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Crossfire Clubhouse

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i use one some days and 2 on others sometimes it dont matter sometimes it does.
 

crazyeyesreaper

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use both crossfire bridges even AMD / ATI say to do so i dont know why but thats what they say to do so i wouldnt really argue with that ;)
 

HELLSPAWNPR

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on my two xfx 4770 works the same with one or two so i just left one on. Still rockin :)
 

ny_driver

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ok I'm looking for suggestions please on how to overclock these cards. I just tried Ati Tray Tool and as soon as I set it to 850MHz from 240MHz I got the black screen. And when I started the 3d renderer the core stayed at 240MHz for some reason. What gives?
 
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ati try tools is to buggy for me, I use mis afterburner myself or gpu tool
 
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One or two bridges makes no difference with my 4830s. Just using one now.
 
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on my two xfx 4770 works the same with one or two so i just left one on. Still rockin :)

One or two bridges makes no difference with my 4830s. Just using one now.

Yes. I only came across it using 4890's. I use two for my 5850's as well. If you have two bridges you might as well use them.
 
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Point taken. It certainly doesn't hurt anything and can only help it seems.
 
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You can add my pair of 4870s to the group.:toast:
 
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My oh my, what empty PCI-Express slots have I. My Crossfire set that Fold, was abruptly shut down and then sold.
But fear not, as a ASUS HD5870 is soon gonna fill there slot.

Yeah, never knew I could rhime xD
 

ny_driver

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I finally got crossfire working right, although with only 1 bridge, and it only gained me 600 3d points over either card by itself.

I had to install the drivers for each card to get them to both clock up on the core during 3d apps. That's probably why I got black screen when I tried overclocking yesterday. I'm going to try overclocking again now.

Anyone else got a Sapphire card with the lights on top? What do they mean and how many lights are there?
 
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good to hear you solved the problem:D

this is what i found in some other post

The three lights are supposed to come on when the computer boots. They signify that the card is going through its internal POST. They will all flash once, then turn off if the POST is successful.

If a single light stays on then there is something wrong. Otherwise the issues is in a different part of your machine. Depending on which light stays on indicats a particular error.
 

ny_driver

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ok cool...it has 3 lights(where it looks like there should be 4), and they flash once then again a few seconds later, then they go out. I'm testing the cards individually now@ 900/1000 and the XFX did great for 20 minutes until I shut it off, but I think the sapphire is causing some weird screen flickering when I overclock it. I tried running 3dmark in crossfire with them both overclocked and there was some flickering and screen corruption, so I decided I must test them seperatley. I'm not getting any artifacts, but the screen definitely flickers some when I overclock the sapphire.
Actually running the artifact tester seems to stop the flickering, but it starts again as soon as I turn it off. This is not good.
EDIT: yeah, the XFX blasts through 3dmark overclocked....I gained 200 points with the XFX @ 900/1000. I'm going to see how high it will go. What's average?
The Sapphire is back in the box.:(
 
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where are the screens flickering?? like your desktop?? or in between tests?? sounds like its powerplay to me, which is the drivers clocking down when 3d power isnt being used, I use a modified CCC profile to take care of this because all refrence cards have this problem, and its the memory clock that does it. are you still using XP or did you switch to vista/7??
 

ny_driver

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still using xp, and it's not so much the flickering but the screen corruption in 3dmark. I don't think it is the drivers clocking down, but it may need more voltage like you say. Testing now brb.
 
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just thought I would throw this out there for you guys to see. :D oh this is on stockair cooling btw
 

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ny_driver

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just thought I would throw this out there for you guys to see. :D oh this is on stockair cooling btw

How did you get them to run so high? I want mine to run @ 1000/1100 :toast:........I can keep them cool with fans.

Although for some reason, I got more 3d points with the cards @ stock timings than with them overclocked to 900/1000. I should retest.

How come I am limited to 1.35v, and only have voltage adjustment on the 1 card? Can't I flash the bios on the card to give it voltage adjustment?

I've got next week off from work so I'll have plenty of time to test the new system.:pimp:
 
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if your second card is non ref (like mine) no amount of bios flashing will change it. it does not have the same voltage regulator on it, the one it has is cheap and cannot be changed via software (that anyone knows of)
 

FreedomEclipse

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just thought I would throw this out there for you guys to see. :D oh this is on stockair cooling btw

I cant use the voltage tweaks because my sapphire 4870s not supported :cry::cry::cry:
 
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do you use afterburner?
 

FreedomEclipse

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no i havent tried that yet - I was giving gputool a go
 
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dl afterburner.

install it, dont run it
go to the destination folder, open msiafterburner.cfg with wordpad or similar

change this line : enableunofficialoverclocking 0 to enableunofficialoverclocking 1 and save

start msi afterburner, go to settings and unlock voltage control
 

Mussels

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dl afterburner.

install it, dont run it
go to the destination folder, open msiafterburner.cfg with wordpad or similar

change this line : enableunofficialoverclocking 0 to enableunofficialoverclocking 1 and save

start msi afterburner, go to settings and unlock voltage control

afaik 4870's dont have voltage control, but 4890's do
 
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didnt know that:p

then he have to get them volt modded:D

ill be getting my 5850 volt modded in 2 weeks
 
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