Bitcoin Forum
May 24, 2019, 12:16:05 PM *
News: Latest Bitcoin Core release: 0.18.0 [Torrent] (New!)
 
   Home   Help Search Login Register More  
Pages: [1]
  Print  
Author Topic: 5th GPU not showing up for work  (Read 2160 times)
BigJim
Newbie
*
Offline Offline

Activity: 12
Merit: 0


View Profile
May 30, 2013, 09:38:40 AM
Last edit: May 30, 2013, 10:49:07 AM by BigJim
 #1

Motherboard is MSI Z77A-GD65 GAMING.
Windows 7 enterprise.
Five 7850's.
5th card does not show up in GPU-Z.

What is the basic advice in this situation?

1558700165
Hero Member
*
Offline Offline

Posts: 1558700165

View Profile Personal Message (Offline)

Ignore
1558700165
Reply with quote  #2

1558700165
Report to moderator
GET 25 FREE SPINS AT REGISTRATION
GET 100% BONUS ON FIRST DEPOSIT
PLAY NOW
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
laris2
Hero Member
*****
Offline Offline

Activity: 673
Merit: 500


CryptoCurrency Evangelist


View Profile
May 30, 2013, 09:58:26 AM
 #2

Motherboard is MSI Z77A-GD65 GAMING.
Windows 7 enterprise.
Five 7850's.
5th card does not show up in GPU-Z.

What is the basic advice in this situation?


Hi,
That could be windows not seeing the 5th gpu.
I did hear it is a windows issue that it's only able to see 4 gpus. Try seeing amount of devices on linux? (Little bits of speculation here)

   
▄████▄       
██████       
▀████▀       
▀██████      ▄▄▄▄▄▄▄▄▄▄▄▄   
▄▄█████  ▄██████████████████▄
▄██████▀██  ████████████████████
▄█████▀    ▀  ████████████████████
▄█████▀         ███ ████████████ ███
██████▀          ███ ████████████ ███
███████           ███ ████████████ ███

▄████▄                  ███████   
██████                 ▄██████     
▀████▀                ▄█████▀     
▄▄▄▄▄▄▄▄▄▄▄▄      ▄    ▄█████▀       
▄██████████████████▄  ██▄ █████▀         
████████████████████  ██████▀▀           
████████████████████  ██████▄             
███ ████████████ ███                     
███ ████████████ ███                     
███ ████████████ ███                       
  [    |    ████████████████████████
████████████████████████
███            ▀████████
███  ███████  ▄  ▀██████
███           ██▄  ▀████
███  ███████  ████▄  ███
███                  ███
███  ██████████████  ███
███                  ███
███  ██████████████  ███
███                  ███
████████████████████████
████████████████████████
  ] 
FACEBOOK  )   (  TWITTER  )
  .SUBSCRIBE NOW!!!. 
INSTAGRAM  )  (  LINKEDIN  )
operaficionado
Newbie
*
Offline Offline

Activity: 7
Merit: 0


View Profile
May 30, 2013, 10:17:26 AM
 #3

Motherboard is MSI Z77A-GD65 GAMING.
Windows 7 enterprise.
Five 7850's.
5th card does not show up in GPU-Z.

What is the basic advice in this situation?



Hey, I am setting up my first rig on Ubuntu and I haven't been able to fit 5 GPUs on my motherboard, but 4 works perfectly Smiley maybe you should give Ubuntu a shot and see if it works for you.
BigJim
Newbie
*
Offline Offline

Activity: 12
Merit: 0


View Profile
May 30, 2013, 10:20:11 AM
 #4

I have heard, disable some devices in BIOS. That is pretty easy I will try that.

Some claim that Windows 7 can handle 5 GPU. Change to Windows 8 or Linux would take a while.

I guess I can also try different slots for the 1x adapters. This motherboard has 4 1x slots and 3 16x. I do have an ivy bridge cpu so in theory even 7 GPU is possible.
BigJim
Newbie
*
Offline Offline

Activity: 12
Merit: 0


View Profile
May 30, 2013, 10:36:12 AM
Last edit: May 30, 2013, 10:47:48 AM by BigJim
 #5

Disabled 1 or 2 peripherals in the BIOS. Not much available. And no change. Still only 4 GPUs. According to GPU-Z. And the device manager has one Unknown Device.

Forum thread has people saying Windows 7 can do 5 GPU or more.

https://bitcointalk.org/index.php?topic=103244.20
https://bitcointalk.org/index.php?topic=188334.0

Sure ain't working for me though. Might depend on the AMD driver version?

Found this. May try w8. That might give me 5. Or even 6 with additional tweak.

https://bitcointalk.org/index.php?topic=215987.0
dimke_yu
Sr. Member
****
Offline Offline

Activity: 456
Merit: 250



View Profile WWW
May 30, 2013, 11:31:27 AM
 #6

Well you need to try out with different types of extenders. Every motherboard has its own settings. Also I recommend you to try to set up a Linux miner as it is far more stable and easier to work with. I only use windows for testing max clocks and bios flashing.

BigJim
Newbie
*
Offline Offline

Activity: 12
Merit: 0


View Profile
May 30, 2013, 12:10:35 PM
 #7


All 5 cards are 7850. Well, some are 1GB and some are 2GB. And some are different brands. But I can get any 3 of them to work. All are on 1x to 16x extenders.

Which linux distro? Are there any that "just work". That support more recent motherboards. And can easily get the AMD drivers.
dimke_yu
Sr. Member
****
Offline Offline

Activity: 456
Merit: 250



View Profile WWW
May 30, 2013, 12:24:57 PM
 #8

Well as for linux part there are number of distros that work well, only all-in-one solution is BAMT but I do not like it as it is live version. I use CentOS on 16GB usb flashdisk with minimal install options. From there you need to download all dependencies drivers and stuff install then configure it. If you have some linux knowledge and experience it should not be problem to make it work.

BigJim
Newbie
*
Offline Offline

Activity: 12
Merit: 0


View Profile
May 30, 2013, 12:44:03 PM
 #9

Here, BAMT is discussed. Looks like I can try it off a USB stick without yet stepping on my w7 install.

https://forum.litecoin.net/index.php?topic=2924.0
dimke_yu
Sr. Member
****
Offline Offline

Activity: 456
Merit: 250



View Profile WWW
May 30, 2013, 01:28:30 PM
 #10

Yes that is correct. Try it out.

lbr
Sr. Member
****
Offline Offline

Activity: 424
Merit: 254


View Profile
May 30, 2013, 01:43:43 PM
 #11

And the device manager has one Unknown Device.

Maybe it is ur 'lost' GPU? ; )

BTC: 18ozhbkfHneX8tnPgHJuTizyBmspM5Vgpa  LTC: LgVc7KdedPGZyDXHXEH9G7z6AoTmTvDdWb
cgminer 2.11.13 x64 portable for Mac OS X 10.6.8
6+ GPUs driver mod for Windows
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!