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

[justapost]

Well its just a Real Fact as it Happens when my Epson Printer is Turnned on the CPU Temps climb just as you are experiencing and have done so since the beginning with very early Bios

Crazy, that epson printer does not use power from the usb in opposite to the usb-stick. I tried a 4pin 12V rail instead of the 8pin one that helped in terms of power consumption. With the 8pin rail the consumption rose ~20W and with the 4pin only 5-10W if i remember correct. Gotta revise that sometime.
I assume this will also help in terms of temps but the cpu will be limited to 18A instead of 36A (only interesting above ~1.45V vcore).

[Final8ty]

A good reason that you are requiring more Vcore is because when you first got it you leaned on the voltage too much....Possibly! I find since back with 939 Opterons and x2 overclocking is that with AMD Processors its Taboo to intruce High Voltage to the Processor off the front line I also find that if you start out with lower voltage and find the lowest it can run on at stock (Boot) you can actually train AMD CPU's to respond to and utilize lower voltage when Overclocking Most say that is a Myth but I have successfully done this with every AMD CPU I have since I read this 2 years ago Maybe its and I am just lucky but 6 AMD CPU"s later I really believe that its achievable from my results and what I have experienced at least.

I agree & have a few methods to getting more Mhz out of the CPU with a fitness program.
As you has seen my 6400BE will now but up at 3600+ where before i could only get 3570 max no matter the VCore.

[justapost]

with 04/15 its reading 1,440v in cpuz and 1,436v with dmm at 1,4v stock vcore btw.. so cpuz is indeed pretty accurate, but there are these certain discrete steps.. 1,44v, 1,456v and so on..

you can measure vcore at these points marked red...

Abit more inaccurate here.
Bios: 1.3125V
CPU-Z: 1.312V
DMM: 1.355V

Found points for NB voltage (green).

Bios: 1.14375V
DMM: 1.142-1.143V

Testing voltages with 4pin vs 8pin rail:

Bios: 1.3125/1.14375 (cpu/nb)

4pin/idle:
CPU-Z: 1.296V
DMM-CPU: 1.326V
DMM-NB: 1.139V

8pin/idle:
CPU-Z: 1.296V
DMM-CPU: 1.327V
DMM-NB: 1.138V

4pin/load:
CPU-Z: 1.312V
DMM-CPU: 1.353V
DMM-NB: 1.139V
P-Tuner 12V1(max): 13.5A/12.04V
P-Tuner 12V2(max): 0
DMM-12V1: 11.92V

8pin/load:
CPU-Z: 1.312V
DMM-CPU: 1.351V
DMM-NB: 1.139V
P-Tuner 12V1(max): 7.2A/12.09V
P-Tuner 12V2(max): 5.4A/12.09V
DMM-12V1: 12.04V
DMM-12V2: 12.05V

Using 8ping results in more accurate 12V1 P-Tuner readings.
Beside the 0.03-0.04V higher vcore (which is huge isn't it?) everything else seems to be in range.

[Brother Esau]

Crazy, that epson printer does not use power from the usb in opposite to the usb-stick. I tried a 4pin 12V rail instead of the 8pin one that helped in terms of power consumption. With the 8pin rail the consumption rose ~20W and with the 4pin only 5-10W if i remember correct. Gotta revise that sometime.
I assume this will also help in terms of temps but the cpu will be limited to 18A instead of 36A (only interesting above ~1.45V vcore).

I don't quite understand that myself Achim Perplexing it is

[Oese]

Abit more inaccurate here.
Bios: 1.3125V
CPU-Z: 1.312V
DMM: 1.355V

Found points for NB voltage (green).

Bios: 1.14375V
DMM: 1.142-1.143V

Testing voltages with 4pin vs 8pin rail:

Bios: 1.3125/1.14375 (cpu/nb)

4pin/idle:
CPU-Z: 1.296V
DMM-CPU: 1.326V
DMM-NB: 1.139V

8pin/idle:
CPU-Z: 1.296V
DMM-CPU: 1.327V
DMM-NB: 1.138V

4pin/load:
CPU-Z: 1.312V
DMM-CPU: 1.353V
DMM-NB: 1.139V
P-Tuner 12V1(max): 13.5A/12.04V
P-Tuner 12V2(max): 0
DMM-12V1: 11.92V

8pin/load:
CPU-Z: 1.312V
DMM-CPU: 1.351V
DMM-NB: 1.139V
P-Tuner 12V1(max): 7.2A/12.09V
P-Tuner 12V2(max): 5.4A/12.09V
DMM-12V1: 12.04V
DMM-12V2: 12.05V

Using 8ping results in more accurate 12V1 P-Tuner readings.
Beside the 0.03-0.04V higher vcore (which is huge isn't it?) everything else seems to be in range.

nice findings.. I think that overvolting is pretty huge as well..

