**Official DFI LanParty UT P35-T2R Review/Overclock/Guide Thread**

[drnick79]

Thanks Praz! (my humble apologies if you posted these screenies with the 2x2gb ram earlier).

Could you list your bios settings with the gskill 2x2gb sticks? I'm having difficulty getting them stable on the dfi X48 board and I think it would be very helpful to see how you set your bios settings (particularly voltages). Thanks again!

[drnick79]

If I get time this evening to finish the Crysis and UT3 benches I'll post up some screenshots of the E8400 at 4.0GHz, G.Skill 2x2GB at 1000MHz. Kind of a comparison to the post I did a few pages back using 2x1GB sticks.

Sweet!!! I'm running an e8400 with the 2x2gb gskills, so that will be very interesting to me to see your settings.

[Praz]

The X38/48 are going to use different settings then the P35. This is a link with the G.Skill at 1080MHz using the X38 board with XP and Vista 32/64 Bit.

http://www.csd.dficlub.org/forum/sho...1&postcount=13

[drnick79]

Hey Praz- thanks for the link!

(Just realized I was posting off topic concerning the X48 board-sorry! )

[ninjaskija]

Hey Ninjaskija,

Your RAM is 2x2gb sticks? I've had no luck with stability even at stock with my gskill 2x2gb 1066 sticks...I've had the same issues observed by Lestat in this post with my dfi X48 board and e8400 cpu:

http://www.xtremesystems.org/forums/...d.php?t=177258

If you do get them running stable at a 500fsb, would you post your bios settings? I know it's a different board and different brand of ram, but I think the gskill sticks use powerchips too. Thanks!

I think Praz mentioned some testing with 2x2gb sticks a page or two ago on this thread and I'm eagerly awaiting his findings...

Yes they are 2x2gb, and i was about to say what Praz already did about similarities between DFI P35 and X48 boards.. I'll do some new tests and i'll post the results.

@Praz ..those GSkills u used there are Powerchips?

I have another question for u guys.. How reliable is memtest for windows under Vista 64? because is the only one who gives errors now, prime blend is ok (i stopped it after 7h with no errors)

[luihed]

Some testing with Crucial Ballistix 1000:

710 mhz on memory validation:

http://valid.x86-secret.com/show_oc.php?id=341992

700 mhz S-pi 1M:

http://forum.crazypc.ro/attachment.p...7&d=1207514162

Very nice... care to share your settings?

Got an extra heatpipe so I thought Ill try something new....





73x multi really helps, makes breaking 30ghz easier lol.... and orthos stable too

[Praz]

@Praz ..those GSkills u used there are Powerchips?

Yes they are.

[ninjaskija]

Yes they are.

U have any mem settings that u can share at 500 FSB 1:1 for those? I still have problems stabilize them even after i pushed my NB voltage further...

[turtletrax]

Very nice... care to share your settings?

Got an extra heatpipe so I thought Ill try something new....



73x multi really helps, makes breaking 30ghz easier lol.... and orthos stable too

Love the work you did on the heatpipe How is it working for you?

Also, yu will have to show me how to get the 73x working

[C-N]

U have any mem settings that u can share at 500 FSB 1:1 for those? I still have problems stabilize them even after i pushed my NB voltage further...

I had no problem making 1000mhz+ with my OCZ PC2 8000 2X2GB sticks they ran 5.5.5.15.5.54 @ 2.0v with everything else on auto.

Have you tried using a divider other than 1:1 to see if you can get the RAM to run 1000mhz just in case its a 1:1 problem ?

I don't have the 8000's in my DFI P35 atm otherwise I'd check my self.

CN

[ninjaskija]

I had no problem making 1000mhz+ with my OCZ PC2 8000 2X2GB sticks they ran 5.5.5.15.5.54 @ 2.0v with everything else on auto.

Have you tried using a divider other than 1:1 to see if you can get the RAM to run 1000mhz just in case its a 1:1 problem ?

I don't have the 8000's in my DFI P35 atm otherwise I'd check my self.

CN

What program do u use for testing? I never get instability issues in prime blend(10h +) but it always failes in memtest for windows after 1h or so.

[C-N]

What program do u use for testing? I never get instability issues in prime blend(10h +) but it always failes in memtest for windows after 1h or so.

