PAT disabled above 210FSB on Gigabyte KNXP!

[Dr.2K]

Hey Bigtoe, prometheous, eva....can someone tell me why on this particular motherboard PAT is auto disabled over 210FSB at 1:1 with timings at 2,3,3,6. cpuz 1.19 states performance mode is disabled. This never happened with my IC7-G at any FSB. Has anyone else seen this? and is there a work around?

Specs:

P4 3.0c
ocz gold 2x256 pc3700
GA-KNXP v1 / bios F6k
vcore 1.6
vdimm +.3

[ThugsRook]

i believe Tony said that if you use a SETfsb or clockgen program, you can trick the moboard into PAT if the bios is set @ 200fsb and you use the software to OC.

or something like that.

:)

[Dr.2K]

aw thats rite, lol, forgot about that. Thnks thugs!

[dbwillis]

my DFI Pro875 does the same thing...

[pointreyes]

It's a limitation that Intel 'ingrained' into the chipset design. But just like the Springdale, we see that there are ways around it. :rolleyes:

[Dr.2K]

The odd thing is, i thought the canterwood boards were supposed have PAT enabled at all times. Is this incorrect?

O and thugs, according to Tony's post on the setfsb, in order to keep PAT enabled past the 200Mhz FSB, you habe to keep your timings at 2,2,2,5 1T and use setfsb in windows while default settings are set in the bios. And his post was more directed at the springdale asus P4P800. Well, currently there is no way i can get those timings using either of the ocz gold 2x256MB pc3700 or the 2x512MB pc4000.

I tried setfsb and it seems it does not work with this board. Even after i set FSB to 200Mhz 1:1 at 2,3,3,7 in the bios and then in windows set fsb to 235, cpuz still reported PAT as being disabled.

I called gigabyte tech support and the tech guy had never heard of this situation before so he had to confirm this with taiwan head office. I am still waiting to hear from them. This is kind of disappointing. Memory bandwidth scores would be on par or a bit better i think compared to my IC7-G at all the same specs if this was not the case. On my IC7-G PAT is enabled at all times even at my top overclock of 240FSB 1:1 at 2,3,3,7.

[Dingo]

Originally posted by dbwillis
my DFI Pro875 does the same thing...

I went and checked after reading your response. PAT seems to be disabled with memory settings other than 1:1. I was able to go to 225Mhz FSB and PAT showed enabled during POST. Just as a test, I set the FSB to 200 and the memory to 320 (5:4) and PAT did not show in the POST messages.

[Dr.2K]

Dingo, double check with cpuz 1.19 and ctiaw and see if PAT/Performance is enabled.

[dbwillis]

I just checked...no PAT

See (www.thefiles.dns2go.biz/odd/dfi875pro.jpg)

[pointreyes]

I'm confused. Last night I decided to finally oc this 2.8c again. I had miserable results before and now that I have actually gotten less robust RAM in the system I expected nothing but more problems. Well the CPU-Z shows that I have PAT enabled and my FSB is a mild 214. And I'm still using the F5 bios-sorry no beta on this box, one of the reasons why it's using ECC RAM is due to the fact that this box is really a server.

[Dr.2K]

Hey points, can u see if PAT is still enabled for you if you are at or over 220FSB? If so then it is probably the bios becuz the only way i get PAT enabled is if my FSB is under 10% overclock. No word from gigabyte yet as to this situation.

[pointreyes]

Originally posted by Dr.2K
Hey points, can u see if PAT is still enabled for you if you are at or over 220FSB? If so then it is probably the bios becuz the only way i get PAT enabled is if my FSB is under 10% overclock. No word from gigabyte yet as to this situation.

I will have to check later tonight. I'm working at home today and I'm busy configuring MS ISA in w2k3 Enterprise Server on this box. :eyepop: :beat: :smash: :smash: :wack:

[Dr.2K]

Coo ok thnx points. Btw, tell me how that new os is whenever u get it settled in :) gl.

[Tony]

The problem with the DFI was supposed to have been sorted.I will ask Wes about it.

