HD4850/4870 Fan Fix + OC Fix.

erocker · Jun 29, 2008, 04:02 AM

Quote:

if you make a profile in catalyst after turning on Overdrive( make sure clock and memory settings are correct). You can then go to the file "C:\Users\Bretware\AppData\Local\ATI\ACE\Bretw are. XML. the xml file will have the same name as the catalyst profile you saved. right click and hit edit.

<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="65" />

Change the value to "manual" and Want value to "66"

Save the file then reload your profile in catalyst.

65% seemed perfect for me, 70% was loud but you may need it if your case has poor air flow.

You will have to select the profile everytime you start the computer, but it will work until there is a fix or better info so i can figure how to change the auto target temp.
Good Luck ,bretware

Link:http://forums.guru3d.com/showthread....69#post2751569

Fan fix + OC on post #66!

Cold Storm · Jun 29, 2008, 04:15 AM

You mean to tell you don't have to pull the "Blue Wire"

Pretty sweet man!

erocker · Jun 29, 2008, 04:36 AM

65% is pretty darn loud! This fan goes faster than it needs to. I'm idling at 35C!!

Going to turn it down a little...
*65% = 4041rpm's! I'm speaking about my 4870.

dark2099 · Jun 29, 2008, 04:39 AM

Quote:

Originally Posted by erocker

65% is pretty darn loud! This fan goes faster than it needs to. I'm idling at 35C!!

Going to turn it down a little...
*65% = 4041rpm's!

Odd, on my Visiontek 44% was somewhere in the 4k range.

[I.R.A]_FBi · Jun 29, 2008, 04:49 AM

ok. time to order my hd4850

edit: waiting on 1gb model

erocker · Jun 29, 2008, 05:12 AM

Quote:

Originally Posted by dark2099

Odd, on my Visiontek 44% was somewhere in the 4k range.

On a 4870? This fan is overkill, which is good. I'm at 50% and idling at 38C, FurMark under load is 55c after a few runs. This cooler works very well when the fan isn't at 16%

erocker · Jun 29, 2008, 06:53 AM

HD4870

wiak · Jun 29, 2008, 11:18 AM

nice, anyway i got zalman VF900-Cu, will transfer it over from my HD 3870 to my new HD 4870 on monday

tigger · Jun 29, 2008, 11:58 AM

i'll be using my vf900 thats on my 3850 on my 4850 when i get it.I have modded my vf900 by putting a normal 80mm fan on it.I cut the middle bit out of the 80mm fan and glued it onto my vf900.Seems to work ok.

My 3850 runs at about 30c ish on windows.

wiak · Jun 29, 2008, 12:00 PM

Quote:

Originally Posted by tigger69

i'll be using my vf900 thats on my 3850 on my 4850 when i get it.I have modded my vf900 by putting a normal 80mm fan on it.I cut the middle bit out of the 80mm fan and glued it onto my vf900.Seems to work ok.

My 3850 runs at about 30c ish on windows.

pic of mod or it didnt happend

same here 30ish with no mods

even with a fan full of dust it only goes to 60c max under load

dark2099 · Jun 29, 2008, 01:02 PM

Quote:

Originally Posted by erocker

On a 4870? This fan is overkill, which is good. I'm at 50% and idling at 38C, FurMark under load is 55c after a few runs. This cooler works very well when the fan isn't at 16%

Don't have a 4870 yet, that was on my 4850 during a 10 min stability test I did with Fur to see what temps were like.

Megasty · Jun 29, 2008, 01:26 PM

Heh, I completely forgot about the overdrive profiles. Too bad I don't feel like putting the casing/fan back on the thing, plus that fan is loud as hell. For now I can deal with the thing taking up 3 slots in my rig.

tkpenalty · Jun 29, 2008, 01:49 PM

Uh guys, the VF900CU still wont bring satisfactory temps... I'd expect the heatpipes to be saturated with heat. Well, thats what I think at least

wiak · Jun 29, 2008, 02:43 PM

Quote:

Originally Posted by tkpenalty

Uh guys, the VF900CU still wont bring satisfactory temps... I'd expect the heatpipes to be saturated with heat. Well, thats what I think at least

well depends

HTC · Jun 29, 2008, 02:55 PM

Quote:

Originally Posted by tkpenalty

Uh guys, the VF900CU still wont bring satisfactory temps... I'd expect the heatpipes to be saturated with heat. Well, thats what I think at least

And i still believe that a passive solution, like the Accelero S1 Rev. 2, will work just fine on these cards (and even better if you stick a fan in it).

Question: is it possible to stick an Accelero on such a card and check the idle temps only and compare them to a stock cooler @ stock speed, or does the card heat up badly on windows load that such a test is impossible without overheating the card (in case i'm wrong)?

Scrizz · Jun 29, 2008, 03:16 PM

ima be sticking my Thermalright V2 on the 4850

erocker · Jun 29, 2008, 03:38 PM

36c idle with the 4870 stock cooler, plus it blows all the hot air out of my case... I'll stick with the stock cooler!

