Sapphire HD3870 X2 overclocked@920/999MHz Stock cooler

After i try with HD3870X2 on one week for overclock it which i think now i can overclocked is success for both clock on 2GPU, but i'm not sure from performance it's raise after i benched so How you think with this performance it to fit by clock speed ?

Test Setup...

Xeon E3110@4.5GHz(500x9), 1.625V
ASUS P5E64 WS Pro
G.SKILL F3-12800C7@750MHz 6-6-5-18-1T, 1.9V
Sapphire HD3870X2@920/999MHz, Stock cooler remove cover + 90mm Delta Fan
Seagate Barracuda 7200.9 80GB
Gigabyte ODIN 1200W

Setup Pic...
http://www.overclockzone.com/zolkorn...C/IMG_3520.jpg

Results....

3k03, 3k05 and 3k06 on HD3870X2 Default Clock :)
http://www.overclockzone.com/zolkorn....5G_resize.jpg http://www.overclockzone.com/zolkorn....5G_resize.jpg http://www.overclockzone.com/zolkorn....5G_resize.jpg

Overclocked 920/999MHz
http://www.overclockzone.com/zolkorn..._E31104.5G.png

http://www.overclockzone.com/zolkorn..._E31104.5G.png

http://www.overclockzone.com/zolkorn..._E31104.5G.png

http://www.overclockzone.com/zolkorn..._E31104.5G.png

nice scores... what did u use to oc the card?

Method for i used OC it....

1. I run ATITool 0.27beta4 and go to setting page you'll see BUS:3,Dev:0 = GPU1 default clock show 411/450MHz and BUS:4, Dev:0 = GPU2 default clock show 825/901MHz... so select GPU2(BUS:4, Dev:0)
http://www.overclockzone.com/zolkorn...2OC/Clip_3.jpg http://www.overclockzone.com/zolkorn...2OC/Clip_4.jpg

2. back to main page ATITool and you'll see on profile is show Default(825/901) so click "LOAD" and after click GPUZ will show 825/901MHz on card-2 but in clock bar ATITool will show 411/450MHz you don't interested it
http://www.overclockzone.com/zolkorn...2OC/Clip_5.jpg

3. For OC card type clock number in overclock-bar as 900/950 and enter... so after enter you'll see in GPUZ will show clock same you type in card-2
http://www.overclockzone.com/zolkorn...2OC/Clip_6.jpg http://www.overclockzone.com/zolkorn...2OC/Clip_7.jpg

4. Close ATITool and run AMD GPU clocktool, see on device - BN:3, DN:0 = GPU1 and BN:4, DN:0 = GPU2... you'll see GPU1 run on default clock(825/900) but GPU2 will run same on you setting by ATITool 900/950(891/945 real)
http://www.overclockzone.com/zolkorn...2OC/Clip_9.jpg http://www.overclockzone.com/zolkorn...OC/Clip_10.jpg

5. Now you can overclock all GPU by AMD GPU clocktool and gpu clock will same both speed
http://www.overclockzone.com/zolkorn...OC/Clip_12.jpg http://www.overclockzone.com/zolkorn...OC/Clip_13.jpg

btw. i'm not confirm this method will success on everyone :) and not sure is really clock same both GPU :p:

Nice card and score ZoLKoRn :toast:

Thank you very much!
your method success on me and my 3d mark score increase obviously^^

Nice Score ZoLKoRn, but it is not stock cooler :p:

Just use amd tool by itself, it will say that the o.c failed but it really worked, just click on get clock info. I don't know why it says it failed when it works but my scores show it is clocking both cores. btw 918/1062 is the best I can get on air.

Now don't use that info to pass me up on the HWBOT ZoLKoRn. :D

Quote:

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Originally Posted by thienloi

Nice Score ZoLKoRn, but it is not stock cooler :p:

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hehehe.... :D

Quote:

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Originally Posted by jimmyz

Just use amd tool by itself, it will say that the o.c failed but it really worked, just click on get clock info. I don't know why it says it failed when it works but my scores show it is clocking both cores. btw 918/1062 is the best I can get on air.

Now don't use that info to pass me up on the HWBOT ZoLKoRn. :D

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Yah for AMDTool if you update toolLib it will say failed! don't care it because it work ;)

btw. Hwbot is very slow for me now :D

Quote:

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Originally Posted by jimmyz

Just use amd tool by itself, it will say that the o.c failed but it really worked, just click on get clock info. I don't know why it says it failed when it works but my scores show it is clocking both cores. btw 918/1062 is the best I can get on air.

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hey guys has anyone else experienced this? after setting frequencies in AMD Tool (say 950/999) then running a bench, like 3DMark 06, going back into AMD Tool it shows the second card down to 900/999. not sure if it lowers it during the bench or after. just wondering if anyone else is experiencing that.

is this card faster than a 8800ultra in games?

