studdering/freezing

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Rage1881

Member
Jul 8, 2005
195
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Anyone who has this problem hitching/studdering while in games. It happens suddenly then goes away. It happens all the time in guild wars, its more moderate in other games anyone??? btw im running 2500 Mobile at 2300mhz with 1024mb of ram. (have an extra stick that i bought put it in. 2 gb made no diff, i then ran memtest and 1 stick was bad. I took out the bad one and am now with 1gb again, but the studdering didnt go away with 2gb. Does anyone know why im getting hitching. I have tried several diff drivers to no avail.

Thanks
 
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Rage1881

Member
Jul 8, 2005
195
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0
just sneaking in another question here.. It is fast writes thats causing this problem.. how much performance will i loose on average by disabling it



Hi Guys,

First of I know the simple solution to games stutering and pausing for a few seconds is to turn fast writes off via bios or software.

But I wanted to know why the fast writes / stutering and pausing problem was so random? For anyone that has had this problem including myself you would have tried different drivers, bios versions, bios settings, voltages in the end we just turn fast writes off because nothing fixed the problem (for me anyway).

To cut a long story short.......

I have a ASUS 6800 Ultra 425/1100 (stock settings from ASUS)
Now the 6800 Ultra has a 400mhz Ramdac? So from the outset my card at stock speed is overclocked by 25mhz.

AGP Fast Writes communicates with the ramdac in this case 400mhz. AGP fast writes has a problem when the card is running above it's spec and it tries to reset the ramdac back to 400mhz which causes the stutering and pausing, but it's not succesfull because the card is set to 425mhz so the AGP keeps trying to reset it and we keep getting stuttering and pauses during gameplay.

So just for testing I used RivaTuner to set my 2d/3d and low power clock to 400mhz which equals the ramdac in the card. Turned AGP Fast Writes on and have been testing 3Dmark03 which I could not complete with fast writes on, Rome: Total War which I was having huge probs with fast writes on.
With no problems at all.

Is there is anyone that is having this particular problem that would be willing to run a few tests with the games/apps that are causing problems to see if this will work for you?

Hope this helps


Angelo



-=DVS=- said:
What if your card is GT and it runs stock 350 MHZ would that make DAC run at 350 ? or should it couse stuttering becouse dac must run at 400 according to your info ??

Anyway i don't have Nforce 3 , but got VIA based mobo and no problem with Fastwrites on.
Click to expand...

Let's say your 6800GT has a ramdac of 350mhz but your card is running at 400mhz and you are getting stuttering etc... What I mean is lower the clock rate to equal your ramdac (all 3 clock rates which is 2d/3d and low power rate).

The VIA chipset doesnt seem to have this problem.


QUOTE=-=DVS=-]So you saying GT and Ultra models have different DAC or even lower models ? i though it was same for all models. In that case it should not matter what megahertz your GPU runs at.

And if GPU MHz equal DAC then what ? Radeons at core 500 have DAC of 500 ? makes no sense realy. I was sure that all todays cards got DAC at 400 ?[/QUOTE]

No it was just an example all geforce 6800 have a 400mhz Ramdac. What I am saying is with the nforce 3 (Socket 939 by the way) chipset and AGP Fastwrites on if your gpu is clocked higher than your ramdac thats when problems occur. This has worked for me and thats why I asked for others to test this as well.

DJB said:
What it the world makes you think that the ramdac speed is in any way tied into the GPU speed? Raising and lowering your core speed has no affect on the speed of the ramdac.

DJB
Click to expand...

OK. It seems i am totaly wrong about the ramdac. :bash:
So it's purely to do with Fastwrites and GPU & DDR3 speeds?

At factory defaults (on my card anyway) 425/1100 for 3D/2D & Low Power 3D with Fastwrites on, games stutter and pause consitantly. With Fastwrites off no problems.

At 400/1100 3D/2d & Low Power 3D Fastwrites on no problems. With Fastwrites off no problems.

I guess it's pointless going on about it, I was just curious about why it was happening on the nforce 3 939 boards. I also have a Asus A8V (Via Chipset) that doesnt suffer from these problems.

Regards


can anyone confirm this... or offer a better explanation
 
D

Dimmu

Senior member
Jun 24, 2005
890
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0
fast write doesn't do too terribly much. my guess is if you disable it you won't even notice a difference.
 
R

Rage1881

Member
Jul 8, 2005
195
0
0
ya now that i turned off backround apps and cleaned my system all games play fine... except guild wars which still studders... have any clues as why that is... i set there recommened page size.. defraged. Lowered settings ran at stock speeds... same studdering still. So its not a performance thing. Rather some stupid thing causing the studdering in only guild wars. I know someone must have this problem. I did a search here and found some stuff, but nothing i didnt know. I found a couple threads here, where peoples guild wars simply froze every 5 minutes, some guy mentioned the studdering but he didnt get an answer.... So anyone know whats up
 
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Rage1881

Member
Jul 8, 2005
195
0
0
R

Rage1881

Member
Jul 8, 2005
195
0
0
oh my someone must know... hmm after about 4 hours of searching i also found some poeple say forcing constant performance level fix there problem tryed it didnt work for me
 
K

Kaspian

Golden Member
Aug 30, 2004
1,713
0
0
I'm having the same problem only if I use the latest Nvidia drivers (7x.xx).
If I use the 6x.xx series I dont have that problem. The thing is I have to use detonator rip if am going from the 7x.xx to the 6x.xx series. If I dont use the rip and just overrite the driver or deleted the problem will persist. I read somewhere that it could ( some how) be conflicting with the sound chip. I'm using on board sound right now but I'm getting a new sound card soon. I'll let you know what happens........
 