HTC · Jun 29, 2008, 03:43 PM

Quote:

Originally Posted by erocker

36c idle with the 4870 stock cooler, plus it blows all the hot air out of my case... I'll stick with the stock cooler!

Hadn't thought of that ...

That's quite an improvement, dude, temp wise.

How about the noise? Does it increase too much when gaming?

Pix · Jun 29, 2008, 03:45 PM

Quote:

Originally Posted by HTC

And i still believe that a passive solution, like the Accelero S1 Rev. 2, will work just fine on these cards (and even better if you stick a fan in it).

Question: is it possible to stick an Accelero on such a card and check the idle temps only and compare them to a stock cooler @ stock speed, or does the card heat up badly on windows load that such a test is impossible without overheating the card (in case i'm wrong)?

The Accelero does work fine. Without the 140mm fan I have on it, it idled at about 50 and loaded at about 67. The fan clearly makes a big difference.

It's now running with zero problems at 700/1100.

BoOsTed SS · Jun 29, 2008, 03:46 PM

The 4870 cooler is much better than the 4850. I wish they would have put the same on them.

erocker · Jun 29, 2008, 03:47 PM

Quote:

Originally Posted by HTC

Hadn't thought of that ...

That's quite an improvement, dude, temp wise.

How about the noise? Does it increase too much when gaming?

At 50%, it's deffinitely noticable over my other fans, but tolerable. Since the temps never go above what the card used to idle at (16% fan), the fan just stays at 50%.

Quote:

Originally Posted by BoOsTed SS

The 4870 cooler is much better than the 4850. I wish they would have put the same on them.

Price.

HTC · Jun 29, 2008, 03:54 PM

Quote:

Originally Posted by Pix

The Accelero does work fine. Without the 140mm fan I have on it, it idled at about 50 and loaded at about 67. The fan clearly makes a big difference.

http://i280.photobucket.com/albums/k...a/DSC00507.jpg

http://i280.photobucket.com/albums/k...a/DSC00515.jpg

http://i280.photobucket.com/albums/k...a/DSC00509.jpg

http://i280.photobucket.com/albums/k...a/DSC00517.jpg

http://i280.photobucket.com/albums/k...celeroload.jpg

http://i280.photobucket.com/albums/k...celeroidle.jpg

http://i280.photobucket.com/albums/k...a/3dmark06.jpg

It's now running with zero problems at 700/1100.

Those temps are with the card OCed and no fan or with the card @ stock speed and no fan?

Regardless of that, you just proved my point beyond a shadow of a doubt and i thank you for it, dude!

EDIT

Another question: don't 2*120 mm fans fit, side by side, in that Accelero?

Pix · Jun 29, 2008, 04:11 PM

Quote:

Originally Posted by HTC

Those temps are with the card OCed and no fan or with the card @ stock speed and no fan?

Regardless of that, you just proved my point beyond a shadow of a doubt and i thank you for it, dude!

EDIT

Another question: don't 2*120 mm fans fit, side by side, in that Accelero?

No problem.

Those temps in the pics are with the card overclocked to 675/1050 and the 140mm fan. The passive temps were 50c idle and about 67c load. With the fan, it idled at the same speed (30c) as at stock speeds because obviously the clock is the same at 500Mhz. At 700Mhz, load jumped to about 40-41c. Either way, it runs very cool and very quiet.

I believe 2 x 120mm fans do fit on it, in fact arctic cooling do a unit with 2 of them in it that attaches to it.

I like this 140mm fan though, moves a lot of air at superbly quiet speeds.

Pix · Jun 29, 2008, 04:16 PM

Quote:

Originally Posted by BoOsTed SS

The 4870 cooler is much better than the 4850. I wish they would have put the same on them.

Some would say price, some would say by design, given that it's the same chip as in the 4870, only lower clocked.

I believe it's by design, because the 4800 chips are very powerful. Most consumers aren't going to change the cooling on a video card, so all the more reason to slap on a cooling solution that *just* does the job, thereby eliminating the chance of a good overclock.

Just my $0.02.

bringmepeanuts · Jun 30, 2008, 04:11 AM

wait, what are you guys temps loading at stock cooler o.O, those numbers seem unreal.

edit: so the 4870s aren't THAT hot eh....

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Jun 29, 2008, 04:15 AM	#2
Cold Storm Battosai Join Date: Oct 2007 Location: In a library somewhere on this earth Posts: 10,566 (5.07/day) Thanks: 4,245 Thanked 3,051 Times in 2,495 Posts System Specs	You mean to tell you don't have to pull the "Blue Wire" Pretty sweet man! __________________ The only way success is before work, is in the dictionary Support for the mind. Support for your hardware

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Jun 29, 2008, 04:36 AM	#3
erocker Senior Moderator Join Date: Jul 2006 Location: Milwaukee, WI. Posts: 32,293 (12.78/day) Thanks: 2,818 Thanked 12,453 Times in 7,919 Posts System Specs	65% is pretty darn loud! This fan goes faster than it needs to. I'm idling at 35C!! Going to turn it down a little... 65% = 4041rpm's! I'm speaking about my 4870. __________________ Last edited by erocker; Jun 29, 2008 at 05:13 AM.*

