Radeon HD 4850 Heat issues

[NKD]

guys I still can't find the file, it is not there, I have enabled show hidden folders and still not showing up. I created it and gave it a name, but no go. any idea what is going on.

[paulc]

Originally Posted by krayzieNRG

told u it work ur rig is a beauty,got one my 8800gtx in my antec 900 with all blue even my zalman 9700 is black with blue led(modd)

thanks man. I also managed a 19,2XX 3dmark score with the 4850's tuned at 685/1110. I know these things can do more....


btw, the stock h/s are in the trashbin already. lol. they make the card (any card) too heavy.

[Rich2526]

Originally Posted by NKD

guys I still can't find the file, it is not there, I have enabled show hidden folders and still not showing up. I created it and gave it a name, but no go. any idea what is going on.

Use search and search for hidden for files then it should show up then. Thats what i did

[bretware]

Fasteddy, will you make a profile and post the part of the xml code with the fan control? I would like to see what it is.

bretware

[sunderland]

paulc are those duorbs easy to fit m8 and have they knocked much of your temp and are they quiet cheers

[RejZoR]

I'm going to keep the stock cooler on my HD4850 and try to fabricate the exhaust module to direct the heat through expansion slot outside from the case. Heat buildup is the biggest problem, cooler itself is quiet capable.

[fasteddy]

Originally Posted by bretware

Fasteddy, will you make a profile and post the part of the xml code with the fan control? I would like to see what it is.

bretware

There you go mate... this is from the one I'm using with it now set at 45%.


</Feature>
<Feature name="FanSpeedProtocol_0">
<Property name="FanSpeedProtocolProperty" value="Percent" />
</Feature>
<Feature name="FanSpeedAlgorithm_0">
<Property name="FanSpeedAlgorithm" value="Manual" />
</Feature>
<Feature name="FanSpeedRPMTarget_0">
<Property name="Want" value="0" />
</Feature>
<Feature name="FanSpeedPercentTarget_0">
<Property name="Want" value="45" />

[DES_MX]

Originally Posted by RejZoR

I'm going to keep the stock cooler on my HD4850 and try to fabricate the exhaust module to direct the heat through expansion slot outside from the case. Heat buildup is the biggest problem, cooler itself is quiet capable.

Keep us posted on how that works out, and if it does, some guide would be nice... heck i can solder and i got materials

[fasteddy]

Originally Posted by NKD

guys I still can't find the file, it is not there, I have enabled show hidden folders and still not showing up. I created it and gave it a name, but no go. any idea what is going on.

Have you unlocked overdive and set everything to default?
What os are you using?

[Gripen90]

I put an Antec Vcool under my card and it immediately dropped about 13 degrees celcius even with the Vcool set on low speed.

[bretware]

Sorry fasteddy I misunderstood what you were saying in one of your posts.

"Mine comes in automatically... sorted!"

For some reason I thought you were saying the auto was working on your fan, LOL

I'm going to put some hours in to night and try to get the auto working, the info is in one of these piles.

bretware

[Mega_Death]

Thank you bretware! Dropped my temps 20 degees C and didn't cost a dime!

[raskol]

Originally Posted by RejZoR

I'm going to keep the stock cooler on my HD4850 and try to fabricate the exhaust module to direct the heat through expansion slot outside from the case. Heat buildup is the biggest problem, cooler itself is quiet capable.

Exactly, it is obvious the stock cooling hardware is adequate by observing the speed at which the GPU cools when not loaded.

I'd also be interested to see your solution to exhausting the heat using the stock cooling. With the number of cards ATI will sell at these prices you might be able to make some money.

[sinister_steve]

Originally Posted by raskol

Exactly, it is obvious the stock cooling hardware is adequate by observing the speed at which the GPU cools when not loaded.

I'd also be interested to see your solution to exhausting the heat using the stock cooling. With the number of cards ATI will sell at these prices you might be able to make some money.

hey do the 4870 ,s also have this heat problem? cuz im gonna buy one or the other 4870 or 4850 but I dont really want to fart eround evertime I load my comp so I can play a game without my new cards setting aflame...thanks...Steve

[RejZoR]

Originally Posted by raskol

Exactly, it is obvious the stock cooling hardware is adequate by observing the speed at which the GPU cools when not loaded.

