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

[eva2000]

At least I know it's not just me.Trying to figure that one out myself.

Yeah.. check this out.. some further evidence

2x1GB Crucial Ballistix PC2-8500 Tracer @643Mhz 5-5-5-9 at 2.23v

Having too much fun with clock fine delay tweaking, really brings new life to my Crucial Ballistix PC2-8500 non-Tracer / Tracer memory modules!

Swapped in a 3rd kit, this time in dimm slot 2+4 with 2x1GB Cruciall Ballistix PC2-8500 Tracer modules. At first had troubles even with 600Mhz 5-5-5-9 PL6 at 2.19v with memtest86+ v1.70 test #5 having a few errors on 1st pass. Fine tune clock fine delay values and I'm memtesting without problems at 640Mhz 5-5-5-9 PL6 at same 2.19v vdimm ! 645Mhz 5-5-5-9 PL6 took only 2.23v bios set for single Super Pi 32M!!!!

This particular set of Ballistix Tracers took 2.4-2.45v to do 651mhz 5-5-5-15 on Asus P5K Deluxe!.







DFI LP LT X38-T2R Bios Settings

PC Health Status
Adjust CPU Temp: +7C

CPU Feature
- Thermal Management Control: Disabled
- PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- 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: 8x
- Target CPU Clock: 3433
CPU Clock: 429
Boot Up Clock: AUTO
DRAM Speed: 266/800
- Target DRAM Speed: 1290
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

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

Voltage Settings
CPU VID Control: 1.2875
CPU VID Special Add: AUTO
DRAM Voltage Control: 2.23
SB Core/CPU PLL Voltage: 1.51
NB Core Voltage: 1.591
CPU VTT Voltage: 1.382
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: 110
x CPU GTL 0/2 REF Volt: 110
x North Bridge GTL REF Volt: 110

DRAM Timing
- Enhance Data transmitting: FAST
- Enhance Addressing: FAST
- T2 Dispatch: Enabled

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: More Aggressive
- DIMM 1 Clock fine delay: 7 (raised from Current 2)
- DIMM 2 Clock fine delay: 7
- Ch 1 Command fine delay: 10
- Ch 1 Control fine delay: 7


Ch2 Clock Crossing Setting: More Aggressive
- DIMM 3 Clock fine delay: 7 (raised from Current 2)
- DIMM 4 Clock fine delay: 6
- Ch 2 Command fine delay: 10
- Ch 2 Control fine delay: 6

Ch1Ch2 CommonClock Setting: More 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 (where cpuz sees 1T or 2T SETTING)

CAS Latency Time (tCL): 5
RAS# to CAS# Delay (tRCD): 5
RAS# Precharge (tRP): 5
Precharge Delay (tRAS): 9
All Precharge to Act: 4
REF to ACT Delay (tRFC): 30
Performance LVL (Read Delay) (tRD): 6

Read delay phase adjust: Enter

Ch1 Read delay phase (4~0)
- 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

Ch2 Read delay phase (4~0)
- 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

MCH ODT Latency: AUTO
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): 4
Ranks Read to Read (tRDRD): 5
Ranks Write to Read (tWRRD): 4
Read CAS# Precharge (tRTP): 3
ALL PRE to Refresh: 4

[EnJoY]

Very nice memory clocking there Eva!

[zsamz_]

nice clock Eva
i got 1 question
are write n copy bandwidth important for performance or is the read the most important

[Praz]

George, your posts are demonstrating what differentiates this board and the P35 from others. Using and tweaking the options Oskar has given us yields big dividends. Unfortunately to many users are buying these boards for plug-n-play and not reaping the benefits the board has to offer.

The above example is a case in point. We can say the Asus runs just as fast or faster with less fiddling required. But once the BIOS is worked the difference is benchable voltages with the Asus compared to 24/7 voltages on the DFI at the same memory speed. Maybe after seeing your posts more users will explore these BIOS options.

[eva2000]

Very nice memory clocking there Eva!

thanks... I'll move onto other divider testing later to see if same gains can be made for clock fine delay tweaking

nice clock Eva
i got 1 question
are write n copy bandwidth important for performance or is the read the most important

yup all important... latency more important than read really though

George, your posts are demonstrating what differentiates this board and the P35 from others. Using and tweaking the options Oskar has given us yields big dividends. Unfortunately to many users are buying these boards for plug-n-play and not reaping the benefits the board has to offer.

The above example is a case in point. We can say the Asus runs just as fast or faster with less fiddling required. But once the BIOS is worked the difference is benchable voltages with the Asus compared to 24/7 voltages on the DFI at the same memory speed. Maybe after seeing your posts more users will explore these BIOS options.

Yeah Asus in terms of memory is more plug and play

Right now memtesting away at 660mhz 5-5-5-9 at 2.38v

[Praz]

Right now memtesting away at 660mhz 5-5-5-9 at 2.38v

I don't think I have anything that will go past 630MHz. I'll do some runs tonight before I strip the board down and find out.

