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From: Carl on 10 Jan 2008 04:33
I recently recieved my second HD3870, I tried to set up crossfire, the
driver installed fine, on reboot, when I go to device manager, it has a
warning against the first card, code 43. This is a software problem. I run
vista home premium 64 bit, a Q6600 @ 3.0Ghz, 8Gb ram, auzentech prelude
soundcard, terratec tv card, 4xx WD 500GB sata2 drives, all this is on an
asus maximus formuls motherboard. All software/ drivers are up to date. I am
thinking that the cause of this problem is simply poor drivers from ATi, and
I'd appreciate a few opinions before I begin to start trying to assign IRQ's
at the bios level. TIA

From: JamesH on 10 Jan 2008 17:30
Is your 1870 Crossfire of CrossfireX? CrossfireX will not run on a Crossfire
MB.

"Carl" <me(a)theworld.universe> wrote in message
news:aLednUg1DZX_exjaRVnyhQA(a)bt.com...
>I recently recieved my second HD3870, I tried to set up crossfire, the
>driver installed fine, on reboot, when I go to device manager, it has a
>warning against the first card, code 43. This is a software problem. I run
>vista home premium 64 bit, a Q6600 @ 3.0Ghz, 8Gb ram, auzentech prelude
>soundcard, terratec tv card, 4xx WD 500GB sata2 drives, all this is on an
>asus maximus formuls motherboard. All software/ drivers are up to date. I
>am thinking that the cause of this problem is simply poor drivers from ATi,
>and I'd appreciate a few opinions before I begin to start trying to assign
>IRQ's at the bios level. TIA


From: First of One on 10 Jan 2008 18:33
Ignore JamesH's comment (CrossfireX has no relevance here since you are
dealing with only two cards).

When upgrading to a Crossfire setup, ATi recommends uninstalling the driver
for the existing card, then reinstalling driver for both cards at the same
time.

If that doesn't work, try the fix suggested here. Works for some people:
http://www.neowin.net/forum/index.php?showtopic=492316&view=findpost&p=587866108

Remember that Crossfire doesn't come enabled by default. Until you click on
the "enable Crossfire" checkbox in Catalyst Control Center, Windows treats
this as a simple multi-card setup (commonly used to drive 3-4 monitors,
etc.). A multi-card setup is a fairly basic driver functionality; it's not
too likely for ATi to screw up that bad.

Aside from the little icon in Device Manager, can you continue loading
Windows and opening applications, or does the Code 43 error message stop you
from using the comp?

--
"War is the continuation of politics by other means.
It can therefore be said that politics is war without
bloodshed while war is politics with bloodshed."


"Carl" <me(a)theworld.universe> wrote in message
news:aLednUg1DZX_exjaRVnyhQA(a)bt.com...
>I recently recieved my second HD3870, I tried to set up crossfire, the
>driver installed fine, on reboot, when I go to device manager, it has a
>warning against the first card, code 43. This is a software problem. I run
>vista home premium 64 bit, a Q6600 @ 3.0Ghz, 8Gb ram, auzentech prelude
>soundcard, terratec tv card, 4xx WD 500GB sata2 drives, all this is on an
>asus maximus formuls motherboard. All software/ drivers are up to date. I
>am thinking that the cause of this problem is simply poor drivers from ATi,
>and I'd appreciate a few opinions before I begin to start trying to assign
>IRQ's at the bios level. TIA


From: KCB on 10 Jan 2008 18:45
>
> "Carl" <me(a)theworld.universe> wrote in message
> news:aLednUg1DZX_exjaRVnyhQA(a)bt.com...
>>I recently received my second HD3870, I tried to set up crossfire, the
>>driver installed fine, on reboot, when I go to device manager, it has
>>a warning against the first card, code 43. This is a software problem.
>>I run vista home premium 64 bit, a Q6600 @ 3.0Ghz, 8Gb ram, auzentech
>>prelude soundcard, terratec tv card, 4xx WD 500GB sata2 drives, all
>>this is on an asus maximus formuls motherboard. All software/ drivers
>>are up to date. I am thinking that the cause of this problem is simply
>>poor drivers from ATi, and I'd appreciate a few opinions before I
>>begin to start trying to assign IRQ's at the bios level. TIA
>
>

"JamesH" <jamesh37(a)comcast.nospam.net> wrote in message
news:pJKdnb_TwtYUARvanZ2dnUVZ_gCdnZ2d(a)comcast.com...
> Is your 1870 Crossfire of CrossfireX? CrossfireX will not run on a
> Crossfire MB.

All 3870s are crossfire X. That only means it will work with more than
2 GPUs, if the motherboard supports it. It doesn't mean it won't work
with a crossfire motherboard, it IS crossfire.


From: Carl on 11 Jan 2008 02:53
When upgrading to a Crossfire setup, ATi recommends uninstalling the driver
for the existing card, then reinstalling driver for both cards at the same
time.

That's what I did.


Remember that Crossfire doesn't come enabled by default. Until you click
on
the "enable Crossfire" checkbox in Catalyst Control Center, Windows treats
this as a simple multi-card setup (commonly used to drive 3-4 monitors,
etc.). A multi-card setup is a fairly basic driver functionality; it's not
too likely for ATi to screw up that bad.

I have no checkbox in the CCC to enable crossfire!


Aside from the little icon in Device Manager, can you continue loading
Windows and opening applications, or does the Code 43 error message stop you
from using the comp?

The PC boots, and everything runs. When I check in device manager, I have an
exclamation mark against the first 3870 in the list, properties reveal the
code 43 error. Also, I only have one Crossfire connector between the two
cards, which I have plugged into the left connectors, nearest the DVI
output, as I only got one supplied. I assume that it only needs one? I'll
try the fix suggested and see what happens. Thanks so far, First!

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