3870 clocking

[RaiderX303]

got a 3870 today and gave it a go to get max clock on stock cooler

the highest i could get to bench at was 890MHz core and 2800MHz mem, altho the 2800 on the mem did show alot of artifacting it didnt cause it to freeze.

http://service.futuremark.com/compare?3dm06=4649340

Note, this was on vista and quad was only at 3.2GHz. at stock, the SM2 and SM3 scores were 4200 and 4400

[Stocky]

Just had a peek on HWbot and you're not far off some guys using water with that score which is always nice on a stock cooler 'ey! :)

What are your plans with it? Are you going to run it on XP?

[maverik-sg1]

You can volt mod the cards and get higher clocks even witht eh stock cooler on thee puppies- see pants_marshall's scores for more details :)

[RaiderX303]

You can volt mod the cards and get higher clocks even witht eh stock cooler on thee puppies- see pants_marshall's scores for more details :)

yep, i had fan on 100% and got 39-42c full load at 890 core, now i just need to find that pencil mod again, but first i need a volt meter, anyone care to lend?:p

ive also got 2 of these coming so would be good to see what they do under LN2 at the scotland event

[pants_marshall]

hello RaiderX303 :)

best thing to do is lower your ram clocks and up your core, i can run my 3870 with 1.46-7 volts(reading taken from idle-it ups to 1.59 under load;)) with the fan on 100% - temps are hitting 60-65c, lower the ram down to 1314mhz and up the core to 900+ depending on your ambient temps.


:coffee:

[RaiderX303]

i tried it with the ram at stock and still couldnt get over 890MHz on the core.

[MonsterMunch]

i tried it with the ram at stock and still couldnt get over 890MHz on the core.

Try re-seating the cooler with some MX2 ;)

[RaiderX303]

Try re-seating the cooler with some MX2 ;)

im only getting 41c full load with fan on 100%, would be strugling to get cooler on water

[pants_marshall]

you need more volts to get the higher clocks, the only real way of getting precise voltages is by hardmodding the card with a variable resistor and a multimeter. I spanked the living shit out of my card last week having reached almost 1.6v to the core.......soon it'll be going through it again :D

I'am also using the stock cooler and i havent even touched it to change the paste.

:coffee:

[RaiderX303]

heh, whats the highest memory clock youve managed to get, i havent found anyone yet with higher than 2600, i think ive got a WR for highest mem clock :biggrin:

[H4rdcore-HeaveN]

Really nice clocks you have there bud.