Regards the gigabite, it must be inbuilt into bios to alter chipset registers over 220fsb.They have probably done this to improve stabilirty while overclocking. Using setfsb from a windows boot at 210 fsb should get you past the problem but i do admit it will be a pain.Also nothing shows in modbin so a bios hack will not help..

[dbwillis]

Hi Tony..I also emailed DFI about any newer BETA bios' and they sent me one...but it didnt enable the PAT and also didnt have the 'user bandwith' options that the cuirrent beta has

[Dr.2K]

Hey Tony thanks for the reply. However, when i used setfsb on the gigabyte mobo, it didnt seem to work. If i use it and if PAT is enabled thru the bios, would cpuz show the new fsb setting? cuz nuttin seemd to change after when i looked. cpuz still showed FSB at 200Mhz after i set it to 230 with setfsb.

[pointreyes]

I'm at 220fsb and performance is still enabled. However, taking the board to 220fsb makes the bios automatically reduce the memory fsb to under 400. However the bus speed has increased.

Time to do more benches. Another thing to remember is that I'm using ECC ram that is enabled so maybe that is messing up CPU-Z?

[pointreyes]

Huh? Something ain't right. For months I have been trying to reach speeds like this with my 2.8c and now I do!!!! What in the world happened? Burn-in for the proc and ram? I don't understand what happened but here's the latest thing I have done:

[Dr.2K]

Well i think i will try clockgenerator to see if i can use that as a way around. O and points, yes it may be the ecc ram but i think it is more likely the bios that is causing this issue.

[pointreyes]

Another interesting find. I took the fsb to 245 and yet even though the bios read the RAM to work at 407, cpu-z reads it at 196.5 or rather 393.

My memory throughput has actually decreased and even if I take the fsb to 214 which does make the ram work at >400 I cannot reach the scores I used to. :(

[Tony]

can you not force 1:1 with the 400 setting for the ram?

[Dingo]

Originally posted by Dr.2K
Dingo, double check with cpuz 1.19 and ctiaw and see if PAT/Performance is enabled.

Well...checked with cpu-z 1.19 and PAT/Performance is not enabled at any speed/ram setting. I'm running 2GB RAM (2x512 Corsair XMS and 2x512 Generic PC3500). I wonder if that might be making a difference. Guess I could rip out a a gig of RAM and see what happens.

This also brings up a question. Is there any board that PAT is enabled or can be enabled with higher overclocking and with RAM settings other than 1:1? I mean at 210MHz FSB and above? I currently run between 255 and 260 on the FSB on this 2.6C.

And lastly, does anyone know of a version of SetFSB that works with the 875Pro?

If it makes any difference, I'm using the 7/22 BIOS. Previously used the 6/25 BIOS and I've got one around here from DFI that is dated 7/10.

[Dr.2K]

So Dingo, are you saying that with ur DFI board you see PAT enabled at any FSB with 1:1, but no PAT with the other dividers at any FSB?

Try clockgenerator from cpuz instead of setfsb and see if the board is listed under the compatability section. That should work.

[Dingo]

Originally posted by Dr.2K
So Dingo, are you saying that with ur DFI board you see PAT enabled at any FSB with 1:1, but no PAT with the other dividers at any FSB?

Try clockgenerator from cpuz instead of setfsb and see if the board is listed under the compatability section. That should work.

The POST messages indicate that PAT is enabled at any FSB when I have the RAM setting at 1:1. However, Cpu-Z show "Performance" as disabled at any setting. That is why I asked the question about the RAM.

Got a link handy for the "clockgenerator"?

[edit] Found the link (http://www.cpuid.com/clockgen.php). DFI 875Pro is not in there. Any suggestions on something that might work?
[edit edit] Tried the version for the Asus P4P/P4C boards and it seems to effect/work for 875Pro. At least it adjusted the FSB.

[pointreyes]

Originally posted by Tony
can you not force 1:1 with the 400 setting for the ram?

