2900 Pro Owners Thread

[jorgito05]

The reason current clocks are low is because it is in 2D clocks when not under a load. Which Catalyst version are you running? I never seen one go over 900 on memory?

Thanks for your quick responce! To answer your question; I have version

2008.0122.1519.27310. How can I see performance when running something?

[nickless]

Hope you, or someone can help me!

Right now with my mild overclock and just one card I get the following score; I know they are bad, hope this will change when my second GPU arrives wednesday:
...

What do you suggest?
Is this because I am not runing something now or what? also how can I monitor this while playing a game or something that demands performance.

Please advise! thank you in advance

Man, push this QX6850. 8*400 is too low for this beast. And use ATI tool 0.27b3 to rise Vcore voltages. As I see you are on water, you can flash your card with Vmod bios 1.35v without problems. I use 1.35v Vmod bios and the temps are 53-55*C under load with 1007 GPU. Your sistem have big potential for performance.

[jorgito05]

Man, push this QX6850. 8*400 is too low for this beast. And use ATI tool 0.27b3 to rise Vcore voltages. As I see you are on water, you can flash your card with Vmod bios 1.35v without problems. I use 1.35v Vmod bios and the temps are 53-55*C under load with 1007 GPU. Your sistem have big potential for performance.

Well as you can see I am a noobe, thanks for your help. Where do I find this ATI tool; Do I have it somewhere or do I have to download it. With regards to my mild overclock, man I just spent 5 grand on this pup and I have been chicken about overclocking. I am new at this and have been afraid to burn something up, just the CPU alone cost me 1000$. I guess I'll have to get up some courage and start experimenting.

Besides This Maximus board is a little buggie, it tends to overvolt, I have seen some guys on the Maximus thread fry their s**t.

[ZenEffect]

Well as you can see I am a noobe, thanks for your help. Where do I find this ATI tool; Do I have it somewhere or do I have to download it. With regards to my mild overclock, man I just spent 5 grand on this pup and I have been chicken about overclocking. I am new at this and have been afraid to burn something up, just the CPU alone cost me 1000$. I guess I'll have to get up some courage and start experimenting.

Besides This Maximus board is a little buggie, it tends to overvolt, I have seen some guys on the Maximus thread fry their s**t.

i havent fried anything on my maximus YET

but the things it over volts are

ram
north bridge
front side bus term
cpu ppl

make sure on your mobo to set all the voltages. no voltage should be left on auto.

[003]

Would anybody be able to do a test to see if the stable core speed is higher on a volt modded xt bios than a volt modded pro bios?

I always thought the pro bios was better because the memory benched faster. Is this not the case?

[jorgito05]

i havent fried anything on my maximus YET

but the things it over volts are

ram
north bridge
front side bus term
cpu ppl

make sure on your mobo to set all the voltages. no voltage should be left on auto.

I Know ram should be on 1.8v for my particular ram, but what do you recomend for:
NB:
FSBT:
CPU PLL:
CPU voltage: 1.312
I am either running stock 3.0G or sometimes 3.2 (400Mgz*8) to get the 1:1 ratio with my mem.

[ZenEffect]

I Know ram should be on 1.8v for my particular ram, but what do you recomend for:
NB:
FSBT:
CPU PLL:
CPU voltage: 1.312
I am either running stock 3.0G or sometimes 3.2 (400Mgz*8) to get the 1:1 ratio with my mem.

i dont have the same type of cpu as you and thus i cant make a recommendation

[jorgito05]

i dont have the same type of cpu as you and thus i cant make a recommendation

Well I appreciate your sugestions, and will set on manual for voltages.

Thank you!

[road-runner]

Forgot to plug in my Eheim 1250 pump today on my 2900s loop after trying out a 3870x2, it got hot one of the hose blew off one of the cards and got everything wet. I heard it when it happened and ran and unplugged it. It was in the process of rebooting when I jerked the chord from the power supply. I got everything apart and drying, been using a hair drier also. I will put it back together tomorrow and see what happens...

[MadDias]

damn... u mean the water got so hot that the hose blew off?
then it must have been boiling hot. hope ur card is not dead.
get urself a 12v eheim pump, one thing less to care about when u fire up ur system

[003]

Is there any way I can check the VRM temps without installing rivatuner? It's settings seem to conflict with those of both ATITool and CCC and I want to have a very hassle free software configuration here.

EDIT:
And you know what would be totally wicked .... a waterblock that fits the 2900 VRMs!!

[road-runner]

damn... u mean the water got so hot that the hose blew off?
then it must have been boiling hot. hope ur card is not dead.
get urself a 12v eheim pump, one thing less to care about when u fire up ur system

Yes it got that hot, it smelled like a hot car after a radiator hose bust. I have a brand new DDC w/petras top but did not use it on the loop for fear of it failing and burning the cards up. I think I will use it next time...

