Windows 8.1 Freezes with 3 GPU MIning Rig

CanadaWhite

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Feb 22, 2014
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I have had so many issues setting up this mining rig which have frustrated me to no end and I am hoping this is something simple because I have had this freezing problem previously. In that instance,of when it froze, I re-bought new Ram and a SSD and paid people off CL to fix it and they never were able to; but,. I was able to fix the issue by getting a new SSD drive.

Once the SSD and 1333 Mhz RAM were replaced I was finally able to set up the WIndows 8.1 operating system and the computer worked beautifully with one AMD 7950 Graphics card.

However, now that I have hooked up three of the AMD graphics cards it is once again freezing during the loading up of the Win 8.1 OS.

I have left a link to the spec with all of the parts to this mining rig which I originally followed to a T; however, the The intel G1620 Ivy Bridge CPU needed a 4G 1333 Mhz RAM card and not the Corsair 4G 1866 Mhz Card which the spec called for so I replaced it with the Transcend 4G 1333 Mhz Ram card.

As for the 32 G SSD that was recommended, it had so little room on it and the actual reason it was freezing before was that SSD was faulty so I purchased a 120 G SSD and got it working finally and was able to install the OS and use it for 2 days without any freezing problems.

The two AMD 7950 Ram cards and one AMD 7970 Ram cards and turned it on and once again it is freezing while it is loading the previously installed WIN 8,1 operating system.

My Power Supply is a Corsair Gold 1600 Watt unit which is brand new

The Motherboard in an MSI Z77 GD65 Z77a

Two of the AMD 7950 GPU's are plugged directly into the motherboard and the one AMD 7970 GPU is plugged in via a pci x1 to x16 extension cable with a powered riser.

Here is the spec I used to build the mining rig which I followed to a T.

http://www.coinminingrigs.com/how-to-build-a-6-gpu-mining-rig/

I am not sure the guy that wrote that article built it himself because as I mentioned, the Ram and CPU suggested were not compatible with each other.

I am hoping it is just a setting in the bios or the drivers need to be installed. I am thinking of switching to the Linux operating system instead of Win 8.1 as the tech guy at the Microsoft support line said that the OS may not support multiple GPU;s. Although the attached build spec does say that if you want to use multiple GPU's. Windows 8 would work best.

I would really appreciate any assistance advice offered as I am almost at the end of my rope with this mining rig after so many issues over the past 8 weeks. Thx/
 

c3h8

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Aug 8, 2008
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1. Install windows, finish the setup. [You should add as little as possible prior to having windows running correctly]

2. Disconnect all the graphics cards. Test each one INDIVIDUALLY in the Pci-Express x16 slot (don't use the risers). [Testing the graphics cards]
2.b Once the cards are confirmed good, leave one in the x16 slot for the course of all additional testing.

3. If everything works to this point try adding a second graphics card. Use one of the riser cables and try both of the PCI-Express x1 slots. [Using both PCI-Express slots confirms if the riser cable is functioning, assuming the card has been verified good (step 1)] THEN, try the other riser cable and try both of the PCI Express x1 Slots. [Checking the (other) riser cable for fault.]

4. If the previous step succeeded, try adding in the third graphics card. [Testing that the power supply is capable of supporting all 3 cards, assume nothing until proven]
 

CanadaWhite

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Feb 22, 2014
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Hi, thanks for your help. I had installed win 8.1 with one graphics cards without any problems before but now I cannot even get it to not freeze in the start up without any graphics cards. I tried it in the slot I used before and the other slots, with the same GPU that used to work but now nothing does. It freezes everytime within 10 seconds of the OS starting.

It keeps saying it is diagnosing the problem due to an improper shut down; but, when it freezes I have no choice but to shut it down. I am thinking that the problem lies within windows 8.1 itself or the brand new motherboard has issues. THis is the same thing that happened before and it wrecked the last SSD probably due to all the testing,formatting and restarting after wiping the installed OS and and re-installing which it would never dol After all that an error kept coming in the shell and stating that the SSD had a problem.

I have tested the power supply, switched the ram. the ssd, the cd drive last time so it has to n win 8.1, the motherboard ot the CPU which its temperature is normal on the board and the BIOS.

What should I try now seeing cant ger win 8.1 to diagnose and fix the problem automatically?

Thx again. CW
 

c3h8

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Aug 8, 2008
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The unfortunate news, is that your best option will be to reload. A fresh-clean install (use only one graphics card, then trouble shoot the three card setup after completing the setup) will offer you the best platform to run from.

Additionally, from your motherboard's bios (UEFI settings) ensure that AHCI is enabled for SATA/HDD. Do this prior to a reload.

Lastly, if this is the Motherboard you have http://www.msi.com/product/mb/Z77AGD65.html#/?div=Basic I highly suggest omitting the riser cables and using the PCI-Express x16 slots natively.
 

CanadaWhite

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Feb 22, 2014
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Not great news as you said. The problem is that I have tried this twice now with the same outcome and after the first clean install the SSD was broken and woulddnt let me re-install or repair the computer. It also wouldn't allow Linux OS to be installed or Win 7.

Is there anything I can do to determine what is wrong with the computer. As I mentioned, I built it according to a spec that I assume many others have also copied and from their comments posted in the spec link, only one person had a similar problem and it was the CPU's non compatibility with the 1866 Mhz Ram Card,

I really think that the same outcome is going to be the case and it will not even allow me to troubleshoot the problem once it freezes even once due to the dsmage it apparently causes or the way it shakes up the system.

Should I return these parts and requiest new ones, different ones or is there even a long term solution to this? I have invested well over 4 grand and it has yet to make me 4 cents. In fact its the opposite and costs me money with each step of the way. LOL

Isnt there a program that will allow me to test the computer. When I try to do a clean install it just freezes while I am trying to do it. Clearly something in the CPU or motherboard is faulty as these are the only two parts i have not either replaces or tested. Correct?

This is probably the worst problem I could have because its near impossible to determine what the problem is. LOL

CW