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Further OC after soft-mod (X800Pro) - Artifacting

post #1 of 8
Thread Starter 
Hello ^^

Decided now that I have my Zalman VF700-Cu LED in place, I would try to OC my X800 Pro VIVO even further after I did the soft-mod to get X800XTPE.
Have been running my X800 Pro VIVO at XTPE speeds and opened pipes for a few months now. Working great.

The current clocks are at 506/547 (C/M). The stock were 475/450.
Idle is at 30C ::: Load is at 45-50C

Now the problem is those damn artifacts.
I have tried OCing the card to 528/565, the temp seems to be very stable at 50C, so that shouldn't be a problem. But it's artifacting like crazy... The weird part is that once it has artifacted once, it has a bloody hard time of calming down again...
I tried doing the "Detect Max" for my Core clocks, and it went up pretty high, started artifacting, then it automaticly started to go down.. Well, I let it go down all the way to 200 (perhaps to the best move? Not sure..), and when it got down to that, the screen went black and I had to reboot, reseting the clocks.
Anyway.. The same thing happends when I try to manually clock the card. (Though not as bad as when it's on "auto mode"..). I got it to 530(Core), then a few artifacts appeared, I set it back to 525, it didn't report any artifacts. I therefor let it scan for them for like 20mins, I followed it for about 10min, temp were fine, all looked well. Then I went away from the PC, and when I came back, the screen went black and I had to reboot (no signal).

So, what do you guys think is causing this problem? As far as I know, the temp. is the main reason for artifacting. I am running on OmegaDrivers v3.8.273 (Cat6.7) not sure if they are causing it. I really hope it's not the voltage, cause I kinda don't feel like doing the voltmod...

A _big_ thanks in advance for all the replys, and thanks for reading this rather long post
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post #2 of 8
I hate to say it, but its one of two things. A. Overheating or B. Lack of voltage. I would say a voltage mod is in order, assuming you can handle the temp increase. You could also try pointing a fan on the ram sinks, making sure the ram isnt overheating.
post #3 of 8
Thread Starter 
The RAM has been applied those small heatsinks that come with the VF700, so it should be quite alot cooler than it was with the stock cooling...
(damn.. This is when an IR temp. meter comes in handy )
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post #4 of 8
Being that I know nothing about ATI cards, im sort of shooting in the dark. Does the softmod open up pixel/shader pipelines? If so, it really does seem to me that all it needs is a little extra voltage. Also, if you did open up pixel/shader pipelines, that in and of itself can create instability.
post #5 of 8
what softmod method of pipe unlocking did you use cause as far as I know it requires a bios flash, if thats what you did and now are getting alot of artifacts it could be a bad pipe quad. Also with the volt mod suggestion does your card have a power connector cause if not, the extra pipes sometimes require more juice that you would get from a card without an external power source. Temps are ok even if there off a little your still in a good range, so i would focus on the power being the issue, your psu would not be the issue I would think, but also I would need to no if yours is AGP or PCI/e. If agp and no power connector, I would say lack of volts is most likely the cause, this would explain why more artifacting on overclocks after opening up the pipes as the agp slot doesn't give as much juice as pci/e. Volt modding isn't easy for newbies but would probably solve your problems other than lowering clocks to non-artifacting levels. If your card has an external power connector and temps are ok i would say you might have had a bad bios flash if thats what "softmodding" is. At techpowerup forums you can find more people with cards like yours and see how they fixed a bad flash. http://forums.techpowerup.com/index.php
    
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post #6 of 8
There is a pencil mod for the x800 pro, it's alot easier than hardmodding the xt cards

http://www.techpowerup.com/articles/...g/voltmods/101

Add voltage slowly if you do the mod. Add one hard pencil stroke on the resistor at a time, start the machine, and test your voltage with a digital multimeter.

Your gpu temp is great and x800xt based cards tend to overclock REAALLY well with a little voltage bump, so I think you pro might also do really well.
    
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post #7 of 8
Thread Starter 
Quote:
Originally Posted by noneed4me2
what softmod method of pipe unlocking did you use
BIOS Flash
Quote:
Originally Posted by noneed4me2
cause as far as I know it requires a bios flash, if thats what you did and now are getting alot of artifacts it could be a bad pipe quad.
I have been running my softmod'ed card for several month now. It's not artifacting at all because of the mod. What I am talking about is that when I push it even further, it starts to artifact, even though the temp. are rather good.
Quote:
Originally Posted by noneed4me3
Also with the volt mod suggestion does your card have a power connector
Yes it does ^^
Quote:
Originally Posted by noneed4me2
but also I would need to no if yours is AGP or PCI/e.
AGP

Quote:
Originally Posted by Mister Crowley
and test your voltage with a digital multimeter.
Damn... Need to get me one of those digital multimeters then...
Just looked over the voltmod (pencil, cause I have like -0 skills in soldering) and it doesn't look all that bad... Just extremely time-consuming...
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post #8 of 8
Pencil mod is probably your best bet , good luck squeezing the most from your card, its one of the best agp cards made, after you move to pci/e i would keep it just in case you need an agp card later for whatever reason.
    
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