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

[jimmyz]

9/13 official bios is out.hope it solves some of the issues you guys are having.http://us.dfi.com.tw/Support/Downloa...FLAG=A&SITE=US

btw, anybody find a way to lock pcie bus seperate from the pci or do they have to clock in synch?

[Brother Esau]

GROOVY ....LOL....I guess I am not in Moving Overclock Violation with 9/13/07 Beta now


UPDATE:.........For those concerned with the limited space between X16 PCI-E Slot and RAM Slots for Corsair Dominator Ram Cooler Clearance issues " Don't worry"! It fits just fine (Just Barely) but it fits without creating permanent bend of GFX Card over time, just do what I did and put 3 layers of electrical tape on the "Convex" bend where the ram clips go.

[Booj]

I see a few of you guys are running close to or max of 1.6v cpu vtt. Is that suitable for short benching only?

I'm on the official 13/9 BIOS now but i'm still having trouble getting prime blend stable with my G0 Q6600 over 400x9. It will do small fft all day at that setting. I've spent some time tweaking a few things.. Best i've got to is about 50mins prime blend before failing. I'm lurking everyday at the Tech Repository for FCG/Tony BIOS guide

I stuck a B2 E6300 in and it was good for 480x7 large fft so It has to be an issue with the Quad. with the quad max fsb i've gotten is a 475x6 spi 1m.

Sorry that sounds negative, but actually I love the board. It get on well with my Team Xtreem PC8500 cas4 sticks.

[Raja@ASUS]

vcore around 1.4, GTl's to 115/115/155 @ VTT 1.6, vnb to 1.61. Vcore droop to disabled should see you start to climb, as long a dram parameters are correct..

regards
Raja

[RLM]

A:\AWDFLASH.EXE LP35D913.BIN /CD /CP /CC /PY /CKS /SN /QI /LD /WB /E

The last Switching Parameter /E brings you back to A:\ Prompt //// after you Flash at that point I re enter the whole shpeel above once more and Flash a second time which results in a cleaner Flash and less chance of anything not getting over written the first time.........My buddy... Robert...(Rgone) taught me that trick with my D.F.I Expert Board

Brother Esau, if you check out the autoexec.bat, all but the /E switch are already in there.

@echo off
cls
@ECHO OFF
A:\AWDFLASH LP35D913.BIN /cks/sn/py/cc/cd/cp/ld/qi/WB
echo "The version of BIOS was inaccurate,"
echo "Please remove the floppy, download the right one and re-flash."
@ECHO OFF

Something I've noticed with my usb key. If you just change hard disk boot priority to your usb key, then the autoexec doesn't automatically run.

To get autoexec.bat to run automatically, I've found changing the USB Storage Function to FDD, and selecting first boot device to USB/ZIP does the trick.

RLM

[RLM]

eva2000 you're a star ,

Thanks for taking the time to delve into this.

Likewise I've been convinced the CLK, had a lot to do with C1 problems.

Yesterday I was almost convinced I needed a .5 setting though.

Will check out your post again.

Thanks a lot.

RLM

[Brother Esau]

Brother Esau, if you check out the autoexec.bat, all but the /E switch are already in there.



Something I've noticed with my usb key. If you just change hard disk boot priority to your usb key, then the autoexec doesn't automatically run.

To get autoexec.bat to run automatically, I've found changing the USB Storage Function to FDD, and selecting first boot device to USB/ZIP does the trick.

RLM

Good Morning RLM I was sent the 9/13/07 Beta by Andre and it was just the .bin file and the Award Flash utility so I ran my own switching parameters and did everything manually.

[RLM]

Well still squealing like a little piggy, but seem to be making some headroom with the 9/13 bios. A thumbs up there.

Went for the double flash like Brother Esau, and a cmos flush.

Haven't nailed the gtl refs yet. 110/110/115 no different to 115/115/115. Would probably be more evident with longer prime runs. Thinking of reducing the vcore a tad, so barely stable and see what setting give me the longest stability in prime. Need a bit of time on that one.

Memory also needs work. At 1:1 4-4-4-12 with fast settings, prime failed after about 15 minutes. That was with higher NB, Vdimm and VTT than I have here. Will have to experiment there.

Hopefully can get a bit of work done now We'll see.

Large FTT 425x9 3.825ghz Memory 850 mhz 4-4-4-12-36 Perf lev 7


RLM

[Booj]

vcore around 1.4, GTl's to 115/115/155 @ VTT 1.6, vnb to 1.61. Vcore droop to disabled should see you start to climb, as long a dram parameters are correct..

regards
Raja

Great! Thanks Raja! That NB GTL ref is quite a bit higher than I had tried up until now. The extra CPU VTT surely helps too. I was reluctant to set any DFI voltage option to the max out of fear of the board going up in flames.

Heres a screen of 1hr blend at 400x9, Fingers crossed it can go a while longer.



I have some water cooling gear on the way. A Swiftech Apogee GT, MCR320 rad, MCP655 pump etc. I am very much looking forward to seeing where I can bench from here.

