What is the power to hex8?
From same psu like your hexb's?
Post clock and voltage pls
1.A Chieftec 450W PSU
2.Different - though I had no problems running my BFL Single from the 450W PSU and the HEXBs from the another PSU.
3.And this was my mistake. The technobit site says that "HEX8A1 defaults: --hexminer8-set-diff-to-one 0 --hexminer8-chip-mask 255 --hexminer8-voltage 1000 --hexminer8-options 8:260", but it didn't say that I have to specify these options, that if I do not specify them the miner does not work (for example, I do not have to specify any command line options for the hex-b to work).
1. Chieftec 450W is two rails +12V1 (21 A), +12V2 (18 A), Max +12V 360W, 1x 8Pin PCI-E
http://www.idealo.co.uk/compare/2826454/chieftec-iarena-80plus-450w.htmlYou might struggle to run it on that. My miners were 368W and 408W each at Defaults! Get a larger single rails PSU or try underclocking it.
2-3. The options were blank I copied across the numbers from the (Default #) in the text to the left of the option. Also you need to change Handle USB detect errors as (Default: hexA) to Hex8 option.