Quote:

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Originally Posted by disruptfam

is this card faster than a 8800ultra in games?

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If game supports CF yes if doesn't then Ultra is better

Of topic I know but! where can I get the latest driver for a single 3870 x2? I am using the ones on the CD with my Sapphire Card. Could you post me a link I use XP and Vista 64 bit. Thanks

Powercolor no mods, stock cooler. 932/2200

http://service.futuremark.com/compare?3dm06=5009801

http://i180.photobucket.com/albums/x...n/23319sd2.jpg

Quote:

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Originally Posted by 3oh6

hey guys has anyone else experienced this? after setting frequencies in AMD Tool (say 950/999) then running a bench, like 3DMark 06, going back into AMD Tool it shows the second card down to 900/999. not sure if it lowers it during the bench or after. just wondering if anyone else is experiencing that.

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nope mine stays where I put it. keep in mind it moves in steps. if you set 907 for example it really sets it at 904.5 you need to go past 918 for the next step. clock divider appears to use 27 mhz steps as ati has for a few generations. I feel I get better performance sticking to the full steps 905,932,956 etc. than if I use the half steps ie: 918, 947 etc.

Quote:

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Originally Posted by jimmyz

nope mine stays where I put it. keep in mind it moves in steps. if you set 907 for example it really sets it at 904.5 you need to go past 918 for the next step. clock divider appears to use 27 mhz steps as ati has for a few generations. I feel I get better performance sticking to the full steps 905,932,956 etc. than if I use the half steps ie: 918, 947 etc.

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yeah i know it clocks in steps but if i go over 950MHz, the one core is always 900MHz after running a bench. thanks for letting me know yours doesn't drop though, at least now i know that i should be able to get it not to fall.

nice run zolkorn :up:
wonder the ATI can OC as easy as NV, it will be a real deal this time

Quote:

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Originally Posted by DMH

If game supports CF yes if doesn't then Ultra is better

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what % of games these days support cf??? :shrug:

nice guide...

trying it on the MSI R3870x2 but I seem to be hitting problems after the ati tools part:

http://i26.tinypic.com/29xetz5.gif

:(

Quote:

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Originally Posted by fornowagain

Powercolor no mods, stock cooler. 932/2200

http://service.futuremark.com/compare?3dm06=5009801

http://i180.photobucket.com/albums/x...n/23319sd2.jpg

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I wait for PowerColor 3870 X2 :D

2200 on memory? :eek:
nice..nice ;)

You use amd tool or Zolkorn's guide?

As far as I can make out this guide doesn't work at all on Vista 64bit.

Using ATITool 0.27b4, nothing seems to change what is shown in GPU-Z.

Comparing a Yorkie at 4600 vs a E8400 at 4500 mhz = ??????????

Try 930 core and 999 memory. then maybe 9x500 or 10x 450 ?
That will give us a great indication on how much difference there is in 3dmark06 betwean the E8Xxx series and the QX9Xxx series :)

Quote:

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@fornowagain. Powercolor no mods, stock cooler. 932/2200

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Quote:

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Originally Posted by Sav

I wait for PowerColor 3870 X2 :D

2200 on memory? :eek:
nice..nice ;)

You use amd tool or Zolkorn's guide?

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The powercolor is the cheapest in the UK, seems to be a great deal.:D

nice results. hehe, the delta fan owns :D

Quick question: ATI has an equivalent to "digital vibrance" in the 3870 correct? What is it called?

Thanks!

Hi guys:)

Been a long time away from benching for me indeed. I've got an E8400 benching 4.4GHz on water right now while I flog a Sapphire 3800x2.:D

Heres my issue: I am on Vista 32 bit at the moment testing and I had success with typing in the speeds as indicated in the first post, hitting enter and having them stick as indicated in GPUz.

What I'm bothered by is down in the Crossfire box at the bottomof GPUz it indicates disabled rather than 2 gpu's. I'm within a couple thousand points of the 1st post scores(at stock 3800x2 speeds) so it seems its working?? I'm not sure at all....could be if its not working I'm just tweaked good enough on the Formula Maximus :D

Have any of you running Vista seen this issue of it indicating Crossfire as disabled and not being able to enable it ? Am I missing something here? I'm on the 8.1 catalysts also.

I guess I'll set up an XP partition later on and see if all is well in a WinXP environment, if not it might be a card issue.

Any insight is indeed appreciated!

Randi:D

Quote:

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Originally Posted by Anemone

Quick question: ATI has an equivalent to "digital vibrance" in the 3870 correct? What is it called?

Thanks!