Memtest v2 http://www.memtest.org

Prime95 V256 4096k test http://www.mersenne.org/GIMPS

CN

[ninjaskija]

Memtest v2 http://www.memtest.org

Prime95 V256 4096k test http://www.mersenne.org/GIMPS

CN

another thing... should i consider any specific mem settings for vista 64? or if is stable in xp should be stable in vista to..?

[~aoe~]

Here are my BIOS settings for reference. My system specs are:

E8400 Q748A402 Pack date 02/25/08 [VID 1.1000v @ stock / 1.1125v @ 8x500] @ 4GHz (8x500)
DFI LT P35-T2R (BIOS 12/24)
4x2GB Mushkin XP2-1000 Redline @ 1000MHz
8800GTX

CPU and NB are water-cooled (graphics card is also water-cooled on a separate loop).

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

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...........................8x
CPU Clock.................................500 MHz
Boot Up Clock.............................Auto
DRAM Speed................................333/667
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...........................Auto
CPU VID Special Add.......................111.57%
DRAM Voltage Control......................2.100V
SB 1.05V Voltage..........................1.070V
SB Core/CPU PLL Voltage...................1.55V
NB Core Voltage...........................1.53V
CPU VTT Voltage...........................1.20V
VCore Droop Control.......................Disabled
Clockgen Voltage Control..................3.45V
GTL+ Buffers Strength.....................Strong
Host Slew Rate............................Weak
GTL REF Voltage Control...................Enabled
CPU GTL1/3 REF Volt.......................63
CPU GTL 0/2 REF Volt......................63
North Bridge GTL REF Volt ................67

DRAM Timing Page
Enhance Data Transmitting.................Fast
Enhance Addressing........................Fast
T2 Dispatch...............................Disabled
Clock Setting Fine Delay..................Listed Below
CAS Latency Time (tCL)....................5
RAS# to CAS# Delay (tRCD).................5
RAS# Precharge (tRP)......................5
Precharge Delay (tRAS)....................15
All Precharge to Act......................6
REF to ACT Delay (tRFC)...................52
Performance Level.........................8
Read Delay Phase Adjust...................Listed Below
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)..............Auto
Ranks Read to Read (tRDRD)................Auto
Ranks Write to Read (tWRRD)...............Auto
Read CAS# Precharge (tRTP)................3
ALL PRE to Refresh........................6

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................More Aggressive
DIMM 1 Clock fine delay...................Current 286ps
DIMM 2 Clock fine delay...................Current 912ps
Ch 1 Command fine delay...................Current 1312ps
CH 1 Control fine delay...................Current 862ps


Ch2 Clock Crossing Setting................More Aggressive
DIMM 3 Clock fine delay...................Current 137ps
DIMM 4 Clock fine delay...................Current 824ps
Ch 2 Command fine delay...................Current 1386ps
CH 2 Control fine delay...................Current 749ps

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

BIOS-reported voltages are:

CPU Core = 1.36v
DRAM = 2.08v
NB Core = 1.55
CPU VTT = 1.12v

I've disabled the Core Multi-Processing option as I believe this setting relates to hyper-threading and, to the best of my knowledge, this processor does not have this capability.

The key to stability with this Mushkin memory was setting tRFC to 52.

Performance level won't go below 8. I did try enabling Channel 1 Phase 0 Pull-In but the system wouldn't post, so I'm guessing I've reached the limit here.

The GTL settings were copied from someone else. As I have no real idea what these settings do and the system is stable, I'm happy to leave them at these values.

Memory benchmark:



The system is 18+ hours Prime stable although I have no screen shot.

Temps at 21C ambient as reported by CoreTemp are 39C idle and 53C load with large FFTs (assumes Tj max 105C).

As I reached my target overclock, I didn't try and push the system any further, although I may in the future.

[Praz]

another thing... should i consider any specific mem settings for vista 64? or if is stable in xp should be stable in vista to..?

For me what works in XP is also good for Vista 64Bit. I normally run Vista 32Bit first as it seems the most sensitive to stability issues.

U have any mem settings that u can share at 500 FSB 1:1 for those? I still have problems stabilize them even after i pushed my NB voltage further...

1:1 settings is what I'll post up as soon as I get the Crysis and UT3 benches done in XP, hopefully this evening. Here's a couple of BIOS screenshots till then.

[cantankerous]

Interesting on that core multiprocessing being disabled. I actually disabled that myself to see if I would only get a single core in my Q6600 working. That was not the case. Does the core multiprocessing really have everything to do with Hyperthreading for older P4's? Can we disable that now with no lost performance or issues?

[ninjaskija]

For me what works in XP is also good for Vista 64Bit. I normally run Vista 32Bit first as it seems the most sensitive to stability issues.


1:1 settings is what I'll post up as soon as I get the Crysis and UT3 benches done in XP, hopefully this evening. Here's a couple of BIOS screenshots till then.

well i did some further testing and this is what it came up.. I modified tRFC from 46 to 45 (don't rly know why) with the rest on Auto and is stable till now using 2 instances of win memtest (97% used memory) for 3h now. Could that be the problem?



And I think that my NB voltage is to high.. I will try lower it when i will arrive home and do some retesting.
Tx for the pics Praz.

[Praz]

tRFC has a major impact on stability with 2x2GB sticks. Usually best to start with at least 52 or 54. A higher value never hurts. Also a higher value normally allows a lower voltage to be used.

[Praz]

Post 1 of 4

E8400 03/17 BIOS
333/667 Strap/Divider
2x2GB GSkill PC2 8000
XFX8800 GTS (G92)

C1E and VDROOP enabled. VCORE was set using VID Special Add leaving VID Control on Auto. Adjusting VCORE this way allows the voltage to
decrease along with frequency while idle. Measured voltage at idle - 1.311. Measured under load - 1.374. Frequency at idle - 3000MHz.
Frequency under load - 4000MHz.

CPU Feature Page
Thermal Management Control................Enabled
PPM (EIST) Mode...........................Enabled
Limit CPUID MaxVal........................Disabled
CIE Function..............................Auto
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...........................8x
CPU Clock.................................500 MHz
Boot Up Clock.............................Auto
DRAM Speed................................333/667
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...........................Auto   1.2200V
CPU VID Special Add.......................112.28%
DRAM Voltage Control......................1.958V
SB 1.05V Voltage..........................1.070V
SB Core/CPU PLL Voltage...................1.55V
NB Core Voltage...........................1.41V
CPU VTT Voltage...........................1.170V
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.......................58
CPU GTL 0/2 REF Volt......................60
North Bridge GTL REF Volt ................62

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)......................3
Precharge Delay (tRAS)....................15
All Precharge to Act......................4
REF to ACT Delay (tRFC)...................46
Performance Level.........................8
Read Delay Phase Adjust...................Listed Below
MCH ODT Latency...........................2
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)..............Auto
Ranks Read to Read (tRDRD)................Auto
Ranks Write to Read (tWRRD)...............Auto
Read CAS# Precharge (tRTP)................3
ALL PRE to Refresh........................4

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................More Aggressive
DIMM 1 Clock fine delay...................Current 1424ps
DIMM 2 Clock fine delay...................Current 574ps
Ch 1 Command fine delay...................Current 974ps
CH 1 Control fine delay...................Current 512ps


Ch2 Clock Crossing Setting................More Aggressive
DIMM 3 Clock fine delay...................Current 1300ps
DIMM 4 Clock fine delay...................Current 486ps
Ch 2 Command fine delay...................Current 1024ps
CH 2 Control fine delay...................Current 400ps

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

[Praz]

Post 2 of 4

XP SP3










3dx Max w/V-ray
Time to render: 14min 27sec

[Praz]

Post 3 of 4

Vista 32Bit SP1













3dx Max w/V-ray
Time to render: 14min 33sec

[Praz]

Post 4 of 4

Vista 64Bit SP1













3dx Max w/V-ray 64Bit
Time to render: 15min 48sec

[sniggle]

Thanks for those results Praz. You certainly do a lot of testing...

Anyone experience issues with loading previously BIOS settings from CMOS reloaded? The specific issue I encountered was that my memory bandwidth went down for seemingly no reason when I restored known settings. I tried reloading optimized defaults and setting everything exactly the same and then suddenly I was back to normal. Seemed strange.

Currently testing the hardware in my sig at 8x 520mhz FSB 1:1. Improved memory write bandwidth quite a bit over 9x 415mhz FSB 5:6.

[cantankerous]

yea, those memory speeds are quite impressive praz. I have 20mhz on your ram, tigher timings, plus have phase pull ins enabled and I dont get near what you are getting. I am on 333/800 divider however so that may have everything to do with it.

[sammurai]

E6600
FSB550