DFI LANparty DK P45-T2RS/T3RS (Intel P45) - News|Info|Results

[Praz]

gone through the whole thread and no quad result here
So i share mine cheers

Honestly, if I had to run the memory at 5-6-6 with tRD at 11 to get 500 FSB I wouldn't even bother. Tighter timings with a lower FSB would give better performance. This is assuming the settings are stable. Hard to tell with a 32M screenshot.

[tamashumi]

Thank you guys for tips. Some good news (below)

You are quite correct 400/800 & 333/667 are both 1:1 but they use different straps. The 400 strap should be easier to run than the 333 strap but I haven't actually tested it on this board. It wont cost you anything but time to play/try the 333 strap so IMO its worth a go.

Indeed it was worth of playing. I get bios-posted my rig @ 533MHz Even windows started to loading, ofc it hasn't loaded at all ;]

I was referring to slackening the timings off from my 2gb setting if you were trying my exact timings as posted. My 4GB kits would not even run tRFC at 28~30 they need to be 46 + to get any joy out of them.

I used your insane voltages to get this result and most of settings but this time timings was left on auto. My 4GB kit is 1100MHz cl5-5-5-15 by default, so 1066 shouldn't cause instability I guess - am I right? Not sure about tRFC...
Speaking about voltages, what temp do you have on NB? Mine is ~60 right after turning on, checked in PC Health at bios. Isn't that to much for stable work?

No one here did not mention anything about the amount of memory shown in Windows XP 32bit...

Nope you didn't read to fast. There was nothing about this it the thread. Sorry I won't help - 64bit OS here. I recommend to use such xD

Yea right,in theory but in practice i am able to hit 650 fsb benchable on air,and in 400/800 i cannot post at all

Similar here. I can't even post with 400/800. btw. what NB voltage do you use for such high fsb?

these days strap has only minor changes on board since the big one that was traditionally rolled in used to be tRD. Now that it's pulled out, the chipset strap is mostly just for setting memory dividers. I believe it also affects the phase offset applied for clock splitting on the MCH. I think instabilities that come out from these phase offsets are what causes FSB "holes" the majority of the time. Playing with GTL adjustments and timing offsets can sometimes bring you back into a stable regime but this still ends up being wandering in the dark unless you have a good oscilloscope handy.

Well I heard "something" about this strap-crap thingy... Guess I need to get more knowledge about how it affects stability. I have access to really good oscilloscope or maybe even two But I'm not familiar with use of it. Those are my father's toys ;P Maybe I'll ask him to do some measurement for me or teach me how to do it myself. But I need to know what to measure in the 1st place xD


Now I'm bit confused. Not sure to replace for the plus version or look more stability with non-plus. For now I've tested 400FSB and it seems to be stable (it wasn't before with 400:800).
I've run for stability test: 1 core SuperPi 32M and the other core single thread of Prime95 large FFTs (max heat & power...) at the same time. If SuperPi done its calculation successful while Prime still runs without an error I'm starting to consider the setting stable :]


One more thing, my rig seems to be strongly undervolted.
Examples:
NB 1.285V @ BIOS => 1.24V @ SmartGuardian
VTT 1.26V @ BIOS => 1.23V @ SmartGuardian
CPU 1.31+V @ BIOS => 1.29V @ SmartGuardian
RAM 1.908V @ BIOS => 1.88V @ SmartGuardian
What can cause this, PSU, mobo itself or something else?

[C-N]

Thank you guys for tips. Some good news (below)

Indeed it was worth of playing. I get bios-posted my rig @ 533MHz Even windows started to loading, ofc it hasn't loaded at all ;]

I used your insane voltages to get this result and most of settings but this time timings was left on auto. My 4GB kit is 1100MHz cl5-5-5-15 by default, so 1066 shouldn't cause instability I guess - am I right? Not sure about tRFC...
Speaking about voltages, what temp do you have on NB? Mine is ~60 right after turning on, checked in PC Health at bios. Isn't that to much for stable work?

Now I'm bit confused. Not sure to replace for the plus version or look more stability with non-plus. For now I've tested 400FSB and it seems to be stable (it wasn't before with 400:800).
I've run for stability test: 1 core SuperPi 32M and the other core single thread of Prime95 large FFTs (max heat & power...) at the same time. If SuperPi done its calculation successful while Prime still runs without an error I'm starting to consider the setting stable :]


One more thing, my rig seems to be strongly undervolted.
Examples:
NB 1.285V @ BIOS => 1.24V @ SmartGuardian
VTT 1.26V @ BIOS => 1.23V @ SmartGuardian
CPU 1.31+V @ BIOS => 1.29V @ SmartGuardian
RAM 1.908V @ BIOS => 1.88V @ SmartGuardian
What can cause this, PSU, mobo itself or something else?

Happy days my friend thats great news

On the subject of insane voltages I took a look at the P45 spec sheet & Intel reckon absolute max should be 1.21v

tRFC makes all the difference when you want every last mhz out of your RAM.