Yes, you can override the Auto setting to be 2.0 (1:1), 1.33 (5:4), 1.66 (3:2???). I have to use a 245fsb to try to get to 400 setting for the RAM and that's with the 5:4 setting. If I use 1:1 I must allow the RAM to run as something like 480-something I would seriously doubt is possible with my RAM.

[Dr.2K]

Well Dingo try running some memory benches with and without the use of the setfsb. Also, this program should give u a more accurate account if PAT is enabled or not.


ctiaw (http://translate.google.com/translate?hl=en&sl=de&u=http://www.heise.de/ct/ftp/ctsi.shtml&prev=/search%3Fq%3Dctiaw%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8)

Look down the page and find ctiaw. Then just d/l and unzip it and run the ctiaw.exe and not the other ctia.exe This is from Tony's thread on the abx forums, which seems to be currently down.

[Dr.2K]

Well by using the newest version on cpuz 1.19a, i can now see that the fsb and the clock frequency has changed using clockgenerator and setfsb, lol, i guess i would help if you had the latest versions :p . However, sandra doesnt seem to want to acknowledge the new frequency or fsb overclock. Memory scores are still the same as default in the bios. Does anyone know of any benchmark programs that are sensitive to the overclocks from windows? Tony? Hawk? Mikki? Eva? anyone......? :wave: :wave: :wave:

[dbwillis]

on the Dfi board, Im using the latest beta bios that has 'user bandwith' adjustable in the BIOS....seems to be a good option...

[Tony]

Originally posted by Dr.2K
Well by using the newest version on cpuz 1.19a, i can now see that the fsb and the clock frequency has changed using clockgenerator and setfsb, lol, i guess i would help if you had the latest versions :p . However, sandra doesnt seem to want to acknowledge the new frequency or fsb overclock. Memory scores are still the same as default in the bios. Does anyone know of any benchmark programs that are sensitive to the overclocks from windows? Tony? Hawk? Mikki? Eva? anyone......? :wave: :wave: :wave:

ctiaw or mbench will show increases.You can get ctiaw from the link above or mbench from the link here.

[eva2000]

Originally posted by Dr.2K
Well by using the newest version on cpuz 1.19a, i can now see that the fsb and the clock frequency has changed using clockgenerator and setfsb, lol, i guess i would help if you had the latest versions :p . However, sandra doesnt seem to want to acknowledge the new frequency or fsb overclock. Memory scores are still the same as default in the bios. Does anyone know of any benchmark programs that are sensitive to the overclocks from windows? Tony? Hawk? Mikki? Eva? anyone......? :wave: :wave: :wave: sandra doesn't recognise changes but sciencemark2 does l http://www.fileshosts.com/files/sciencemark/ScienceMark2.zip so does Aida32

[Dr.2K]

Great! Thanks Tony and eva!:)

[pointreyes]

Originally posted by Dr.2K
Well by using the newest version on cpuz 1.19a, i can now see that the fsb and the clock frequency has changed using clockgenerator and setfsb, lol, i guess i would help if you had the latest versions :p .

Hmmm, you didn't notice what version I was using on my print screens? Or is that what clued you in on a newer version being available. I admit-I was being a little devil waiting for you to figure out that I was using the newer version. :p :deviltail

The avatar I have is actually the FreeBSD mascot but I think it has affected me in other ways. :look: :p :)

[Dr.2K]

LOL points! well it seems that all is good with this mobo if you use the clockgenerator or setfsb to get past the bios automatically disabling PAT at over 210FSB at 1:1 in the bios. I did the benches with Aida32 and it sure does make a hell of a difference. Anywhere between 300-400 points. I used 2x256 OCZ gold at 240FSB 1:1 with my 3.0c at 2,3,3,6 timings.

Well until gigabyte comes out with a bios to remedy this problem, i guess this is the only workaround for now. Just as good or even better i think cause when the system reboots you dont have to go back into the bios and mess with the settings except for the timings that is. You just set it at 200Mhz and do it in windows. Kinda convenient in some ways, hehe. And again thanks Tony, eva, points and everyone else for their help and input with this.