Cheers
Chris

[RLM]

Just to confirm. If you open autoexec.bat in notepad, and add the /e switch to the end and save, it will do the trick.

You then just need to type autoexec.bat to repeat the flash.

RLM

[Raja@ASUS]

Np Booj, you should start to climb upwards now. As for CLK timings. WIth the right ram and Cas 5 the board can run quads upto 463 fsb on the 266 strap (1.65 vnb) and around ddr 1160, a.latency a nice 48 or so (which gives nice 'intelligent volt' performance), all clock defaults to 'more aggressive'. Oskar already stated to try 1-2 digits away from the default clock parameters if you believe you are experiencing bouts of instability.

Cas 5 gives a very good balance of performance/voltage on this board with speeds around 1120-1200mhz depending on fsb ratios. This is all micron D9 territory for the most part, with aggressive timings and some of the subtimings set manually...


regards
Raja

[Seanie's Show]

I see a few of you guys are running close to or max of 1.6v cpu vtt. Is that suitable for short benching only?

I'm on the official 13/9 BIOS now but i'm still having trouble getting prime blend stable with my G0 Q6600 over 400x9. It will do small fft all day at that setting. I've spent some time tweaking a few things.. Best i've got to is about 50mins prime blend before failing. I'm lurking everyday at the Tech Repository for FCG/Tony BIOS guide

I stuck a B2 E6300 in and it was good for 480x7 large fft so It has to be an issue with the Quad. with the quad max fsb i've gotten is a 475x6 spi 1m.

Sorry that sounds negative, but actually I love the board. It get on well with my Team Xtreem PC8500 cas4 sticks.

I know exactly how you feel, my G0 stepping quad posts and boots to windows vista at 3.8-3.9ghz, but I am struggling to get it stable anything over 400mhz FSB on this board (3.6ghz), upto 400mhz I have the following settings and will blend prime all day and all week with my crucial ballistix 667mhz at 1000mhz:

CPU = 1.45v, RAM = 2.23v, FSB VTT = 1.38v, NB = 1.45v, SB = 1.15v, GTL's all currently Disabled, Clock Gen = 3.45v, mem is running at 4-4-4-12 @ 1000mhz.

However even at 401 FSB everything becomes unstable, I just dont get it, ive tried bumping up voltages etc and it doesnt seem to make any difference, im not willing to run the NB at 1.6v 24/7 as it already gets hot enough (47oC with a fan on it whilst blending).

I was testing memory earlier incase that was the problem, and the memory was stable no matter what dividers I used all the way upto 1000mhz 4-4-4-12, some of this testing was done with the board and the CPU at stocks, others required the FSB moving up and the multiplier on the CPU dropping to keep the CPU at stocks, but once again, the minuite I pushed the FSB over 400 it was failing memtest again, I think the setting I had on the ram at the time was 333/800. at 400FSB it was at 960mhz so I pushed the FSB to 416 to put the ram at 999mhz (1000mhz) and like I said it was failing memtest.

Below is a kind of review I just typed up for myself to keep myself in check, so I knew what I had tried and what I had'nt, feel free to download it and have a look, then hopefully someone might beable to answer both of our issues.

[RLM]

CPU = 1.45v, RAM = 2.23v, FSB VTT = 1.38v, NB = 1.45v, SB = 1.15v, GTL's all currently Disabled, Clock Gen = 3.45v, mem is running at 4-4-4-12 @ 1000mhz.

You need to up your VTT and NB. No avoiding it. You might not want to hit 1.6+v, but you will have to try 1.5+v.

Gtl refs, I've found around the x67 start point pretty good, say NB=1.55 (1.57) VTT = 1.53 (1.55) Gtl refs 105/105/112. There's no guarantee, but this has worked for me.

Well on the cpu side of things anyway.

RLM

[Praz]

GTL's all currently Disabled

Going to be different depending on the individual board/processor but a person isn't going to get far without adjustment of GTL settings. Higher clocks can be forced with the use of voltage but not much will be gained.

[Chanana]

I recently made my dfi lanparty p35

Q6600 GO stepping
Corsair XMS2 2gb DDR2 800 TWIN2X2048-6400C4PRO
1xWD Raptor
2xradeon 2600XT

I just updated my BIOS but i was wondering if someone can give me a tip o exactly a list of what should i change to have only (i dont ask for more) 3.2ghz in my processor and the correct settings for a Cas4 memory
thanks a lot!

[Brother Esau]

3.4ghz 333/667 All you need to do is set you're Vcore around 1.32v Raise NB vcore 1.45v
CPU VTT 1.35 disable vdroop control Enable GTL ref voltage leave at 94-94-100 set primary memory timings and do a bunch of reading and then do allot more reading after that!

Keep in mind those voltage settings "should" get you going but.......everything goes by individual Hardware basis and no guarantees what works for me or anyone else will work for you! You also may find that you're processor does not need that much vcore or it may need quite a bit more and only you will know when you try!