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Rage1881

Member
Jul 8, 2005
195
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0
ya im using a sound blaster 5.1 im gonna try going back to the 6x series... shouldnt have to though.. Seems this only happens with gayvidia.. everywhere i go people have different explanations, that are tottaly different from eachother. One common one is that nvidia has a problem with fast writes and wont confess to it.. I turn that off and its still the same.. .
 
H

HDTVMan

Banned
Apr 28, 2005
1,534
0
0
Video Settings --- Advanced --- TroubleShooting Tab --- Turn Off ENABLE WRITE COMBINING.

Then test.
 
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Rage1881

Member
Jul 8, 2005
195
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0
i tried turning combing off made no difference. I also then tried it with fast writes to same thing.. This only happens in guild wars though and didnt happen before with my 9800pro
 
K

Kaspian

Golden Member
Aug 30, 2004
1,713
0
0
Originally posted by: HDTVMan
Video Settings --- Advanced --- TroubleShooting Tab --- Turn Off ENABLE WRITE COMBINING.

Then test.
Click to expand...

Turned Battlefield 2 into a slide show....thanks for the suggestion though

 
K

Kaspian

Golden Member
Aug 30, 2004
1,713
0
0
Originally posted by: Rage1881
just sneaking in another question here.. It is fast writes thats causing this problem.. how much performance will i loose on average by disabling it



Hi Guys,

First of I know the simple solution to games stutering and pausing for a few seconds is to turn fast writes off via bios or software.But I wanted to know why the fast writes / stutering and pausing problem was so random? For anyone that has had this problem including myself you would have tried different drivers, bios versions, bios settings, voltages in the end we just turn fast writes off because nothing fixed the problem (for me anyway).

To cut a long story short.......

I have a ASUS 6800 Ultra 425/1100 (stock settings from ASUS)
Now the 6800 Ultra has a 400mhz Ramdac? So from the outset my card at stock speed is overclocked by 25mhz.

AGP Fast Writes communicates with the ramdac in this case 400mhz. AGP fast writes has a problem when the card is running above it's spec and it tries to reset the ramdac back to 400mhz which causes the stutering and pausing, but it's not succesfull because the card is set to 425mhz so the AGP keeps trying to reset it and we keep getting stuttering and pauses during gameplay.

So just for testing I used RivaTuner to set my 2d/3d and low power clock to 400mhz which equals the ramdac in the card. Turned AGP Fast Writes on and have been testing 3Dmark03 which I could not complete with fast writes on, Rome: Total War which I was having huge probs with fast writes on.
With no problems at all.

Is there is anyone that is having this particular problem that would be willing to run a few tests with the games/apps that are causing problems to see if this will work for you?

Hope this helps


Angelo



-=DVS=- said:
What if your card is GT and it runs stock 350 MHZ would that make DAC run at 350 ? or should it couse stuttering becouse dac must run at 400 according to your info ??

Anyway i don't have Nforce 3 , but got VIA based mobo and no problem with Fastwrites on.
Click to expand...

Let's say your 6800GT has a ramdac of 350mhz but your card is running at 400mhz and you are getting stuttering etc... What I mean is lower the clock rate to equal your ramdac (all 3 clock rates which is 2d/3d and low power rate).

The VIA chipset doesnt seem to have this problem.


QUOTE=-=DVS=-]So you saying GT and Ultra models have different DAC or even lower models ? i though it was same for all models. In that case it should not matter what megahertz your GPU runs at.

And if GPU MHz equal DAC then what ? Radeons at core 500 have DAC of 500 ? makes no sense realy. I was sure that all todays cards got DAC at 400 ?
Click to expand...

No it was just an example all geforce 6800 have a 400mhz Ramdac. What I am saying is with the nforce 3 (Socket 939 by the way) chipset and AGP Fastwrites on if your gpu is clocked higher than your ramdac thats when problems occur. This has worked for me and thats why I asked for others to test this as well.

DJB said:
What it the world makes you think that the ramdac speed is in any way tied into the GPU speed? Raising and lowering your core speed has no affect on the speed of the ramdac.

DJB
Click to expand...

OK. It seems i am totaly wrong about the ramdac. :bash:
So it's purely to do with Fastwrites and GPU & DDR3 speeds?

At factory defaults (on my card anyway) 425/1100 for 3D/2D & Low Power 3D with Fastwrites on, games stutter and pause consitantly. With Fastwrites off no problems.

At 400/1100 3D/2d & Low Power 3D Fastwrites on no problems. With Fastwrites off no problems.

I guess it's pointless going on about it, I was just curious about why it was happening on the nforce 3 939 boards. I also have a Asus A8V (Via Chipset) that doesnt suffer from these problems.

Regards


can anyone confirm this... or offer a better explanation[/quote]


Turning Fast Writes off (or disable them) in the Bios did the trick:D now am using the 77.30 version of the nVidia drivers.... I'm about to download the latest drivers from nvidia and see what happens...

My question still remains though.......why was I able to use the 6x.xx series with fast writes on and not with the 7x.xx.:confused:

 
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