

everest latency even lower than before