I'm thinking of going six 750ti, will 1000W PS be good enough?
Yeehah won it on ebay
HTPC Barebones - MOBO/RAM/CPU - Asrock H81 PRO BTC/G3220 3GHZ/4GB 1600 DDR3
$75+11.99 shipping
1000W? You will get very low efficiency. 750ti requires around 40W/card. Do not increase power limit in gpu's bios.
If I were you I would replace the MOBO. x1 PCIe slots has performance penalty because ccminer uses off GPU target checking, therefore you will get high PCIe load.
i would not buy any GPU that cant offer the hashpower/watt ratio a 750ti have
go with 6x 750ti and sell ur 280s
a 1000w PSU is nice so u can consider also add some asic to the system later on use the same psu
@reggie0 i use 6x 750ti on that mainboard and have no penalty at all from pcie x1
example DMD groestl mining 7.5 mhash each card x11 2.7 mhash x13 2.1 mhash
I tried it about 5 months ago and there was penalty(~5%) with multiple ccminer instances and around 7% with single ccminer. Maybe ccminer has been improved.