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4850's Stock Temps and DuOrb Temps (With Pics) - Page 6

post #51 of 59
Thread Starter 
Quote:
Originally Posted by Oupavoc View Post
Not to hijack the thread but is there any water blocks for the 4850, 4870 and 4870X2 out yet?
If the waterblocks fit the 3870, they will fit the 4850 and 4870. The same with all air coolers as well.
Edited by KamuiRSX - 8/10/08 at 1:13am
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post #52 of 59
Folks
Incoming noobish question... At the tail end of the 4850 cards there is 8 black chips and 4 grey ones - which are MOSFETS and which are VRM's? And which ones get hot - grey or black? There is another one of the grey ones up near the top of the card that isn't covered by the stock cooler and I've checked - it doesn't get hot at all - do the four at the back?
post #53 of 59
Yeah, you'll want to cover all of them, although don't ask me which are which. The black ones can be covered with the long skinny heatsinks and the grey ones with the larger normal heatsinks.
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post #54 of 59
Thanks Fish...

Notice you are using the DuOrb - did you just use the stock alu heatsinks that come with it? They seem tiny...

How much noise does the DuOrb produce? If it's comparable to the stock cooler running without any of the fan mods (aka pretty much not running) then I'd be happy
Edited by SenojNW - 8/11/08 at 4:00am
post #55 of 59
I bought some of these: http://www.newegg.com/Product/Produc...82E16835118220 for the memory, and then used the stock grey ones for the rest.

It runs very quiet, but I can't remember what stock was. I have been super impressed. Temps went from idling in the 50s to now around 33-34. Highs during load were around 70 and now at 45 tops, with 76F ambient. Stock was even with modded fan speeds.

http://www.overclock.net/ati-cooling...850-duorb.html
Edited by IEATFISH - 8/11/08 at 7:53am
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post #56 of 59
Thread Starter 
Quote:
Originally Posted by SenojNW View Post
Thanks Fish...

Notice you are using the DuOrb - did you just use the stock alu heatsinks that come with it? They seem tiny...

How much noise does the DuOrb produce? If it's comparable to the stock cooler running without any of the fan mods (aka pretty much not running) then I'd be happy
Just remember that you definitely need to cover the MOSFets and the VRM's. If you don't, your card will burn out real real quick. The DuOrb will come with enough heatsinks to cover everything. In fact, you will have 1 heatsink leftover if you cover the card correctly.
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post #57 of 59
You'll want to cover all 12 of those chips, they will make your card/overclock unstable once they get toasty.
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post #58 of 59
Thanks folks... after quite a bit of reading last night I ended up ordering a Zalman VF-900Cu as I figured it would provide good cooling (not excellent like the Duorb but much better than stock) and low noise as noise is a big issue for me with the stock cooler and the fairly open structure of an Antec 300 case. I don't overclock to a huge extent anyway. Also grabbed a couple of 800rpm Scythe fans and the Swiftech MOSFET sinks to help out.
post #59 of 59
I also have the duorb on my asus hd4850 512mb with GPU Clock at 720 and memory clock at 1004. My idle temp is about 32C but my load temps sometimes shoot all the way up to about 96C when using furmark for an hour on res 1920x1200. Does this sound about right? it seems to have dropped my temps around 10c-20c compared to stock but didnt think it would ever go as high as 96C
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