Official DFI LanParty UT X38-T2R(and LT) Discussion/Review/Overclock/Guide Thread

[Jor3lBR]

no vdroop control is bad once u break into the 1.5V or higher

but when u enable the gtl settings then u can lowwer the voltages and optimize it (lowing the temps), then letting u oc more, and then back to the start

hey zanz thanks for the input

but with a q6600 in the 3600Mhz mark (that's what t_ski wanna achieve) we are nowhere near a 1.5v setup in fact this is more like a 24/7 low volt setup:



* temp readings: closed case, dual rad w/ 7v fans, 24oC room.

[Praz]

The screenshots were posted as a starting point. Depending on components, settings will have to be altered slightly from those shown.

Unless the operating system is configured for variable stepping (VCORE and frequency) PPM (EIST) does nothing so I very seldom disable it. In the two screenshots I posted C1E being enabled is only lowering the frequency when idle. If CPU VID Control is set to anything other then Auto the VCORE will stay where set.

On my 24/7 systems, regardless of overclock, C1E and VDroop Control is enabled and VCORE is set using Special Add. At idle both VCORE and frequency decrease. With VDroop enabled the CPU and power circuitry receive the benefits that VDroop brings. And the excessive voltage normally associated with Droop is never seen because the voltage is not increased until the CPU is loaded.

With the exception of all out benching there is no reason not to use this on a properly configured, stable system.

[zsamz_]

When you reach full stability you should turn all to enabled, including vdroop, it won't affect your stability and will make your system run much longer in terms of degradation...

lol i already did
i get 0,01v droop

[zsamz_]

zsamz and Praz, thanks for the advice. I'll see if I can try them out later tonight.

Praz, that first list of settings (2 x 1GB) is not to far off from another list of settigns you posted earlier. I tried those without luck (wouldn't even boot). I think the new ones have one step up on vcore and Setup Shutdown Mode is changed, and about half of the ram timings are different, but that's about it. Where those a copy and paste from another run you did, or specific suggestions for my setup? Just curious - I'll still give them a shot.

lol Actually I think it was the 2 x 2GB settings you just posted. They seem the same.

BTW, why do you suggest having all the PM stuff enabled? Doesn't that effect the stability a little?

you can't follow praz's setting to the T

every cpu is different every board is different
n he running promos chips on his you running d9
i got 6 sets of d9 every one reacts differen on the board
bump your voltages get stable set right gtl settings then you can think of lowering voltages

[Origin_Unknown]

you both need to play with glt settings n stop tryin the easy way
dont use auto on nothin set it high then tighten when stable

yeah - did that m8.

82
80
111


i think i had them as

[t_ski]

OK, I'll give it another shot here in a little bit. Weird things have been happening here today though. Three times my PC locked up while browsing (twice while looking at the same webpage and once on a new site I don't normally go on). I ran two loops of MemTest 86 and everything was fine, then I ran Prime 95 small FFT's for about 15 minutes with no problems. Not sure if it's at all related to anything, especially since I'm at stock right now

BTW, I figured I'd post a MemSet screen shot with the ram timings. I plan on plugging these same timings in manually since you guys said to set everything and not use Auto.

[zanzabar]

did u change settings and not apply, how are u at performance lvl 4

[zsamz_]

did u change settings and not apply, how are u at performance lvl 4

ya lol

btw ts_ski your trfc is high lower it i set mine @ 26 @ them speeds
write prechange is high too try 11

[deadman'sclick]

OK, I'll give it another shot here in a little bit. Weird things have been happening here today though. Three times my PC locked up while browsing (twice while looking at the same webpage and once on a new site I don't normally go on). I ran two loops of MemTest 86 and everything was fine, then I ran Prime 95 small FFT's for about 15 minutes with no problems. Not sure if it's at all related to anything, especially since I'm at stock right now

BTW, I figured I'd post a MemSet screen shot with the ram timings. I plan on plugging these same timings in manually since you guys said to set everything and not use Auto.

to add on zsamz last post

tRRD should be more like 2 or 3 at those Mhz, 10 seems very high t_ski

also tRTP might do better on 3 for that speed

[t_ski]

Thanks for the tips guys. All of the settings from MemSet were settings that the BIOS created when set to Auto, including Performance Level 4.

However, I got C1 errors when I tried to punch those settings in, even with Performance Level set to 6. Now that I think about it, I probably should have tried 7.

Anyway, I got a new toy in today to review, so I didn't spend much time playing with the OC. Maybe if I'm up late tonight I'll give it another shot. I already made notes of your latest suggestions, so I'll be sure to plug those in as well.

[t_ski]

OK, I messed with it some more, and it is definitely more stable now that it was before. Best I could do previously was 3.0 GHz for about 25 minutes. I just got done running prime95 @ 3.6 GHz for 30 minutes and stopped it without an error. Granted timings may be a little loose and voltages need to be tweaked, but at least I am getting there. Thanks a ton guys!