My NB temp is 42~43oC under load with a slow 80mm fan on it.

Stick with your non plus board & spend some time with it I'm sure it'll come good oh & my voltages appear lower in SG too but the few I have measured actually read slightly over on a DMM.

Anybody got the voltage read points for this board ?

[RaMmElEe]

Honestly, if I had to run the memory at 5-6-6 with tRD at 11 to get 500 FSB I wouldn't even bother. Tighter timings with a lower FSB would give better performance. This is assuming the settings are stable. Hard to tell with a 32M screenshot.

did i mention anything about performance or stable?
you can always do whatever setting you want to your rig, but it had nothing to do with me!

some more result to share on how this board can do with a 65nm C2Q

[cole2109]

No one here did not mention anything about the amount of memory shown in Windows XP 32bit (maybe I just read too fast and slappy). Because on my Plus, with 2x2GB Xtreem Dark kit, system only recognize 2GB of memory. And also task manager reports 2 gigs of memery (in KB of course). Neither PAE switch doesn't help. So, this is the actual amount that OS can use, right? Or it is just shown false? BIOS version is A3. Before that, it was 0910 and XP showed 2.75GB.

Tnx!

The same problem! Anyone with 4gb and XP?

[tamashumi]

Happy days my friend thats great news

On the subject of insane voltages I took a look at the P45 spec sheet & Intel reckon absolute max should be 1.21v

tRFC makes all the difference when you want every last mhz out of your RAM.

My NB temp is 42~43oC under load with a slow 80mm fan on it.

Thanks

...probably something wrong with NB heatsink on my mobo as I have fan on it too. 120mm over NB, ram and partially CPU - it's just laid on them but blowing fine. Probably heatsink doesn't fit well. Someone posted before about such issue with this board. Maybe smash with a hammer make it fits good xD

[Sepander]

The same problem! Anyone with 4gb and XP?

I have XP SP3 and 4Gb ram (4x1Gb Transcend axeram). Task manager reports 3,14Gigs of memory. Seems to be normal.

Revision A3, BIOS 10/3, PAE disabled.

[cole2109]

Hmmm...
With 10/3 BIOS task manager reports 2gb
With 12/8 BIOS task manager reports 2.75gb
I have XP SP2

WTF?

[alpha0ne]

The same problem! Anyone with 4gb and XP?

Ever used google..............this thread is about the DFI P45 motherboard............ NOT about answering minor quiries that could be answered in 15 seconds using google

[GaS]

I do have SP3, but 2x2GB. Maybe some BIOS memory settings affect this issue?

edit:

Ever used google..............this thread is about the DFI P45 motherboard............ NOT about answering minor quiries that could be answered in 15 seconds using google

Well show me please. And this issue is about DFI P45, or did I mention some another board?

[C-N]

Hey GaS & cole2109,

Although I have all the bits to test I don't have the time today to put them all together to see how much memory my system sees. I do however remember XP just like Vista pre SP1 would only see 3.something gigs when there was 4 fitted. As far as I know XP cant address 4GB plus when you install like a HD3870/4870 or something big the OS takes away the video ram from the system RAM.

I guess what I am saying is you probably wont see anywhere near 4GB of RAM when you run fat graphics cards so if you can try a little graphics card & see if its just your OS allocating all its addressing space or I would say if it still just shows 2GB you must have a problem.

You could also use CPU-Z to check both 2gb sticks are being seen, also you could try moving channels to see if that helps/shows your RAM.

CN

[GaS]

There is no problem with both sticks, they are properly showed. I guess there is something with so called fat gfx, will try some old one. Anyway, this is a way too big (50%) memory consumption?!

[DemonEyez]

That would be nice, put my name on the petition



Yes you are right it is rather high however if you want to run fast & more aggressive then its needed for stability (at least with my board it is)

>DRAM Timing:

Enhance Data transmitting........... - Fast
Enhance Addressing.................. - Fast
T2 Dispatch......................... - Auto

>Clock Setting Fine Delay Press Enter:

Ch1 Clock Crossing Setting......... - More Aggressive

Hey's that's the info I was looking for. I'm still on:

Enhance Data transmitting........... - Auto
Enhance Addressing.................. - Auto
T2 Dispatch......................... - Disabled

Ch1 Clock Crossing Setting......... - Auto

because my vNB is only 1.30v. My main focus was on getting 9x500 Prime stable with as little voltages as needed
I'll raise it to 1.40v. Let's see if it's enough for me to do your settings.

[tamashumi]

Hmmm...
With 10/3 BIOS task manager reports 2gb
With 12/8 BIOS task manager reports 2.75gb
I have XP SP2

WTF?