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Jun 29, 2008, 04:49 AM	#5
[I.R.A]_FBi Eligible for custom title Join Date: May 2007 Location: c:\programs\kitteh.exe Posts: 6,152 (2.77/day) Thanks: 724 Thanked 556 Times in 461 Posts System Specs	ok. time to order my hd4850 edit: waiting on 1gb model __________________ Rig 1+1 Athlon XP 2200+, MSI KM2M Combo, ATI 9200SE 128 MB DDR, 2 X 512 MB DDR333, 250GB + 80 HDD? “try intel cpu, amd is only good for going to nude sites” -firehawkxd “go for the 5850 now and play games while the nvidiots wait for the ceo to show an actual working product” -W1zzard “An MSI logo? This offends my retina. I await your apology.” -MRCL www.autolounge.com.jm Last edited by [I.R.A]_FBi; Jun 29, 2008 at 05:23 AM.

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Jun 29, 2008, 06:53 AM	#7
erocker Senior Moderator Join Date: Jul 2006 Location: Milwaukee, WI. Posts: 32,293 (12.78/day) Thanks: 2,818 Thanked 12,453 Times in 7,919 Posts System Specs	I like. HD4870 __________________

Jun 29, 2008, 11:18 AM	#8
wiak Join Date: Sep 2004 Location: Norway Posts: 1,682 (0.52/day) Thanks: 15 Thanked 199 Times in 156 Posts	nice, anyway i got zalman VF900-Cu, will transfer it over from my HD 3870 to my new HD 4870 on monday __________________ My rig @ overclock.net \| My new friend OpenShot

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Jun 29, 2008, 11:58 AM	#9
tigger I'm the only one Join Date: Mar 2006 Location: HU5 1LH Posts: 7,327 (2.77/day) Thanks: 513 Thanked 989 Times in 810 Posts System Specs	i'll be using my vf900 thats on my 3850 on my 4850 when i get it.I have modded my vf900 by putting a normal 80mm fan on it.I cut the middle bit out of the 80mm fan and glued it onto my vf900.Seems to work ok. My 3850 runs at about 30c ish on windows. __________________ http://img.techpowerup.org/110324/v6351cpuzvalj197.jpg ]Monster E6300 oc http://www.techpowerup.com/gallery/2163.html

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Jun 29, 2008, 01:26 PM	#12
Megasty Join Date: Mar 2008 Location: The Kingdom of Au Posts: 1,209 (0.63/day) Thanks: 76 Thanked 83 Times in 76 Posts System Specs	Heh, I completely forgot about the overdrive profiles. Too bad I don't feel like putting the casing/fan back on the thing, plus that fan is loud as hell. For now I can deal with the thing taking up 3 slots in my rig. __________________ gods are created through gaming not 3dmark... Comcast is great, isn't it...

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Jun 29, 2008, 01:49 PM	#13
tkpenalty Eligible for custom title Join Date: Sep 2006 Location: Australia, Sydney Posts: 5,023 (2.04/day) Thanks: 412 Thanked 361 Times in 266 Posts System Specs	Uh guys, the VF900CU still wont bring satisfactory temps... I'd expect the heatpipes to be saturated with heat. Well, thats what I think at least __________________ AMD Radeon X1950~HD4000 Support Clubhouse “Mac: "Woah, what are you doing?" Mac says as he levitates in the air. PC: "Playing Half-Life 2, this is my gravity gun." Mac: "Well I can sort of do that." PC: "Technically Mac, you have to become me first."” -From_Nowhere

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Jun 29, 2008, 03:16 PM	#16
Scrizz Join Date: Aug 2007 Location: Brandon, FL, US Posts: 2,135 (1.00/day) Thanks: 733 Thanked 292 Times in 267 Posts System Specs	ima be sticking my Thermalright V2 on the 4850 __________________ ~Scrizz Protected, Mother Approved~

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Jun 29, 2008, 03:38 PM	#17
erocker Senior Moderator Join Date: Jul 2006 Location: Milwaukee, WI. Posts: 32,293 (12.78/day) Thanks: 2,818 Thanked 12,453 Times in 7,919 Posts System Specs	36c idle with the 4870 stock cooler, plus it blows all the hot air out of my case... I'll stick with the stock cooler! __________________

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Jun 29, 2008, 03:46 PM	#20
BoOsTed SS Join Date: Jan 2007 Posts: 64 (0.03/day) Thanks: 11 Thanked 2 Times in 2 Posts System Specs	The 4870 cooler is much better than the 4850. I wish they would have put the same on them.

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Jun 30, 2008, 04:11 AM	#25
bringmepeanuts Join Date: Jun 2008 Posts: 14 (0.01/day) Thanks: 0 Thanked 0 Times in 0 Posts System Specs	wait, what are you guys temps loading at stock cooler o.O, those numbers seem unreal. edit: so the 4870s aren't THAT hot eh.... Last edited by bringmepeanuts; Jun 30, 2008 at 04:16 AM.

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