Updated info and screen shot included below... (I know - CPU temps are way too high. I'll be slapping on the EK Supreme here soon.)

[jcool]

Erm... I'd step down a bit if I was you... close to 80C ain't healthy, plus it's not gonna be stable come summer...
So step down, improve your cooling or tweak GTL and VTT so you can lower Vcore

[Origin_Unknown]

lol after my rant yesterday i went home and *seem* to have 3.8ghz stable or at least for one memtest 86+ pass stable! (which takes about an hour with 8gb )

[OnDborder]

set memory subtimings dont assume auto is ok
in fine delay set timings dont use auto use relaxed n work your way up

i found clunk's gtl setting way better board is more stable n more responsive but gets hotter
for 1.52 cpu vtt
gtl1:125
gtl2:120
gtl3: 95
heres another chart

You da man.
After reading that I shouldn't set the gtl's so high on my 8400, I set them for 86/88@1.453vtt, and gave it a run..
I'm a 3dm bencher, more or less, and I couldn't get the 01 to pass at 500x9. Well after adjusting the gtl's, 84051 http://service.futuremark.com/compare?2k1=9366055 .

Thanks for the tips everyone.
Now for the rest of the settings for a 8400.

[zsamz_]

You da man.
After reading that I shouldn't set the gtl's so high on my 8400, I set them for 86/88@1.453vtt, and gave it a run..
I'm a 3dm bencher, more or less, and I couldn't get the 01 to pass at 500x9. Well after adjusting the gtl's, 84051 http://service.futuremark.com/compare?2k1=9366055 .

Thanks for the tips everyone.
Now for the rest of the settings for a 8400.

1,453vtt is a bit high on that cpu i think
my e6850 only needs 1.5vtt for 500fsb

[OnDborder]

1.56 on the vcore
Gotta do it while it's still cool here. The heat is right around the corner..

[zsamz_]

1.56 on the vcore
Gotta do it while it's still cool here. The heat is right around the corner..

i bit high for a 8400 i think lol
i dont change habits in the summertime
i got a 10000btu portable ac close by

[t_ski]

Erm... I'd step down a bit if I was you... close to 80C ain't healthy, plus it's not gonna be stable come summer...
So step down, improve your cooling or tweak GTL and VTT so you can lower Vcore

Oh, I know it's too high. That's why I only bothered to run it for 30 minutes. When I get my new "toy" up and running I'll slap the watercooling on this chip. I'm even thinking of lapping it. Between the watercooling and lapping I think I could possibly see close to a 15C drop compared to results between this heatsink, the EK and my old CPU which both were tested on.

And I do plan on tweaking the volts some, as well as the memory. Whenever I get a chance I'll run back through the BIOS and write down all the new settings and post them up.

Thanks again guys

EDIT: OK, here are the new settings:

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

Main BIOS Page
Exist Setup Shutdown......................Mode 2
Shutdown After AC Loss....................Disabled
O. C. Fail Retry Counter..................0
CLOCK VC0 Divider.........................Auto
CPU Clock Ratio...........................9x
CPU Clock.................................400 MHz
Boot Up Clock.............................Auto
DRAM Speed................................333/800 <- DDR2-960
PCIE Clock................................100MHz
PCIE Slot Config..........................1X 1X

CPU Spread Spectrum.......................Disabled
PCIE Spread Spectrum......................Disabled
SATA Spread Spectrum......................Disabled

Voltage Setting Page 
CPU VID Control...........................1.37500V
CPU VID Special Add.......................Auto
DRAM Voltage Control......................2.23V (BIOS shows 2.2v)
SB Core/CPU PLL Voltage...................1.510V
NB Core Voltage...........................1.504V
CPU VTT Voltage...........................1.453V
VCore Droop Control.......................Enabled
Clockgen Voltage Control..................3.45V
GTL+ Buffers Strength.....................Strong
Host Slew Rate............................Weak
GTL REF Voltage Control...................Enabled
CPU GTL1/3 REF Volt.......................130
CPU GTL 0/2 REF Volt......................120
North Bridge GTL REF Volt ................100

DRAM Timing Page
Enhance Data Transmitting.................Fast
Enhance Addressing........................Fast
T2 Dispatch...............................Auto
Clock Setting Fine Delay..................Listed Below
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)...................26
Performance Level.........................7
Read Delay Phase Adjust...................Listed Below
MCH ODT Latency...........................Auto
Write to PRE Delay (tWR)..................11
Rank Write to Read (tWTR).................11
ACT to ACT Delay (tRRD)...................3
Read to Write Delay (tRDWR)...............8
Ranks Write to Write (tWRWR)..............4
Ranks Read to Read (tRDRD)................5
Ranks Write to Read (tWRRD)...............4
Read CAS# Precharge (tRTP)................3
ALL PRE to Refresh........................5