32bit system can address 4GB of memory in total. That's mean RAM, graphic card memory, other devices memory and physical addresses of devices (page file also I guess). So usually in the 32bit OS one can see only 3-3.5GB.
Your graphic card has 1GB of memory, right? So including all "other stuff" mentioned above 2.75GB seems to be correct. (and the 10.3 bios is still beta so it can have some strange behavior)
Only solution is 64bit OS.

[GaS]

It is BIOS for sure.. About 64bit; maybe Windows 7

Anyway, does anyone have GX2 on the Plus version? Because they are not compatible with each other, although the system works, the performance is pretty poor. DFI has encounter problem, so it should be fix asap. I really hope so, because I have this board for like 6 weeks..

[Pcuser]

Hmm, may have to try this new bios. The beta ones im using atm arnt as good as the previous ones

[C-N]

Hey's that's the info I was looking for. I'm still on:

Enhance Data transmitting........... - Auto
Enhance Addressing.................. - Auto
T2 Dispatch......................... - Disabled

Ch1 Clock Crossing Setting......... - Auto

because my vNB is only 1.30v. My main focus was on getting 9x500 Prime stable with as little voltages as needed
I'll raise it to 1.40v. Let's see if it's enough for me to do your settings.

Let us know how you get on as it would be nice to work out whether the much coveted A3 revision of the P45 is actually a superior lower voltage chip than its A2 brother or not.

My board is currently priming 500x8.5 atm with fast/more aggressive settings & 1.54*vnb

[Aerou]

Hmmm...
With 10/3 BIOS task manager reports 2gb
With 12/8 BIOS task manager reports 2.75gb
I have XP SP2

WTF?

did you look whetther the board at POST says single or dual channel with 1003 bios?

[Alex-Ro]

Just put Flex Mode on auto,if you disable it you will have single channel only

[P_1]

Some preliminary results on the A03 bios with a q6600 L809A957 batch with 1.325 VID: so far so good(even though the batch/VID indicates that I have a bad chip...), 470 FSB. The trick is to get the hang of the GTL, VTT, and NBv/NBGTL settings. What I find useful is to find a point where the GTL, VTT, and NBv/NBGTL settings all work for a specific fsb, and then up these settings to the "next level" so to speak. So its kind of like finding out how much more voltage your chip can take at a specific fsb. The reasoning behind this is that if you can find that next level on ur current fsb, the next step up fsb will be semi stable on these settings. Then you tweak the voltages to be stable again for the new fsb, rinse and repeat until you get your desired fsb. This logic may be incorrect but its working out for me so far, I went from a wall at 410 FSB to 450 FSB to 470 FSB, and now hoping to hit 500 FSB. Another thing is that I find when setting these "levels" my NBv and VTT on the bios sensors are the same usually for stability. Meaning I might be setting 1.425 for NBv and 1.409 for VTT, but in the bios sensors they both read 1.4v.

Also another note, the best tool to test for VTT/GTL/NBv/NBGTL stability is prime95, for me whenever a core crashed, I just had to up my NBGTL or NBv+NBGTL to get it to not crash. After prime runs for about 15 minutes I would switch over to LinX to test overall fsb stability. I find that if LinX errors then I had to raise the cpu core GTLs up to gain stability. Otherwise if LinX crashes and freezes your computer then you need the "next level" of voltages to get the FSB stable.

Hopefully this helps anyone with trouble on this board. I also want to add that this board is really amazing for what it can do on just 4 phases, with vdroop off I get rock stable vcore, with vdroop on I get rock stable vcore after it droops. Really great board with the latest a03 bios.

[SeLecT]

Update Post #1

[DemonEyez]

Let us know how you get on as it would be nice to work out whether the much coveted A3 revision of the P45 is actually a superior lower voltage chip than its A2 brother or not.

My board is currently priming 500x8.5 atm with fast/more aggressive settings & 1.54*vnb

Right now I'm running Othos for 1.5 hours stable with your settings at 9x500. vNB is 1.41v right now, I have to do some further testing and see if I can lower it.

With vNB @ 1.41v I'm running as follows:

CPU Clock Ratio........................... 9x
CPU Clock................................... 500
DRAM Speed............................... 333/800

Enhance Data transmitting............. Fast
Enhance Addressing...................... Fast
T2 Dispatch................................. Disabled

Ch1 Clock Crossing Setting............ More Aggressive
Ch2 Clock Crossing Setting............ More Aggressive
CH1CH2 CommonClock Setting........ More Aggressive

[emoners]

@P_1: could you post your bios settings? thanks

[emoners]

by the way, for the LANPARTY JR P45-T2RS... Beta Bios 2008/10/07

Major Reasons of Change:
1. Support DRAM Speed 266/1066 and 333/1066.
2. Patch for JMB368 and ICH10 SATA not in native mode hang"75".
3. Fixed Can not detect CPU name when use Q9xxx CPUs.

[M4ster1]

Is this Board (P45-T2RS Plus) recommendable for Quads (specifically: Q9950 E0)? I mean, it only has four phases...
And, are there any differences regarding OC between P45 A02 and A03?