[MadDias]

Is there any way I can check the VRM temps without installing rivatuner? It's settings seem to conflict with those of both ATITool and CCC and I want to have a very hassle free software configuration here.

EDIT:
And you know what would be totally wicked .... a waterblock that fits the 2900 VRMs!!

with the new gpu-z u can monitor all vrms.
my waterblocks cover the vrms, 60°C under load at 1.15v gpu.

[003]

What WBs do you have??

EDIT:
Looking at my VRMs under load, I see the temp of them varies greatly. For example the Slave #3 sits at 90C but the Slave 6 at 65C. Is this normal?

[road-runner]

I got lucky, all hardware survived the water...

[MadDias]

What WBs do you have??

EDIT:
Looking at my VRMs under load, I see the temp of them varies greatly. For example the Slave #3 sits at 90C but the Slave 6 at 65C. Is this normal?

I´m using the Innovatel Cool-Matic R600 waterblocks.
I guess it´s normal for the vrms to vary in temperature. some of them feed the gpu, which is very power hungry. not all parts on the card need that much power, so some of the vrms don´t get that hot.

[jorgito05]

I got lucky, all hardware survived the water...

It's good to hear that your back on, I felt for you when I read what happend. I would be saying, thank you lord 3x

[ZenEffect]

I got lucky, all hardware survived the water...

lucky you
i had a x-fi elite pro that had a few drips on it and it fried. had to send it back in for warranty (got it back already and im SOOOO glad to be off the stock sound card)

[jorgito05]

Finnaly got my second 2900xt installed and running Crossfire.

I water cooled them both. see pic I posted on my signature.

[nickless]

Finnaly got my second 2900xt installed and running Crossfire.

I water cooled them both. see pic I posted on my signature.

Very nice and well-arranged PC Now we expect high overclock and results

[ZenEffect]

Finnaly got my second 2900xt installed and running Crossfire.

I water cooled them both. see pic I posted on my signature.

very nice cable/tubing management.
how many rads are you using?

[MadDias]

today i wanted to watch a hd movie on my lcd tv thru the hdmi adapter of one of my cards. the movie looked great on my tv, but after a few seconds i thought to myself "damn.. is it silent movie or what??"
there is no audio signal coming out of my cards anymore. neither in winxp nor in win vista x64. i´ve got all the latest drivers and hotfixes u need for hdmi audio in winxp, but it´s still dead silent. in win vista u don´t need any special drivers, they´re already integrated, but there is also no sound on my tv when i choose the ati hd audio device.
what the heck is going on? i had hdmi audio working a few months ago. and now when i really wanna watch a hd movie it´s gone.
could it be because i flashed the card bios? i even tried a stock pro bios from the techpowerup site, but still no sound to hear.
i don´t know what to do else to get it working again.
can somebody help me please?

[ZenEffect]

you need to set the playback to ati not your default sound card. its on the control panel under sound and audio devices. click the audio tab and select the ati device there.

[jorgito05]

Very nice and well-arranged PC Now we expect high overclock and results

Thank you for your compliment!

I must tell you though, I am realy dissapointed because between the additional GPU & Waterblock I spent around 664.00$, and did not get 664.00$ of additional performance. Before with a single card and while playing Crisis, I could set all video settings on high and ran flawlessly beautiful with the exeption of that if I set anty-alising past 2x it might stutter once in a while during hi action. Now with dual cards in crossfire I can go 8x and runs greate.

That is the only differance Also 3DMark06 doesent see the additional card, and my score only went from 12283 to 12321. Both scores are with no overclocking.

Is there something I have to do with 3DMark06?

[jorgito05]

very nice cable/tubing management.
how many rads are you using?

Thank you for your compliment!

With ref. to what rad I am using? Good question! Because the first thing I noticed is that my CPU idle temps jumped from 36°c to 47°c after installing the second card.

Reason being is that for my Chassis, I bought a Gigabyte 3Dmercury with a cooling system incorporated in it. The problem is that while this case is a very nice well built case, it uses nothing more than a souped-up 3D Galaxy liquid cooling system with a little better rad but yet small.

Following are some pics:





Looks like I will have to piggie-back something like the following units on the side:

http://swiftech.com/products/MCR220-qp.asp

http://swiftech.com/products/MCB-120-r2.asp

I plan on assembling something like the following, without having to buy the whole kit:

http://swiftech.com/products/H20-220-APEX.asp

I will assemble this set up with dual 120mm fans. I suspect that my pump may not be able to handle all these extra components. Do you think that I might be able to incorporate a second pump in line with out causing to much aggitation and spillage out the resevuar vent? The problem is that my pump and res. looks like a one unit assy.