Overclocking my Parasouls HD 3850

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crippo_gamer

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#1 crippo_gamer
Member since 2005 • 1164 Posts

The stock fan is crap and i cant seem to change it's speed even with rivatuner so iam thinking of getting a zalman.

the stock clocks are:

Core Clock: 670Mhz

Memory Clock: 829Mhz

What should I increase them to to get a good frame rate in crysis with high graphics?

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swehunt

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#2 swehunt
Member since 2008 • 3637 Posts

Zalman VF700 works great for me on my HD3850.

Im not sure you could ever play crysis without mixed settings even if you O/C but a few more FPS is there on the card.

this is my 24/7 O/C 740core/1000mem

zalman alow me to go 770 on the core but then I need more volt, if you need to get past 770 on core, you need to volt mod your card.

The stock fan is crap and i cant seem to change it's speed even with rivatuner so iam thinking of getting a zalman.

the stock clocks are:

Core Clock: 670Mhz

Memory Clock: 829Mhz

What should I increase them to to get a good frame rate in crysis with high graphics?

crippo_gamer
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crippo_gamer

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#3 crippo_gamer
Member since 2005 • 1164 Posts

does volt mod require solder because i really couldnt be bothered doing that.

according to ati's overdrive its tells me that i can get

GPU: 758mhz

Mem clock: 854mhz

would that up much frames?

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swehunt

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#4 swehunt
Member since 2008 • 3637 Posts

does volt mod require solder because i really couldnt be bothered doing that.

according to ati's overdrive its tells me that i can get

GPU: 758mhz

Mem clock: 854mhz

would that up much frames?

crippo_gamer

There's a "pencil mod" who you only take a pencil and draw on one of the component's on the card, I don't recommend you toying around with those things if you don't know what you're doing.

(Well it also includes me...)

I recon you tryed "find max setting"?

but I suggest you try O/C them separately, cos "find max" bump them both up and you don't get both mem and core's max only the one that stops first. (maybe the core?)

Test bump up the MHz separately.

for ex.

core at stock (669) then up the mem by 10MHz cycles and run 3Dmark06... (most card's I've seen make about 1000MHz)

when artifacts show lower 20MHz.

try the same at core MHz.

(mem at stock. and up the core by 10mhz cycles and run 3Dmark....)

then when you know the separately max MHz you can put both core and mem max speed.

(Always lower core and mem from it's max.)

Yes, frame-rate wont drop as bad as they did. but I doubt your crysis setting will be higher.

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crippo_gamer

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#5 crippo_gamer
Member since 2005 • 1164 Posts
thanks for the tips
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blackleather223

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#6 blackleather223
Member since 2004 • 1569 Posts

I have always wonder what oc does far as a game goes or anything like that cause I do oc but I really don't know what it is doing and far as finding the max on core I did it once and the whole thing froze and so I whent back to the manule way upping it just a little bet at a time.

I have been messing around with my 8600gt xxx 256mb and I had it up to around 680 something far as core goes and mem at 800 and so as I whent along I found that this speed was ok and so I left it but I found out that the temps was going up fast so I max out fan and still it would go up and so I had to back it off to around 665 core clock and mem stay the same and I have a fan on the out side blowing in to keep it cool cause my room is like 83 degrees today and at night it does get cooler

Right now my gpu is idle and is 56c and under load I'm not sure how hot it getts but I do plan on getting either the 3850 or the 3870 hd ati card. It sounds like either one of those 2 should do better in ocing.

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swehunt

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#7 swehunt
Member since 2008 • 3637 Posts
Sorry if i did not make that as clear as I should but temp on o/c´ed hardware is very important, monitor your temps all the time when you clock, if no artifacts show and the temp is ok, and the card is stable at clockspeeds then is a ok clock.

Yes, HD3850 is good for o/c but thats when a aftermarket cooler is mounted, the single slot stock cooler sucks, it does not keep GPU cool enough for a big o/c.

People acually with Volt mod got clocks a fair bit over 900mhz core, (HD3850) the 55nm core is a o/c beast and scale good in o/c, but all cards does o/c diffrent, some are able to make 770mhz without bios/volt mod (My does.) and some stop at 740 without extra volt added, So it´s sorta lottery.