So here's my latest rig with 5 GPU's and a clean 3680 kh/s (5 x 736 kh/s each).
Setup
- Asus Z87-Pro
- Cooler Master Silent Pro Hybrid 1050W - 80 Gold Plus x 2
- Sapphire R9 280x VaporX 11221-02-40G x 5
- Intel I7 4770
- Corsair Vengeance DDR3-8GB x 2
- Seagate Barracuda 500GB
- Add2PSU
- 30 cm riser cables with molex & capacitor.
Hashpower Screenshot
As I'm connected with logmein, GPU 3 reports 707 kh/s but when I close remote control session, it'll go up to 736.9 kh/s too.
Rig
Config
--scrypt -g 2 -w 256 --thread-concurrency 8191 --gpu-engine 1058 --gpu-memclock 1500 --gpu-fan 85 -I 13 --gpu-powertune -20 --expiry 1 --scan-time 1 --queue 0 --no-submit-stale VDDC set to (1.106) in Trixx.