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Avivo Color matey :up:

MrIcee : GPU-Z dont detect crossfire, SLI, X2 properly under Vista, so dont worry about it.

Thanks my friend:)

Randi:D

3870x2 nice clock:toast:

Guys when I have two problems any ideas?

Problem one when I try to clock past 960mhz core using CCC it crashes teh PC display goes black and you have to reboot.

Problem two when I use AMD GPU TOOL it says device not detected so I cant use that either.

Any ideas how I can clock this card without these problems?

Thanks

You need the Toollib.dll file for 2900XT clocking in AMDGPUTOOL, you can grab it from nordichardware

Problem one when I try to clock past 960mhz core using CCC it crashes teh PC display goes black and you have to reboot.

Yah if you OC card over about ~920 CCC will can't show clock-speed and shouldn't
launch it because maybe clock-speed will go back default or 875MHz max of CCC
can setting

Problem two when I use AMD GPU TOOL it says device not detected so I cant use that either.

Update ToolLib.dll or if already update it but run on Vista, right-click and Run as... Administrator

Nice score. Anyone with Visiontek results? I want to see if the mem clock is any good. I found one for $430 US.

Zolkorn buddy, forget CCC and after boot up just run GPU tool, set the clocks you want, ignore the error message, set the clocks you want on the second device, ignore the error message, close GPU tool :)

If you really want to check what actual clock gets set, run the temp monitor tab in GPU tool and press start, it will show the real clocks speeds.

Thanks buddy i'll try it ;)

Zolkorn - nice scores, thanks for sharing your method.

I tried it and I think it works (I got just over 20K 3dm06 with only a light gpu clock/unoptimised settings,click)

T M's method sounds easier...

A question - every time I reboot the gpu returns to stock settings. Isn't there a tool like riva that works with the x2 that will 'apply settings at boot up'?

Cheers

Nope, and i doubt there ever will be. Welcome to Ati overclocking :rolleyes:

ZoLKoRn : on first post you show picture of X2 with mounted fan, can you tell me how big is that one gpu heatsink? thank you.

Quote:

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Originally Posted by spajdr

ZoLKoRn : on first post you show picture of X2 with mounted fan, can you tell me how big is that one gpu heatsink? thank you.

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It's not one gpu heatsink, it stock heatsink but i put fan on center between gpu1 and gpu2 :)

how to make fan spin @ 100% ?

Quote:

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Originally Posted by Sampsa

how to make fan spin @ 100% ?

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Riva tuner?

i can increase Mhz on GPU or MEM but in tests and games not even 1 Mhz is increased, tried 850Mhz, 875Mhz, RAM 950,975, no change? :(
also AMD GPU Clock dont run under 64vista? i get cannot load kernel driver.

EDIT : nevermind, i forget to disable XP compatibility, my bad. Though underclock works, overclock dont, if i do autotune thru overdrive, at 860 it goes blackscreen, which is a known issue but anyone got any fix for that?
ZoLKoRn : you didnt have problem with 860+ clocks?

Ok i toyed a little more with AMD GPU Clock Tool and all i needed is to set all in AMD GPU Clock Tool and now it changes on both cores at once.

I can't believe there is not a way to apply settings at startup like in riva.

Also, riva doesn't work on any level with the x2...

How are you altering fan speeds?
Is the bios flash available? cba with applying settings manually after every shutdown/reboot!

Thanks

Good question, i cant seem to find way to alter fan speed, ati tool dont have fan option, so i guess i need to remove part of cooler like zolkorn did and place some fan(s) on it.
Its terrible, second gpu always get 15-20C hotter then first one.

Quote:

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Originally Posted by Sampsa

how to make fan spin @ 100% ?

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Quote:

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Originally Posted by Jon Boy Deluxe

Also, riva doesn't work on any level with the x2...

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http://www.xtremesystems.org/forums/...1&postcount=20

http://img.photobucket.com/albums/v2...0x2_riva-1.png

you just have to add

Code:

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950Fh

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to the RV670 line in the CFG.

Yup, correct or you can feed 12V direct to the fan

Quote:

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Originally Posted by 3oh6

you just have to add

Code:

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950Fh

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to the RV670 line in the CFG.

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Great, thanks!

or you can simply short the red and blue wire on the fan header ;) it will spin the FAN to 100% :D

How does everyone like their x2 so far? I was thinking of selling my 8800gt and blowing some dough. should I do it?

I did what zolkorn does with cooling but put 12cm on passive blocks
and this is idle temperature :)
http://img502.imageshack.us/img502/272/gpuku7.jpg

besides ever wondered why second gpu got more temperature, like 15-20C? well because one is copper and second aluminium.