[DPeter]

Well its just a Real Fact as it Happens when my Epson Printer is Turnned on the CPU Temps climb just as you are experiencing and have done so since the beginning with very early Bios

Well Brother Esau I think I know the cause of that problem, some usb products really poll the bus many times causing the cpu to kick up out off low power (c2, c3, c4, other special mode) mode causing it to consume a lot more power! I first saw this on my centrino notebook, so i never use usb stuff on my notebook any more when I'm on the go (even changed to a pcmcia bluetooth card with dma so it would not excess te cpu for everything it needs). You can check this with windows performance measurment program and than select c1,c2,c3 enz percentage time. It will show a difference in these modes when popping up. I guesse you will see almost no c2 and c3 time when running the epson.

[Brother Esau]

Thanks for the Insight DPeter

[KTE]

Thanks Tony

[Brother Esau]

You get your board yet from your uncle Tye?

[Slagathor]

So with this overvolting, setting my ram at 1.9 is a bad thing????

And CPU is 1 notch over default, I think it reads 1.31, got it at 2900mhz so far...

[stocius]

So with this overvolting, setting my ram at 1.9 is a bad thing????

And CPU is 1 notch over default, I think it reads 1.31, got it at 2900mhz so far...

Very high volts can fry and/or decrease the life of your components. Phenoms are designed to respond well to low volts...voltage increases are a last resort imho...

[Slagathor]

I was a tad off on the vcore, but my performance doesnt seem up to snuff....

I have used the bios template, maybe someone can see something I am missing, here it is, along with an 06 screen. (I would thingk an 8800GTS 320mb would score a tad better in 06... heh)

DFI LANPARTY UT 790FX-M2R (BIOS 4/15/2008 "Beta")

AMD Phenom 9850 Black Edition "B3"

ThermalRight Ultra 120 Extreme

Mushkin Redline PC-8000

8800GTS 320mb 174.85

X-Fi Fatal1ty

2x250 Western Digital - Raid 0 - On-board SiliconeImages controller

Lite-On 1693SOHW DVD/RW

ANTEC TP 2.0 550 watt

Chieftech Dragon series full tower

>HT Link Control:
 
HT Link Width......................... - 16 bit
HT Frequency.......................... - 2GHZ MHz
IH Flow Control Mode.................. - Disabled
HT Link Tristate...................... - Disabled
2x LCLK Mode.......................... - Disabled
Unit Id Clumping...................... - Disabled
 
>CPU Feature:
 
CPU DID.............................. - NA
CPU FID.............................. - NA
CPU-NB DID........................... - 1
CPU-NB FID........................... - 06
AMD CPU stepping..................... - P0

>DRAM Configuration:

MCT Memory Timing.................... - Manual
2T Mode.............................. - Auto
Cas Latency Time..................... - 5
Pre Charge Delay (tRAS).............. - 16
DRAM RAS# Precharge.................. - 5
DRAN RAS# to CAS# Delay.............. - 5
Bank to Bank Cmd (TRRD).............. - Auto
TRC.................................. - AUTO
TRTP................................. - Auto
Write Recovery (TWR)................. - Auto
Write-Read Command (TWTR)............ - Auto
TRFC0................................ - 195ns
TRFC1................................ - 195ns
TRFC2................................ - 195ns
TRFC3................................ - 195ns
Trdrd................................ - Auto
TrwtT0............................... - Auto
Twrrd................................ - Auto
Twrwr................................ - Auto
CS/ODT Pin Fine Delay................ - Enabled
Bank Swizzle Mode.................... - Enabled
Auto Tweak Performance............... - Enabled
Optimal Performance Mode............. - Enabled

>ODC Control Mode:

DRAM Drivers Weak Mode.............. - Normal
Output Drivers Comp................. - Normal
>Channel A:
CPU On-die Termination.............. - 300 ohms +/- 20%
DQS Drive Strength.................. - 1.00x
Data Drive Strength................. - 1.00x
MEMCLK Drive Strength............... - 1.00x
Addr/Cmd Drive Strength............. - 1.50x
CS/ODT Drive Strength............... - 1.50x
CKE Drive Strenght.................. - 1.50x
>Channel B:
CPU On-die Termination.............. - 300 ohms +/- 20%
DQS Drive Strength.................. - 1.00x
Data Drive Strength................. - 1.00x
MEMCLK Drive Strength............... - 1.00x
Addr/Cmd Drive Strength............. - 1.50x
CS/ODT Drive Strength............... - 1.50x
CKE Drive Strenght.................. - 1.50x


>PWM Settings:
 
PWM Control.......................... - Enabled
CPU VID Control...................... - 1.3v
CPU Vid Special Add.................. - 100.32
CPU NB Vlotage Control............... - Auto
CPU NB Vid Special Add............... - Auto
DRAM Voltage Control................. - 1.90v
SB PLL 1.2V Voltage.................. - 1.20v
NB Core Voltage...................... - 1.250v
NB PCI-E Voltage..................... - 1.120v
NB HT Voltage........................ - 1.270v

 
Genie BIOS Settings:
 
Timing Mode.......................... - Manual
Memory Clock value or Limit.......... - DDR 1066
PCIE 3,4 State....................... - Auto
PCIE 2 State......................... - x2
CPU TLB Cache Fix.................... - Disabled
AMD K8 Cool & Quiet control.......... - Disabled
CPU Clock Ratio...................... - 14.5
Spread Spectrum...................... - Disabled
CPU Host/HTT Clock................... - 200mhz
CPU Host/HTT Boot Up Clock........... - 200mhz
CPU Host/HTT Adjustment Gap.......... - 5mhz
PCIE Clock........................... - 100mhz

[Jaivan]

I've just been wondering why under the 1066 memory divider in the BIOS the tRAS cannot be set to 15, but with MemSet you can set it to 15??