[CapFTP]

eva...did you test also 3:5 and 5:8 divider ?....i can't boot with those settings....i alredy tried to set manually some timings and act on NB voltage, but as soon as I set this divider, the mobo restart and stops in a whistle....

[eva2000]

eva...did you test also 3:5 and 5:8 divider ?....i can't boot with those settings....i alredy tried to set manually some timings and act on NB voltage, but as soon as I set this divider, the mobo restart and stops in a whistle....

not yet.. but seems 5:8 is carry over from DFI P35 chipset latencies just set too tight maybe ? try backing off alot on tRFC, PL (tRD) and/or cas 5 see if it helps.

I don't think I have anything that will go past 630MHz. I'll do some runs tonight before I strip the board down and find out.

all but 2 of my crucial 8500 kits did max out at 651mhz 5-5-5-x on Asus P35 boards but so far all doing at least 10-18mhz better on DFI X38 due to clock fine delay. Maybe you'll surpass that 630mhz barrier


2x1GB Crucial Ballistix PC2-8500 Tracer @659Mhz 5-5-5-9 at 2.38v

Even better, 640mhz 5-5-5-9 at 2.19v, 643mhz 5-5-5-9 at 2.23v and now 659mhz 5-5-5-9 at 2.38v !



Single 32M


Dual 32M






DFI LP LT X38-T2R Bios Settings

PC Health Status
Adjust CPU Temp: +7C

CPU Feature
- Thermal Management Control: Disabled
- PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- 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: 8x
- Target CPU Clock: 3515
CPU Clock: 439
Boot Up Clock: AUTO
DRAM Speed: 266/800
- Target DRAM Speed: 1320
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

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

Voltage Settings
CPU VID Control: 1.2875
CPU VID Special Add: AUTO
DRAM Voltage Control: 2.38
SB Core/CPU PLL Voltage: 1.51
NB Core Voltage: 1.604
CPU VTT Voltage: 1.387
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: 110
x CPU GTL 0/2 REF Volt: 110
x North Bridge GTL REF Volt: 110

DRAM Timing
- Enhance Data transmitting: FAST
- Enhance Addressing: FAST
- T2 Dispatch: Enabled

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: More Aggressive
- DIMM 1 Clock fine delay: 7 (raised from Current 2)
- DIMM 2 Clock fine delay: 7
- Ch 1 Command fine delay: 10
- Ch 1 Control fine delay: 7


Ch2 Clock Crossing Setting: More Aggressive
- DIMM 3 Clock fine delay: 7 (raised from Current 2)
- DIMM 4 Clock fine delay: 6
- Ch 2 Command fine delay: 10
- Ch 2 Control fine delay: 6

Ch1Ch2 CommonClock Setting: More 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 (where cpuz sees 1T or 2T SETTING)

CAS Latency Time (tCL): 5
RAS# to CAS# Delay (tRCD): 5
RAS# Precharge (tRP): 5
Precharge Delay (tRAS): 9
All Precharge to Act: 4
REF to ACT Delay (tRFC): 30
Performance LVL (Read Delay) (tRD): 6

Read delay phase adjust: Enter

Ch1 Read delay phase (4~0)
- 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

Ch2 Read delay phase (4~0)
- 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

MCH ODT Latency: AUTO
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): 4
Ranks Read to Read (tRDRD): 5
Ranks Write to Read (tWRRD): 4
Read CAS# Precharge (tRTP): 3
ALL PRE to Refresh: 4

[fireice2]

Any idea on how I can get my hands on this board? Which e-tailer ships to PR?

[Moog]

Any idea on how I can get my hands on this board? Which e-tailer ships to PR?

Newegg

[Brother Esau]

I have been going to EGG HEAD and checking past few days but they haven't Pony'ed up on the Board again

[Praz]

Even better, 640mhz 5-5-5-9 at 2.19v, 643mhz 5-5-5-9 at 2.23v and now 659mhz 5-5-5-9 at 2.38v !

Those Tracers are flat kicking butt.

[Brother Esau]

You guys need to go Back to AMD I am getting really Lonely over there

[Ace-a-Rue]

I have been going to EGG HEAD and checking past few days but they haven't Pony'ed up on the Board again

you forgot to check here for the board

http://www.motherboardpro.com/DFI-La...ATX-p-405.html

[lazy]

lol they drop the price $15 already?

[Brother Esau]

you forgot to check here for the board

http://www.motherboardpro.com/DFI-La...ATX-p-405.html

hmmmm thats odd been checking with MBP and New Egg about the same probably more leaning towards the MBP

[OnDborder]

I would like to thank Eva2000 for the screenies and bios settings

[ZeroCool101]

Just hit 4ghz with my new X38 and QX9650 Pics up soon.

[OnDborder]

Alright

[bollocks2007]

Can anybody share their experience with watercooling this baby, i'm looking at the D-Tek Fusion or the EK Supreme to cool a QX9650 into a Thermochill 120.3 What about the north & southbridge and mosfets, which would benefit the most from water and which blocks do you recommend.

[emoners]

@Eva: i noticed you didn't push much voltages on the proc & instead did some massive doses on the NB...

