Weird Crossfire...

Just went Crossfire some days ago (Sapphire X1900XTX + X1900CF) and I'm experiencing some problems with. I get 36'000pts with 3DMark01, 12'000pts with 3DMark05... is this normal ? Cards are at stock frequencies, haven't played with ATiTool yet with this XFire setup.

The real problem is what I'm experiencing "graphicaly". Here are some screenshots :

http://img477.imageshack.us/img477/5...20972ip.th.jpghttp://img477.imageshack.us/img477/5...21044ux.th.jpghttp://img473.imageshack.us/img473/5...21029jl.th.jpghttp://img528.imageshack.us/img528/8...21005nl.th.jpg

I'm running this on P5WD2-E (BIOS 0501), 620W Enermax PSU and 6.4 Catalysts (same with 6.3). Any idea ? :smoke:

Never seen that, it looks like composting is seriously out of snyc in that second shot. Tried a driver re-install yet?

Separatly, thoses cards work like a charm :|

Check if your dongle cable is attached correctly (the screws and nuts of the dongle match with the ones on the master card).

I have the exact same cards but I don't know what to tell you. I have a huge 24" Sony CRT and when I have these cards hooked up in Crossfire, I get small wavy distortion lines that come across the screen. Luckily, it isn't that noticeable while gaming. The waves show up when the processor is being worked (above 10% usage). This issue doesn't come up when just using 1 card.

With an FX57 at 3ghz, I get just under 15,000 in '05 - pretty good considering it's a single core.

My first assumption when X1900 crossfire cards go weird is the power supply. It's tough to tell if yours is adequate. Maybe someone else is using it that could give some feedback.

Well, it's time to uninstall your driver, repair-install Windows, and re-install driver.

Check your ram out too, while you are at it. Something is getting corrupted...not sure if it's chipset related or not tho.

Been through that many times...found out that my mobo was reseting DDS to auto when i rebooted. CFX3200. Thought was cpu at first, but now i'm 200 mhz higher than when i first had that issue.

Scratched my head for days over it. Switched tref, DS, DSS, lowered ramclocks, and all's well, cpu 200 mhz higher.


I think my ram might be dying, or maybe a bios issue...but i found the same behavior on RDX as CFX.


Mushkin XP4000 Redline 2GB, Infineon CE-6-based.

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Originally Posted by G H Z

Never seen that, it looks like composting is seriously out of snyc in that second shot. Tried a driver re-install yet?

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never? i seen it twice .. with HIS X1900CF and previously Asus EAX1900 CF :-)

The Stilt : on HIS i actually broke it by screwing it a little, its pretty easy to broke it on card, doesnt affect RMA, at least not from store i bought it, so this is not really needed.

And for all crossfire users, bookmark this
http://forums.guru3d.com/showthread.php?t=181125

We got some interesting finds with crossfire :)

This colorful edges reminds me of enabled alternate pixel center enabled, but it was with one card.

X-FI IRQ problem.. the Sound card share the same IRQ of the second GPU.. try change this..