My 2nd GPU is ignored by the miner.

[Stefek_K]

Multipoolminer, claymore - they both don't see one of my two 1070Ti cards. Only one is mining.

Rig: old POS. Pentium E2150; GA-945GCMX-S2 Mobo; 2GB DDR2 RAM (possible culprit, I guess).

situation:

    both cards can be seen in device manager (MSI 1070Ti Gaming)
    both cards are detected by GPU-Z
    individually, the cards both work - both in PCIEx16 slot (inserted without riser), and in PCIEx4 slot (with riser).
    however, when both are connected, the only one detected by miner apps such as multipoolminer, claymore is the one that's connected via riser to the x4 port. And that one mines normally. The other one works (i can see the image on the monitor, for instance) but doesn't mine at all. Claymore reports 1 GPU.

Ideas? is it the old mobo, or maybe it's because I only have 2GB RAM? the MoBo's BIOS doesn't offer any options such as 4G coding. can't even flash the bios anymore because the flashing app doesn't work under x64 system.

Oh and btw - Windows 7 x64. Newest drivers (tried reinstalling them with DDU already, didn't work).

Should I try win10?