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5 GPU Rig under Win 7 x64
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Topic: 5 GPU Rig under Win 7 x64 (Read 1074 times)
Exciter666
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5 GPU Rig under Win 7 x64
February 07, 2014, 05:14:18 PM
#1
I'm running 4x AMD 270x well under Win 7 x64 (6GB RAM, 1500W PSU)
Now i'm trying to install 290X without any success (always error 43 in Win).
Tried to install Linux whole day, but i'm too dumb for that
Is there anybody who has 5 or more R9 270X (280X/290X) on 1 Mainboard with Win 7?
Blazed
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Re: 5 GPU Rig under Win 7 x64
February 08, 2014, 02:08:27 AM
#2
For 5 gpu under Windows 7 you have to use 12.6 drivers....or the last GPU will not work (yellow exclamation in device manager). With 7950's it hashes full speed no issues...on newer GPU you will loose speed with the old driver.
Exciter666
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Re: 5 GPU Rig under Win 7 x64
February 08, 2014, 04:58:59 PM
#3
Yup, tried Win 8.1 last night, but without success. I cant get the same speed with 1x 290x and 4x 270x.
I'm back to Win 7 now with 4 cards 1x 290X + 3x 270X).
Dunno why i can't manage to get the same hashrates under Win 8.1.
I tried the same settings as under Win 7, but the latest WHQL and BETA drivers kept crashing...
ineedit
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Re: 5 GPU Rig under Win 7 x64
February 08, 2014, 05:02:54 PM
#4
Quote from: Exciter666 on February 08, 2014, 04:58:59 PM
Yup, tried Win 8.1 last night, but without success. I cant get the same speed with 1x 290x and 4x 270x.
I'm back to Win 7 now with 4 cards 1x 290X + 3x 270X).
Dunno why i can't manage to get the same hashrates under Win 8.1.
I tried the same settings as under Win 7, but the latest WHQL and BETA drivers kept crashing...
I would be interested to know what motherboard you are running?
If I have been help then please show your thanks BTC: 127PRogAVZiV3fEmpJERh9KemK3a3Ffh6G LTC: LXghFL8mZffpTFkm2nRTesuDrV5DJQP3Js
Exciter666
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Re: 5 GPU Rig under Win 7 x64
February 08, 2014, 08:04:11 PM
#5
I tried to build this rig with an Asrock H81 Pro BTC.
It seems that the new AMD beta driver causes the problems with the low hashrates.
Spend about 16 hours to fix that, but no clue.
I'm back now to Catalyst 13-12/Win7 x64 and hashrates are proper again.
But 1 270X lies bored on the table now...
hyperionx
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Re: 5 GPU Rig under Win 7 x64
February 08, 2014, 08:35:58 PM
#6
I've just assembled a 5 gpu rig. Granted, 5 x 280x but the only driver I could use to make it work was this:
https://litecointalk.org/index.php?topic=11761.0
Followed the instructions but I had to update the drivers twice, dunno why. Be prepaired for a lot of screen flickering/shutting off for a good while when updating the drivers at itll go through all of the cards.
Needs to be noted though, no idea if this'll work for you with 270's and 290. But it looks like it could.
Edit: oh yeah, im on windows 7 x64
Exciter666
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Re: 5 GPU Rig under Win 7 x64
February 08, 2014, 09:55:18 PM
#7
Thx for the link.
Will check that tomorrow morning and report.
Can't stand another night without sleep
Omikifuse
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Re: 5 GPU Rig under Win 7 x64
February 09, 2014, 01:43:09 AM
#8
Quote from: Exciter666 on February 07, 2014, 05:14:18 PM
I'm running 4x AMD 270x well under Win 7 x64 (6GB RAM, 1500W PSU)
Now i'm trying to install 290X without any success (always error 43 in Win).
Tried to install Linux whole day, but i'm too dumb for that
Is there anybody who has 5 or more R9 270X (280X/290X) on 1 Mainboard with Win 7?
A lot forum ppl say its possible but you need special driver but it would be easier if you use win 8.
Exciter666
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Re: 5 GPU Rig under Win 7 x64
February 09, 2014, 08:39:25 AM
#9
Aaaargh. Now i plugged the 5th card in and it won't show up in the device manager.
That wasn't a problem yesterday.
Exciter666
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Re: 5 GPU Rig under Win 7 x64
February 09, 2014, 10:37:11 AM
#10
OK, all fine now!
Put out the bios battery for about 5 minutes and installed the gpu driver with the modified inf files.
That was it.
I had contact to AMD support before and they told me, that it isn't their fault: driver supports as much gups as i can plug in.
Bloody liars!
Thx again to all!
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