Read Delay Phase Adjust Page
Channel 1 Phase 0 Pull-In.................Auto
Channel 1 Phase 1 Pull-In.................Auto
Channel 1 Phase 2 Pull-In.................Auto
Channel 1 Phase 3 Pull-In.................Auto
Channel 1 Phase 4 Pull-In.................Auto

Channel 2 Phase 0 Pull-In.................Auto
Channel 2 Phase 1 Pull-In.................Auto
Channel 2 Phase 2 Pull-In.................Auto
Channel 2 Phase 3 Pull-In.................Auto
Channel 2 Phase 4 Pull-In.................Auto

Clock Setting Fine Delay Page
Ch1 Clock Crossing Setting................Auto
DIMM 1 Clock fine delay...................Current 156ps
DIMM 2 Clock fine delay...................Current 534pd
DIMM 1 Control fine delay.................Current 601ps
DIMM 2 Control fine delay.................Current 356ps
Ch 1 Command fine delay...................Current 868ps

Ch2 Clock Crossing Setting................Auto
DIMM 3 Clock fine delay...................Current 156
DIMM 4 Clock fine delay...................Current 467
DIMM 3 Control fine delay.................Current 445
DIMM 4 Control fine delay.................Current 434
Ch 2 Command fine delay...................Current 868

Ch1Ch2 CommonClock Setting................Auto

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

EDIT #2: Still not totally stable. Just went to run 3DM06 to compare one 3870x2 versus two @ 3.6 GHz, and the system locked up hard. I may have lost my 3DM06 install lol

[flexy]

Bios Problem:

Guys,

i still have a problem with my bios, this is either the X48 bios (3/7) or the X38 bios from march.
My settings are all OCCT/Prime stable and tested, and i already cranked up voltages,VTT,NB and tried everything:

Even if my system is OCCT stable - at reboot or coming from standby the bios sometimes resets to default - or the PC just hangs at boot and doent boot at all.
This seems to happen only with certain multis/straps. (Right now i am at 8x447 and mem at 5:6 (530). Its really annoying since eg. i want to schedule tasks to wake up the computer from standby (backups!)....but there is a good chance it just hangs there.

What can i do? Any new bios out where this is solved? This is VERY annoying..i also wonder why it only happens at certain straps.
Maybe the bios "thinks" its overclocked too high (even if its stable). If we had a fixed bios this would be very, very great.

My NB voltage is already at 1.5, Vcore at 1.45, VTT at 1.42, VMem 2.2

[OnDborder]

i bit high for a 8400 i think lol
i dont change habits in the summertime
i got a 10000btu portable ac close by

For 24/7, ya. This is just for the benching. Having fun with this setup.

[deadman'sclick]

Bios Problem:

Guys,

i still have a problem with my bios, this is either the X48 bios (3/7) or the X38 bios from march.
My settings are all OCCT/Prime stable and tested, and i already cranked up voltages,VTT,NB and tried everything:

Even if my system is OCCT stable - at reboot or coming from standby the bios sometimes resets to default - or the PC just hangs at boot and doent boot at all.
This seems to happen only with certain multis/straps. (Right now i am at 8x447 and mem at 5:6 (530). Its really annoying since eg. i want to schedule tasks to wake up the computer from standby (backups!)....but there is a good chance it just hangs there.

What can i do? Any new bios out where this is solved? This is VERY annoying..i also wonder why it only happens at certain straps.
Maybe the bios "thinks" its overclocked too high (even if its stable). If we had a fixed bios this would be very, very great.

My NB voltage is already at 1.5, Vcore at 1.45, VTT at 1.42, VMem 2.2

sounds like sumthings to tight, possibily to meny phase settings pulled in, or just slightly tight PL setting. e.g. where the PL is set close to its limit for the given timings fsb strap etc.

[Dark79]

Is this board not compatible with the Razer Barracuda AC-1? I sold mine to a friend who has this board (against my recommendation) but the board just stays stuck in a reboot cycle. I put the card in my spare rig (Biostar matx S939) and it works just fine. Anyone else try this combo?

[zsamz_]

flexy set gtl settings manually
play with settings till you good"use clunk's chart"

[zfactor]

has anyone had success with flashing to the x48 bios with the china mobo yet? im tempted but done want to kill this thing

[Jor3lBR]

has anyone had success with flashing to the x48 bios with the china mobo yet? im tempted but done want to kill this thing

Yes zsam and others have, some had taiwan others china but they have the same sst bios chip so it really doesn't matter.

I would grab a spare pre-flashed bios chip first just in case:
http://myworld.ebay.com/biosdepot/

Just specify the mobo manufacturer and model and the bios you want and they will do the rest