only one of two GTX 1070 cards being detected in new graphics card install

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Stephenish
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2016/10/27 08:24:17 (permalink)
The issue I'm experiencing is that two GTX 1070 cards (with a bridge) are installed on the motherboard, but only one card is being detected.
I've been trying to find a method for manually setting the number of lanes to each card as I suspect that may be the issue's cause.
 
System specs:
Operating SystemWindows 10 Professional (x64) Version 1607 (build 14393.321)
Install Language: English (United States)
System Locale: English (United States)
Installed: 10/7/2016 11:58:17 PM
Servicing Branch: Current Branch (CB)
Boot Mode: BIOS (Secure Boot not supported)
Processor a2.67 gigahertz Intel Core i7 920
64 kilobyte primary memory cache
256 kilobyte secondary memory cache
8192 kilobyte tertiary memory cache
64-bit ready
Multi-core (4 total)
Hyper-threaded (8 total)
Main Circuit Board bBoard: ASUSTeK Computer INC. P6T6 WS REVOLUTION Rev 1.xx
Bus Clock: 133 megahertz
BIOS: American Megatrends Inc. 0905 12/24/2010
Memory Modules c,d12280 Megabytes Usable Installed Memory

Slot 'DIMM0' has 2048 MB
Slot 'DIMM1' has 2048 MB
Slot 'DIMM2' has 2048 MB
Slot 'DIMM3' has 2048 MB
Slot 'DIMM4' has 2048 MB
Slot 'DIMM5' has 2048 MB
ControllersATA Channel 0 [Controller] (3x)
ATA Channel 1 [Controller] (3x)
Standard Dual Channel PCI IDE Controller (3x)
DisplayNVIDIA GeForce GTX 1070 [Display adapter]
CRO 404K [Monitor] (39.7"vis, s/n 3504, June 2015)
 
post edited by Sajin - 2016/10/27 12:01:07





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    ArmeniusLOD
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    Re: only one of two GTX 1070 cards being detected in new graphics card install 2016/10/27 08:37:06 (permalink)
    Do you have the cards installed in the correct slots?  According to the manual you can do slots 1+3, 3+5, or 1+5 for 2-way SLI.  Boot mode will also need to be set to one of the UEFI options.
    #2
    bcavnaugh
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    Re: only one of two GTX 1070 cards being detected in new graphics card install 2016/10/27 08:40:12 (permalink)
    What is the Yellow Mark under Device Manager showing?
    If Error 43 then set your Bios to Legacy Mode for your Graphics and retest (CSM Enabled (Maybe))
     You should Never Post "Serial Numbers"
    Core i7 920  P6T6_WS_Revolution X58 MB Last BIOS version 0905  March 17 2011 PCIe 2.0 Support Only on this MB SATA 3Gb.
    It might be time for a New Motherboard!
     
     True @ x16 3-Way SLI™ in slots 1, 3 and 5 when slots 2 and 4 are not occupied. Yes you only are using 2 Cards.
    What other PCIe Cards do you have installed?
    post edited by bcavnaugh - 2016/10/27 08:56:33

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    #3
    Sajin
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    Re: only one of two GTX 1070 cards being detected in new graphics card install 2016/10/27 12:02:25 (permalink)
    Do both cards work when individually tested?


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    Stephenish
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    Re: only one of two GTX 1070 cards being detected in new graphics card install 2016/10/27 21:22:01 (permalink)
    I found the problem. Though the cards are mounted in slots 1 and 5, slot five has a defective lock-in mechanism. The card won't seat properly. I'm considering moving the second card to slot 3, but I'm seriously concerned about overheating the card. I've experienced issues about that in the past, and have no desire to revisit that vomitous situation. Has anyone ever repaired a slot locking mechanism?
     
    These cards do have two fans, on the other hand. However I am planning to use both cards for full-time folding. I don't want the heat issue causing semiconductor breakdown. Does anyone have experience with folding on two gtx 1070s in adjacent slots?
     
    The rig is housed in a CoolerMaster HAF tower.
     
    To complicate matters further I only have the bridge device for three-way or two-way SLi across a wider distance. Would this bridge work for slot 1 & 3 configuration?
    post edited by Stephenish - 2016/10/27 21:38:15





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    Sajin
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    Re: only one of two GTX 1070 cards being detected in new graphics card install 2016/10/27 21:52:37 (permalink)
    3-way sli bridge should work fine. Time to get some blower style coolers for your cards.


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