[Dark79]

I think my board is officially dead. I started getting a "C1" error that I can't clear. Tried all the DDR2 I have here in all 4 channels one by one. Clearing CMOS didn't help either. I never got past 3.6GHz which is pretty disappointing considering my P965 could already do 3.5GHz. Adjusting GTL values would give a minute or 2 more on OCCT, but would still fail on anything above 400FSB.

[Turrican]

i'm getting this c1 error too. since i've the board, i was never able to boot
tried all slots/cmos clear/other psu/ez clear.

my ram: 2gb kingston hyper-x pc9200

[zaer0]

had the C1 error too but fixed that. just let the mobo run few minutes with the error and hit the reset button few times.. i tried to find the problem and figured out that my ram is the problem. after getting the c1 error i switched from cellshock to ocz and it booted without errors.

[eva2000]

Those Tracers are flat kicking butt.

Yup they are.. this tracer set that does 659mhz 5-5-5-9 at 2.38v doesn't do that well on cas4 timings in that it doesn't like tRAS of 5 much past 550mhz 4-4-4-5 - tuning clock fine delay allowed me to use tRAS 5 up to 550mhz, but past 550Mhz that it likes tRAS 8 or 9 more for 4-4-4-8/9. Compared to the non-tracer i tested which had no probs with tRAS of 5.

You guys need to go Back to AMD I am getting really Lonely over there

i can imagine how lonely it is

I would like to thank Eva2000 for the screenies and bios settings

no probs

@Eva: i noticed you didn't push much voltages on the proc & instead did some massive doses on the NB...

yes my cpu doesn't need vcore increases since it's prime95 stable at 1.312v under load at 3600Mhz. So far most benchmarks been under <3600Mhz so need to touch vcore

2x1GB Crucial Ballistix PC2-8500 Tracer @601Mhz 4-4-4-9 at 2.55v
DFI LP LT X38-T2R is the first motherboard ever for me to allow me to pass Super Pi 32M at 600mhz 4-4-4-x settings below <2.60v memory voltage. After fine tuning clock and command fine delay I managed to pull off 32M @601.9Mhz 4-4-4-9 at 2.55v straight boot from bios. Then using Memset tightened tRFC and tRAS and tWR to 25, 8 and 11 (bios or 10 memset) respectively and still pass a Super Pi 32M run.

Unfortunately, it seems the Super Pi 32M time on DFI LP LT X38-T2R even at 9x401FSB 601.9Mhz 4-4-4-9 was around 2-4 seconds slower than on DFI LP UT P35-T2R @9x400FSB 600Mhz 5-4-4-5 at basically same timings/subtimings and bios tweaks.

@601.9Mhz 4-4-4-9 at 2.55v





Tightened subtimings in Memset (same windows session)



It seems to come down to bandwidth and latency differences between DFI LP LT X38-T2R vs LP UT P35-T2R.

X38-T2R


P35-T2R
Yes, tRFC and tWR is a bit tighter at 24 and 10 instead of 30 and 14 but that didn't make up for super pi or everest bandwidth differences much.


DFI LP LT X38-T2R Bios Settings

PC Health Status
Adjust CPU Temp: +7C

CPU Feature
- Thermal Management Control: Disabled
- PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- 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: 9x
- Target CPU Clock: 3618
CPU Clock: 402
Boot Up Clock: AUTO
DRAM Speed: 266/800
- Target DRAM Speed: 1206
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

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

Voltage Settings
CPU VID Control: 1.2875
CPU VID Special Add: AUTO
DRAM Voltage Control: 2.55
SB Core/CPU PLL Voltage: 1.51
NB Core Voltage: 1.617
CPU VTT Voltage: 1.393
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: 110
x CPU GTL 0/2 REF Volt: 110
x North Bridge GTL REF Volt: 110

DRAM Timing
- Enhance Data transmitting: FAST
- Enhance Addressing: FAST
- T2 Dispatch: Enabled

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: More Aggressive
- DIMM 1 Clock fine delay: 6
- DIMM 2 Clock fine delay: 5
- Ch 1 Command fine delay: 9
- Ch 1 Control fine delay: 5


Ch2 Clock Crossing Setting: More Aggressive
- DIMM 3 Clock fine delay: 6
- DIMM 4 Clock fine delay: 4
- Ch 2 Command fine delay: 9
- Ch 2 Control fine delay: 4

Ch1Ch2 CommonClock Setting: More 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 (where cpuz sees 1T or 2T SETTING)

CAS Latency Time (tCL): 4
RAS# to CAS# Delay (tRCD): 4
RAS# Precharge (tRP): 4
Precharge Delay (tRAS): 9
All Precharge to Act: 4
REF to ACT Delay (tRFC): 30
Performance LVL (Read Delay) (tRD): 5

Read delay phase adjust: Enter

Ch1 Read delay phase (4~0)
- 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

Ch2 Read delay phase (4~0)
- 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

MCH ODT Latency: AUTO
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): 4
Ranks Read to Read (tRDRD): 5
Ranks Write to Read (tWRRD): 4
Read CAS# Precharge (tRTP): 3
ALL PRE to Refresh: 4