I'd also be interested to see your solution to exhausting the heat using the stock cooling. With the number of cards ATI will sell at these prices you might be able to make some money.

Today if everything goes well i'll make a paper prototype just to see if it's even possible. Bad thing is i'll have to use metal because if the extreme heat generated at the exhaust. Or at least high heat resistant plastic...

[RejZoR]

Ok, i've dumped that idea because i'm going to modify my VF900 with 92mm Akasa fan.

However i did try placing a 80mm fan to intake air through PCI slots in the back. Guess what, the card temperature remained at steady 88°C during RHDRIBL looping. And all i did was to place low RPM 80mm fan to intake the air so its air stream was almost directly feed into the graphic card fan.

[raskol]

Originally Posted by sinister_steve

hey do the 4870 ,s also have this heat problem? cuz im gonna buy one or the other 4870 or 4850 but I dont really want to fart eround evertime I load my comp so I can play a game without my new cards setting aflame...thanks...Steve

The 4850s do not have a heat "problem". They have low fan speeds. I appreciate this because I HATE loud computers.

ATI seems to have chosen to run the stock fans at low speeds. Apparently to limit overclocking and competing with the 4870s. Since the 4870s have 2slot coolers this will solve the only "problem" I see, by exhausting the heat out of your case.

Of course you'll have to spend MUCH more money for the same GPU. So for the price of 1 4870 you could XFire 2 4850's. I think I'll save the $150 and leave my case open!

[Bold Eagle]

Originally Posted by NKD

guys I still can't find the file, it is not there, I have enabled show hidden folders and still not showing up. I created it and gave it a name, but no go. any idea what is going on.

I had the exact same problem but then used Windows "Search", tick also Hidden and system folders and found it that way, I had at least four of the ACE folders and just opened each till I found the profile.

Your a Champion Brettware I adjusted mine to 35% with no noticeable audible difference and went from 68C to 55C idle, going to refresh the Thermal Paste with Artic Silver 5 and see if this helps as well.

[raskol]

Originally Posted by RejZoR

Ok, i've dumped that idea because i'm going to modify my VF900 with 92mm Akasa fan.

However i did try placing a 80mm fan to intake air through PCI slots in the back. Guess what, the card temperature remained at steady 88°C during RHDRIBL looping. And all i did was to place low RPM 80mm fan to intake the air so its air stream was almost directly feed into the graphic card fan.

NO! You're supposed to tell me how to exhaust the heat!

Seriously tho, can anybody post the default profiles.xml file? I STUPIDLY modified mine without making a backup and now it is loading that as default and I can't make the edits stick. It keeps creating a new profiles.xml file with my mods as default.

[raskol]

Originally Posted by NKD

guys I still can't find the file, it is not there, I have enabled show hidden folders and still not showing up. I created it and gave it a name, but no go. any idea what is going on.

Windows XP
C:\Documents and Settings\YOURACCOUNT\Local Settings\Application Data\ATI\ACE

[randomizer]

I cant wait for my 4850 to come in!

I have never used ATI before!!! always try new things! fun!!

[drew24]

Thanks it worked!

[RejZoR]

I'll be installing Zalman VF-950 on HD4850 after all! Can't wait.
I've also ordered 16 copper BGA heatsinks to cool down the memory. I really want to have 700/2400 clocks on my HD4850 mwahahaha

[Bold Eagle]

It has been said elsewhere and it dawned on me as well you can make 4-5 different profiles, e.g. Fan 35%, Fan 40%, Fan 50%, Fan 60%. While you are in the Profile Manager click on the Activation tab and tick "Desktop Short Cut" then save Fan 35%. Now you will have a desktop icon for each profile you have made so you can change the fan speed at will depending on activity (low for web surfing, higher for gaming). I have made 4 and have saved them into a desktop folder called Fan Speeds.

To give this a good test I used "FurRenderingBenchmark" to really crank the GPU and found I could change speeds mid-test:

http://www.techpowerup.com/downloads...Benchmark.html

By removing my heatsink and refreshing with Arctic Silver 5 I also saved another 2-3C in idle.

So I have a profile of 40% (can hardly hear it) and went from 69C to 55C, refreshed the TIM and went from 55C to 51-52C. Well TIM is still bedding in so 50C at the moment but it is a cool night.

[Fahim]

I am going to put some arctic cooling on mine once it arrives tomorrow, then some bios modding...