CF 2900xt 1Gb on water

[binormalkilla]

Well I've been OCing these since I put some MCW60s on them, and I'm pretty satisfied.
I OC by flashing the BIOS with the Quantum Force BIOS editing program that was recently released....
950/1075 @ 1.35V (max the tool allows)
My VRMs are getting HOT even though I have Swiftech MC21s on them. I ordered some more copper ones to replace these, as they suck...

(http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=54_43&products_id=21214)
Anyhow, my idle temp is 28-32C per GPU depending on ambients, VRM is loading at 55C....
Here is 3dmark with my Q6600 at 3.8 GHz in VIsta x64
http://aycu39.webshots.com/image/38238/2002215847008511383_rs.jpg
What are you guys with overvoltage getting on the VRMs/with what cooling?
Cheers:toast:

[EXPANDER]

good performance.

[binormalkilla]

Thanks :D

[ownage]

Great clockspeeds and score.
You run 950core on 1.35v?
Then my card is just weird, because i need over 1.5v for that.
I use an 1.35v bios, and set the clockspeed but thats not stable. I have to set more voltage in ATITOOL before i run a benchmark. I guess my card just sucks.

[binormalkilla]

Great clockspeeds and score.
You run 950core on 1.35v?
Then my card is just weird, because i need over 1.5v for that.
I use an 1.35v bios, and set the clockspeed but thats not stable. I have to set more voltage in ATITOOL before i run a benchmark. I guess my card just sucks.

Yea I only use 1.35V for 24/7 even know that ATI TOol supported voltage control on the 1Gb yet.....but I won't set it higher....My VRMs get insanely hot.....I added some heatsinks to the Pulse chips that are next to the VRMs. I'm not really sure what they do, but they get really hot.

[binormalkilla]

So any other results? I'd really like to see what you guys are getting for VRM temps.......

[binormalkilla]

Here are my VRM temps after playing COD4 at my sig overclock for ~20 minutes.
I definitely need a reseat on the second GPU.....temps are way higher.
http://www.overclock.net/attachments/ati/62514d1198804392-i-need-2900xt-pro-temp-data-gpu-vrm-temps-5-min-cod4

[mascaras]

you got almost same score as i with HD3870CF 870/1250 and q6600 @ 3895Mhz , but you are in VISTA and im using XP , so you have a good score



here´s mine:


Q6600@3895Mhz (aircooled @ thermalrght extreme)

HD3870 CF @ 870/1250 - Stokcooled (CCC clocks / GPU-Z show ~860Mhz )

3Dmark 2006 = 20400 Marks (No tweaks @ 24/7 OS)


http://img147.imageshack.us/img147/5580/20400markshs0.jpg (http://imageshack.us)

http://service.futuremark.com/compare?3dm06=4184277


card not Max OC of course



regards

[binormalkilla]

Hey that's a really nice score man! I really wish that I would've waited and just bought two 3870s before getting my second 2900xt 1Gb......however I'm not sure how they perform at high res (I run 1920x1080)
Here I am at 4 GHz on the quad:
http://aycu37.webshots.com/image/38596/2003858850645781047_rs.jpg




EDIT:



I also got my ENzotech low profile copper RAMsinks in today (for clearance space for my Xonar sound card) and I put my Swiftech copper sinks on the pulse chips (they were naked....)
Hopefully this will help alleviate the driver reset that experience sometimes, as well as keep that PCB cooler!