[Raja@ASUS]

I know exactly how you feel, my G0 stepping quad posts and boots to windows vista at 3.8-3.9ghz, but I am struggling to get it stable anything over 400mhz FSB on this board (3.6ghz), upto 400mhz I have the following settings and will blend prime all day and all week with my crucial ballistix 667mhz at 1000mhz:

CPU = 1.45v, RAM = 2.23v, FSB VTT = 1.38v, NB = 1.45v, SB = 1.15v, GTL's all currently Disabled, Clock Gen = 3.45v, mem is running at 4-4-4-12 @ 1000mhz.

However even at 401 FSB everything becomes unstable, I just dont get it, i've tried bumping up voltages etc and it doesnt seem to make any difference, im not willing to run the NB at 1.6v 24/7 as it already gets hot enough (47oC with a fan on it whilst blending).

I was testing memory earlier in case that was the problem, and the memory was stable no matter what dividers I used all the way upto 1000mhz 4-4-4-12, some of this testing was done with the board and the CPU at stocks, others required the FSB moving up and the multiplier on the CPU dropping to keep the CPU at stocks, but once again, the minuite I pushed the FSB over 400 it was failing memtest again, I think the setting I had on the ram at the time was 333/800. at 400FSB it was at 960mhz so I pushed the FSB to 416 to put the ram at 999mhz (1000mhz) and like I said it was failing memtest.

Below is a kind of review I just typed up for myself to keep myself in check, so I knew what I had tried and what I had'nt, feel free to download it and have a look, then hopefully someone might be able to answer both of our issues.

The primary mistake you are making is leaving the GTL ref's on disabled, even with VTT point of 1.38 and suitably applied GTL's you would see more success. The GTL's need to operate within a margin of VTT, typically around 1-2% within 67% of VTT, anything below or above this margin will likely fail to hold steady (unless you have a real freak processor)


A side effect of Cas 4 is that VNB and Vdimm will need to be higher than Cas 5 clocks. Check Kris's article on CAS related overclocking margins over at the Tech Repository.

Cas 4 on DDR 667 ram, which is not binned as Micron D9GKX, will need quitwe a voltage bump in some cases to scale, bear this in mind...

The 266 strap and divider combo's will operate Performance level 6 on this board upto around 463 fsb (266/667 divider). The 333 strap will give a margin of around 10-15 fsb over the 266 strap for absolute stability (333 strap loses latency and fsb overhead is a little low to claw back the deficit), however I feel that the 266 strap is the sweet performance ratio for Quad core clocking on this board (if not benching for extreme cpu mhz).

1.5vnb will get you 400fsb ddr 1200 Cas 5 on this board. Cas 4 gives the NB a harder time, so one has no choice but to bump VNB to provide suffcient overhead for the lower latency. 450fsb will require 1.61-1.65 VNB @ Cas 5 , with suitably low VDimm on good ram. 400 Fsb should come with VTT of around 1.50v (using the appropriate GTL ranges) and upwards, or less if you are prepared to put in the time to study how much VTT/GTL your setup can get away with.

It's just a matter of you picking a range of performance and voltages within the boards abilities at a point you are comfortable with (there will have to be compromises in both directions.

regards
Raja

[Seanie's Show]

Thanks for that, the image below shows how its going at the moment, the mem is 667 CAS3 stock, micron based, not completely sure what chips are under the spreaders as ive never had them off, but from 800mhz to 1000mhz they are completely capable of CAS4, anything over 1000mhz requires it to be reduced to CAS5.

Thanks for the GTL info, I know about the 67% rule based on VTT however based on my current VTT of 1.38 that would mean I only need 95 across all 3 GTL Refs, however one thing I have noticed of recent is most people end up putting alot more GTL to the NB than the 2 cores GTL adjustments ie 115-115-155, is this NB GTL based on a different % to the CPU GTL. sorry about this question but this is the first board I have owned where GTL ref has played such a big part, my last DFI was the Expert 939, everything beyond that was ASUS.

[Raja@ASUS]

Upto 450fsb matching VNB and VTT levels is quite effective. Hence the 1.61 VNB setting with a VTT of 1.6 (1.58 real), falls in at a nice 115/115/115 or so, close enough.

You may find that matching up with lower VTT/VNB/GTL's work, however, you will approach ratios of FSB where under 1.5VNB just won't hold the bandwidth.

I cannot in any way beat the Prime stable @ 3.6 with any other combination of settings for equivalent CPU mhz (prime stable that is). The only way to do so would be to run cas 4 with a very good pair of sticks that can run near 1100 or so with less than 2.27V (within warranty specs), at 450 fsb Cas 4 (on the same dividers), the VNB is likely to need another boost.

Hence why I thought 8x450fsb 2.1vdimm @ Cas 5 was so effective and gives superior performance to ddr 1200 cas 5 @ 400fsb on the 9x multi.. 1.61 on the NB will not put as much strain as prolonged use of DDR2 over 2.25v, 2.1vdimm really is sweet for the performance the 450fsb point gives on the 266 divider.

Once my Cas 4 ram gets back from RMA I will be in a position to watercool the CPU for in excess of 3.8ghz stable, then I shall be looking for around 430fsb @ Cas 4, to see what kind of voltages are required to hold the board/cpu/mem down...

regards
Raja