[KTE]

Camp, I have to pick it up from a firm far away when I get time, not him
I'm in no rush, better BIOSes are needed yet anyway. Would be good to compare and see if I get the WISE freezing and MHz on the DFI that I did on the MSI at the same settings. By that time I'll have another MSI board to check out again, if its any better.

[RobPuba]

How many of you guys are using the trans piper retention kit and how well it preform ??. I'm thing about getting one of these board in a couple of weeks.

[Brother Esau]

I use it since they first started implementing it with the release of the DFI P35 and the Transpiper works very well

[RobPuba]

I use it since they first started implementing it with the release of the DFI P35 and the Transpiper works very well

Do you have any pics of the transpiper in the case...... just wondering how it looks ?

[illogical]

Here's a couple of pictures with it mounted internally.
http://img.villagephotos.com/p/2004-...7/DSCF0826.JPG

http://img.villagephotos.com/p/2004-...7/DSCF0824.JPG

I've posted links rather than the images so I didn't need to reduce the sizr and you can see a bit more detail, you can zoom on those and get a better idea.

[RobPuba]

Nice pics..... One last question. I have the AMD Athlon 64 X2 5000+ Windsor 2.6GHz 2 x 512KB L2 Cache Socket AM2 89W Dual-Core Processor and would like to know can I use it until I get the AMD Phenom 9850 Black Edition later on ? Money is tight, but I want this board so bad !

Here's a couple of pictures with it mounted internally.
http://img.villagephotos.com/p/2004-...7/DSCF0826.JPG

http://img.villagephotos.com/p/2004-...7/DSCF0824.JPG

I've posted links rather than the images so I didn't need to reduce the sizr and you can see a bit more detail, you can zoom on those and get a better idea.

[Oese]

of course you can use your 5000+

[justapost]

Well Brother Esau I think I know the cause of that problem, some usb products really poll the bus many times causing the cpu to kick up out off low power (c2, c3, c4, other special mode) mode causing it to consume a lot more power! I first saw this on my centrino notebook, so i never use usb stuff on my notebook any more when I'm on the go (even changed to a pcmcia bluetooth card with dma so it would not excess te cpu for everything it needs). You can check this with windows performance measurment program and than select c1,c2,c3 enz percentage time. It will show a difference in these modes when popping up. I guesse you will see almost no c2 and c3 time when running the epson.

Well spotted.
I disabled EHCI (aka USB2) support in the bios and the core temps stay at 32°C now. The power consumption rises at about 2W thats what i get on other boards also.

[KTE]

I've never had power increase with USB device on a few 700 series boards and I use 5 USB attachments daily [KB/Mouse/USB-D/P-Tuner/Nokia]. Kinda strange that it actually puts a high load on the CPU (I/O load), looks certainly like a device specific feature.

My DFI picked up in morn by a friend, its not knew, package was opened but its giving me C1 as well, same as on MSI, Abit and GBT boards.

[justapost]

I've never had power increase with USB device on a few 700 series boards and I use 5 USB attachments daily [KB/Mouse/USB-D/P-Tuner/Nokia]. Kinda strange that it actually puts a high load on the CPU (I/O load), looks certainly like a device specific feature.

Yeah, I tried that usb-stick on many different boards (M2A-VM,M3A,P5K-E) on all boards the consumption rose about 2W. All had USB2 mode enabled.

My DFI picked up in morn by a friend, its not knew, package was opened but its giving me C1 as well, same as on MSI, Abit and GBT boards.

Don't say you have another non working chip (they don't die).

[KTE]

The 9850BE hasn't booted for 4 days on any board. Thought it might be board but new 740G and M2R gives same error. I'll just try debugging it after I've played with the 4450e/740G setup

On DFI, like with Abit, it maybe BIOS related.

[justapost]

The 9850BE hasn't booted for 4 days on any board. Thought it might be board but new 740G and M2R gives same error. I'll just try debugging it after I've played with the 4450e/740G setup

On DFI, like with Abit, it maybe BIOS related.

The GBT780G booted fine with the 9850BE and the 9600BE here. However the 9600BE did not boot in the GBT board after I ran benchmarks at 2.6/2.2GHz with the 9600BE. I mentioned the enormous voltage increase from 1.296V up to 1.47V at those settings before, maybe that was too much for the 9600BE. GBT board works fine here with the 4850e. Gotta try the 9600BE in the DFI board but chances are good I fried my second phenom also.