what is a safe OC w/o flash for 6800GT

[theholylancer]

what is a safe OC? for a relatively badly cooled case (1x 120mm low, 2x 80mm medium)? and what is with flashing?

AMD A64 3200+Venice
DFI Lanparty UT NF4 Ultra-D
OCZ 2x512mb EL Gold VX PC3200 ram 3-3-3-8
evga eGeforce 6800GT 256mb GDDR3 ram
Enermax 485W PSU
Bios 6/23
WIndows XP SP2
No OC

 

[ChipDeath]

Without increasing voltage, just increase little by little until you start to see errors, then back off a bit. Let it stress-test for a good while ( > half an hour) between each increase. As long as you're slow, steady and careful, you'll not do physical damage.

It's only really when you start increasing voltage that you hit 'the danger zone', so relax.

Just don't go increasing it by 400Mhz straight away. go up in jumps of <b>no more</b> than 10Mhz at a time.

First do the core clock (don't bother increasing memory), and only move on to the memory when you find the limit of the core.

Bear in mind that although an overclock might seem stable and artifact-free, if the ambient temperature increases (i.e. tommorrow is a much hotter day than today) it might be enough to tip it over into overheating, and you'll get artifacts again, so it's a good idea to find the max, and then back off by 5-10Mhz or so for longer term running.

DoomIII and 3dmark '03 'Nature' test are good tools to check for artifacts visually. I don't count an overclock as successful unless it has NO artifacts in ANYTHING. Different people have different ideas there...

<pre>I didn't say anything about Wusy.. no sireee</pre><p>

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[ChipDeath]

Forgot to add, no-one can really give you an exact figure. Too many variables.

My old 9800Pro wouldn't do any faster than 405Mhz without artifacts until I voltmodded it, but a friend's one (same make/model) will do around 415-420.

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[theholylancer]

lol ops... i took it up to 410/1100 lol well time to back this mother off b4 i fry something! btw can someone direct me to a artirfacted pic? BTW i founded out that my max was 415/1100 with tivaturner's test thing, since its not under load so i assumme that this is not accurate?

AMD A64 3200+Venice
DFI Lanparty UT NF4 Ultra-D
OCZ 2x512mb EL Gold VX PC3200 ram 3-3-3-8
evga eGeforce 6800GT 256mb GDDR3 ram
Enermax 485W PSU
Bios 6/23
WIndows XP SP2
No OC

 

[ChipDeath]

I never trust <i>any</i> 'Auto Overclock' tools. Where's the fun?

And as Wusy says, you'll know an artifact when you see one...

You'll either get snow (white flecks everywhere) or big <i>really</i> obvious flashing triangles (shards).

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|_____| This was bunny. He was tasty.
/\/\/\/\</pre><p>

 

[theholylancer]

lol i see, if this is ture then by god i hope i don't get to know what artefacts are in my life

AMD A64 3200+Venice
DFI Lanparty UT NF4 Ultra-D
OCZ 2x512mb EL Gold VX PC3200 ram 3-3-3-8
evga eGeforce 6800GT 256mb GDDR3 ram
Enermax 485W PSU
Bios 6/23
WIndows XP SP2
No OC

 

[ChipDeath]

My response to snow was to get a screwdriver and turn my POT a little...

It was kinda interesting watching the doomIII timedemo while slowing cranking the V up. Almost like tuning in an old TV as the interference slowly dissapeared

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|_____| This was bunny. He was tasty.
/\/\/\/\</pre><p>

 

[ChipDeath]

It's not the artifacts you don't want to see - It's that completely blank screen that shows you've just killed your card :frown:

Don't worry though - Like I said, that'll basically only happen if you increase the core voltage.

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|_____| This was bunny. He was tasty.
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[ChipDeath]

Stopped and checked a lot. Only went up to around 1.9V or so that time. I'm not <i>that</i> stupid... :lol:

It was a couple of weeks later that it died, after running for about 70 hours at 2V.

If I came into a pile of money, I'd buy a few and try out different cooling and stuff, just to defeat yours :tongue:

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<pre> (\_/)
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|_____| This was bunny. He was tasty.
/\/\/\/\</pre><p>