Quote:

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Originally Posted by spajdr

I did what zolkorn does with cooling but put 12cm on passive blocks
and this is idle temperature :)
http://img502.imageshack.us/img502/272/gpuku7.jpg

besides ever wondered why second gpu got more temperature, like 15-20C? well because one is copper and second aluminium.

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are both copper/aluminium heatsinks same dimensions exactly ?

nice results ZoLKoRn :up: , what bios did you used for 3870x2 ?

Quote:

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Originally Posted by eva2000

are both copper/aluminium heatsinks same dimensions exactly ?

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yes, same dimension.

one 3870X2 is really near 2 3870 crossfire
i have made 2 3870 crossfire and take 30600 on 3dmark05 with one e8500@4650
next week arrive one 3870X2 and i try it

Quote:

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Originally Posted by hey

nice results ZoLKoRn :up: , what bios did you used for 3870x2 ?

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It's default bios non mod anything :)

My first 3870 X2 numbers with stock cooling. QX9770 under cascade:

http://plaza.fi/s/f/editor/images/X-...1921087654.jpg

http://plaza.fi/s/f/editor/images/X-...1921107656.jpg

http://plaza.fi/s/f/editor/attachmen...rk06_24572.png

http://plaza.fi/s/f/editor/attachmen...rk05_34095.png

Nice work mate, and that cascade is just sex in a box :D

Nice! Sampsa :up: my card can't touch 931MHz it can run only AM3 on sometime :(

my visiontek 3870 x2 just came.
I know you need the 6 pin and 8 pin connectors plugged in for o/cing in overdrive but do I need the 8 pin connector to overclock using riva tuner/amd gpu clock tool? or will 2 x 6 pin work?

Quote:

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Originally Posted by trans am

my visiontek 3870 x2 just came.
I know you need the 6 pin and 8 pin connectors plugged in for o/cing in overdrive but do I need the 8 pin connector to overclock using riva tuner/amd gpu clock tool? or will 2 x 6 pin work?

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just like the others with the 8 pin it will be fine on 2 x six pin, just no overdrive.

can anyone help?
I got the card installed and using amd clock tool with the patch from nordic but I benched at stock and got about 17,630 and benched after I applied the clocks and got close to the same score??
clock I set was 890/945 for both cores in amd gpu tool/

Did sampsa use the same method as zolkorn for his incredible overclock?
anyone want to collaborate and we do an official guide for x2 overclocking? I'll write it.

Quote:

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Originally Posted by Sampsa

My first 3870 X2 numbers with stock cooling. QX9770 under cascade:

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Great numbers Sampsa
3870 is stock cooling?

trans am, OC'ing is pretty basic and is just AMDGPUClockTool+patch.
Set the clocks you want on both devices, and go for it.

In case you're looking to OC with voltage and a BIOS flash you might want to check this tool out

I'm just using AMD Overclock Tool to raise the clockspeeds and Rivatuner to set fan speed @ 100%.

ATi 38xx Bios Editor V0.91 Beta Download Link: http://www.dr4gon.net/ocn/atibiosedit_091Beta.zip

Quote:

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Some things to mod with it are lowering the 2D clocks, lowering the 2D Voltages (maybe for less heat during idle), raising the 3D Clocks in the BIOS so you don't have to "overclock" ever, raising the 3D voltages (careful, make sure you have adequate cooling).

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thanks everyone. I'll try again later.
PS. HOW DO I GET THE FAN OPTION IN RIVA AGAIN? i tried power user ati overclock setting fan +1 but still no option. I totally forget this one. anyone?

Quote:

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Originally Posted by trans am

PS. HOW DO I GET THE FAN OPTION IN RIVA AGAIN? i tried power user ati overclock setting fan +1 but still no option. I totally forget this one. anyone?

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You mean adjust fan speed by rivatuner right ?, added " 950FH " in the rivatuner.cfg file on RV670 line ;)

Quote:

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Originally Posted by ZoLKoRn

You mean adjust fan speed by rivatuner right ?, added " 950FH " in the rivatuner.cfg file on RV670 line ;)

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YES! Thanks man! :toast2:

everything's working great now except gpuz always reports clocks exactly half of the actual clocks I set??

got the fan working in riva at 100% and I got one core BN3 931.5/1017 and BN4 is 931.5/1017

I'll run each core and mem slightly higher and then bench until I get some video error message to find out each max. I think I can push the mem further with some better ambient temps.
I had one side as high as 1044 mem. I can run 945 core on Bn3 but in FF forest as soon as the 2 lights leave the treetrunk at the end of the test i crash to desktop. I might need to put the case by the window later and rebench.

here are the window cold air results: http://www.xtremesystems.org/forums/...d.php?t=177692 :toast: