**Official DFI LanParty UT X48-T2R(and LT) Discussion

[cstkl1]

I have read much of what you writing here .... and with a few hours lost my system to get 100% estable!!
I think many people going to use nbv very high in relation to mine

try occt..
and show ur ram settings..via memset
cause the NB voltage depends on it on the tRD

really interested in ure settings..
cause i saw windwithme on his dk x38 also doing similar

[hoodlikegaza]

im possibly thinking of ditching my evga 780i for this board. This thread is so long could someone just tell me very quickly the differences in the LT and UT other than price? All it looks like to me is different stock heatpipes.

[fireice2]

@hoodlikegaza

yup you got that right. its with the cooling solution.

[zsamz_]

im possibly thinking of ditching my evga 780i for this board. This thread is so long could someone just tell me very quickly the differences in the LT and UT other than price? All it looks like to me is different stock heatpipes.

price n pwm xtra cooling+ heatpipes
u be happy with lt

[WizardofOz]

This Board overvolts bigtime compared to the P35. Is this an added feature of the X48 or is it just happening with my board and the settings that I have. Also if over volting is not a feature then could someone explain to me why it is happening. Eg set 1.2375v in Bios, shows up as 1.248v Load CPUz. Vdroop enabled.

[Rinaun]

Yes this board does overvolt alot. Make sure you have cpu special add turned onto .23%, auto overvolts your cpu volts more

[zanzabar]

Yes this board does overvolt alot. Make sure you have cpu special add turned onto .23%, auto overvolts your cpu volts more

it dosnt overvolt it dose what u tell it to, and if u have load line or auto settings then u are telling it to overvolt, or u have one of the broken beta bioses

[zsamz_]

Yes this board does overvolt alot. Make sure you have cpu special add turned onto .23%, auto overvolts your cpu volts more

your drunk so is da wizard
this board has the closest thing i have ever seen to exact voltage
if anything it undervolts by 0.01

[axis]

your drunk so is da wizard
this board has the closest thing i have ever seen to exact voltage
if anything it undervolts by 0.01

I guess i'm sloshed as well cause my board overvolts too. I have Vcore 1.306 with special add 100.23% and get 1.34v as indicated in SG and Everest. It does Vdroop to 1.32 under load since I have it enabled. I'm running the official 0320 bios. I just use the bios setting as a trending setting. If I need more I go up, then check SG and Everest to see what it really is.

Axis

[zsamz_]

I guess i'm sloshed as well cause my board overvolts too. I have Vcore 1.306 with special add 100.23% and get 1.34v as indicated in SG and Everest. It does Vdroop to 1.32 under load since I have it enabled. I'm running the official 0320 bios. I just use the bios setting as a trending setting. If I need more I go up, then check SG and Everest to see what it really is.

Axis

special add will not be precise
maybe i was just so lucky with my board till it messed blew lol
hey maybe i get lucky n i goto 600fsb on the next 1
but on every settin it undervolted by 0.01v
oops i messed up on nb volt it undervolted by 0.05 with x48 bios it undervolted nb by 0.02v
btw everest is not 100% accurate chek with dmm n see

[WizardofOz]

Well, I will give it a try with Special Add NOT set to AUTO and see if this might rectify the Over Voltage. One more question for you guys about CLUNK'S GTL Ref Tables, and by the way Clunk thanks for all the effort in setting up this guide Post. I still DO NOT understand if there is a relationship between the CPU VTT and the NB VTT or if there is any.

For example if I use the values of 110 (GTL 1/2 Ref) 105 (GTL 0/3 Ref) and 85 (NB GTL Ref) from Clunks Table for 1.2500v CPU VTT BIOS Setting, what should the Voltage be for the NB VCore in the BIOS, can that be anything I set it to for example 1.405v.

The reason I ask is that P95 failed after 9.5h it fell over executing the 4096K FFT, so I figured I would focus on the NorthBridge

[axis]

special add will not be precise
maybe i was just so lucky with my board till it messed blew lol
hey maybe i get lucky n i goto 600fsb on the next 1
but on every settin it undervolted by 0.01v
oops i messed up on nb volt it undervolted by 0.05 with x48 bios it undervolted nb by 0.02v
btw everest is not 100% accurate chek with dmm n see

I can understand a little variance but we're talking the difference between 100.24% and 102.6%. Like I said, i'm not pissed about it. It's just that i've never been able to fully trust the Vcore settings. The rest of them seem to be pretty spot on though.

Wasn't your board a X38 flashed with the X48 bios? If so, that could be the reason you're board behaved differently.

Axis

[WizardofOz]

Yes this board does overvolt alot. Make sure you have cpu special add turned onto .23%, auto overvolts your cpu volts more

Well They have blocked the Special Add Option and I cannot use it unless I set the VCORE to >1.3000v. This really SUCKS, so I guess I cannot fine tune the voltage I need unless I run at a speed that requires more than 1.3000v.
Oh I did read the reason why as explained to Clunk by DFI.

[zsamz_]

I can understand a little variance but we're talking the difference between 100.24% and 102.6%. Like I said, i'm not pissed about it. It's just that i've never been able to fully trust the Vcore settings. The rest of them seem to be pretty spot on though.

Wasn't your board a X38 flashed with the X48 bios? If so, that could be the reason you're board behaved differently.

Axis

for a short time i had it on x48bios the x48 bios gave me better voltages
the x38bios was not as accurate
i went back to x38bois for everest

[Aldy402]

this mosfet sec gets REALLY HOT! I can barely keep my fingers on it for more then a couple of seconds
anybody come up with a cooling solution for it? or do I just have to make a custom sink?

[wilson]

This is what i did

Here are some pics of my system and the small fans i put on the pwm`s.


And my pwm temps are now at 37 idle

[Aldy402]

@wilson

good job, are those 2x 40mm strapped together?

[zsamz_]

this mosfet sec gets REALLY HOT! I can barely keep my fingers on it for more then a couple of seconds
anybody come up with a cooling solution for it? or do I just have to make a custom sink?

thanks i will get a sink for that
i'll post back with it

[wilson]

Yes but i also found that a old evga 680i nb fan did the same job .

The bit of cardboard is there to catch any zalman vga coolers that decide to fall off lol...

[Praz]

A couple of quick pics of the UT x48.

[TouGe]

Took me a while to get around to OC my chip w/ this board due to work but I finally got my basic OC finished. OC is stable 5 hours Prime Blend and 7 hours small FFT's. Further memory testing done using memtest w/ 3 instances running simultaneously for ~1.5 hours @ a time. Here are my settings:

CPU Feature
Thermal Management Control:  Disabled
PPM(EIST) Mode:  Disabled
Limit CPUID MaxVal:  Disabled
CIE Function:  Disabled
Execute Disable Bit: Enabled
Virtualization Technology: Disabled
Core Multi-Processing: Enabled

Exist Setup Shutdown:  Mode 2
Shutdown after AC Loss:  Disabled
CLOCK VC0 divider:  Auto
CPU Clock Ratio Unlock:  Enabled
CPU Clock Ratio: 9.5x
Target CPU Clock: 3800MHz
CPU Clock: 400MHz
Boot Up Clock: Auto
DRAM Speed: 266/667
Target DRAM Speed: 1003MHz
PCIE Clock: 110MHz
PCIE Slot Config: 4x NC

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled

Voltage Settings
CPU ViD Control: 1.30625V (1.32V)
CPU VID Special Add: Auto
DRAM Voltage Control: 1.958V (1.90V)
SB Core/CPU PLL Voltage: 1.510V
NB Core Voltage: 1.278V (1.29V)
CPU VTT Voltage: 1.100V (1.10V)
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45V
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Enabled
x CPU GTL1/3 REF Volt: 65
x CPU GTL 0/2 REF Volt: 64
x North Bridge GTL REF Volt: 48

DRAM Timing
Enhance Data transmitting: Fast
Enhance Addressing: Fast
T2 Dispatch: Disabled

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: Aggressive
DIMM 1 Clock fine delay: 1330
DIMM 2 Clock fine delay: Current
Ch 1 Command fine delay: 420
Ch 1 Control fine delay: Current
Ch1 Command fine delay: 910

Ch2 Clock Crossing Setting: Aggressive
DIMM 3 Clock fine delay: 1190
DIMM 4 Clock fine delay: Current
Ch 2 Command fine delay: 210
Ch 2 Control fine delay: Current
Ch2 Command fine delay: 980

Ch1Ch2 CommonClock Setting: Aggressive

Ch1 RDCAS GNT-Chip Delay: Auto
Ch1 WRCAS GNT-Chip Delay: Auto
Ch1 Command to CS Delay: Auto

Ch2 RDCAS GNT-Chip Delay: Auto
Ch2 WRCAS GNT-Chip Delay: Auto
Ch2 Command to CS Delay: Auto

CAS Latency Time (tCL): 5
RAS# to CAS# Delay (tRCD): 5
RAS# Precharge (tRP): 4
Precharge Delay (tRAS): 12
All Precharge to Act: 5
REF to ACT Delay (tRFC): 44
Performance LVL (Read Delay) (tRD): 7

Read delay phase adjust: Enter

Ch1 Read delay phase (4~0)
Channel 1 Phase 0 Pull-In: Enabled
Channel 1 Phase 1 Pull-In:       “
Channel 1 Phase 2 Pull-In:       “
Channel 1 Phase 3 Pull-In:       “
Channel 1 Phase 4 Pull-In:       “

Ch2 Read delay phase (4~0)
Channel 2 Phase 0 Pull-In:  Enabled
Channel 2 Phase 1 Pull-In:       “
Channel 2 Phase 2 Pull-In:       “
Channel 2 Phase 3 Pull-In:       “
Channel 2 Phase 4 Pull-In:       “

MCH ODT Latency: 1
Write to PRE Delay (tWR): 14
Rank Write to Read (tWTR): 11
ACT to ACT Delay (tRRD): 3
Read to Write Delay (tRDWR): 8
Ranks Write to Write (tWRWR): 5
Ranks Read to Read (tRDRD): 5
Ranks Write to Read (tWRRD): 5
Read CAS# Precharge (tRTP): 5
ALL PRE to Refresh: 5

I'm using some new RAM w/ this set up. I swore I wouldn't buy anymore RAM but I couldn't help myself. After hearing Tony speak of the FlexII's I checked out some reviews of these sticks and was generally impressed w/ their performance and I also like the support forum over at OCZ. So....2 days later....the FlexII's are definitely worth the money.

Other thoughts. Using the 2x2GB sticks must be less stressful on the NB than populating all 4 DIMM slots because 1.29V on the NB is far less than the 1.55-1.58V my Maximus required to run 4x1GB sticks of PC-9200 Mushkin @ 1067MHz 5-5-4-12-30.

I've got to hand it to the DFI guys, they definitely put together a well thoughtout and stable BIOS. I only had to clear the CMOS once and that's when I started messing around with fine delay settings. Other than that it was clear sailing the whole way to 3.8GHz.

[Bitgod]

I'm using one of those Antec Spot Coolers bent over and blowing on the PWM, I've got it plugged into the system fan plug so that I can control the speed of it via software, but it also has a 3-speed switch on it.

[zsamz_]

this mosfet sec gets REALLY HOT! I can barely keep my fingers on it for more then a couple of seconds
anybody come up with a cooling solution for it? or do I just have to make a custom sink?

here ya go
i just my board back and i gotta say its much better than my last one so far

pic of mosfet with sink from accelero s1 i had to cut it was too long it was made for ati card stuk it with thermal tape + a screw
i had to lap my pwm sink too was bad i added those pics too

[Tommy_Hewitt]

I love it

[asap]

man that is power and beauty