Quote from: jdigcur on Today at 05:11:56 AM

I just recently purchased "3 x GekkoScience COMPAC F with Fan Upgrade + Bitcoin Merch® 7-Port USB Hub - COMBO Up to 1.05+TH/s" from Bitcoin Merch and I am not getting the 1.05+TH/s stated. Instead I am getting at total of 291.4g from all 3 miners (each miner @ around 93.59g). Can anyone tell me why this is? Is it because of the 7-port USB Hub not providing the required power? Here are the commands I am using to start cgminer:

cgminer -O stratum+tcp://us-east.stratum.slushpool.com:3333 -u xxxxx -p xxxxx x --suggest-diff 442 --gekko-serial "GS-100xxxxx,GS-100xxxxx,GS-100xxxxx" --gekko-compacf-detect --gekko-compacf-freq 400 --gekko-start-freq 400 --gekko-mine2 --gekko-tune2 60

Thanks.

Start with only 1 F in your hub. Adjust your command to:

cgminer -O stratum+tcp://us-east.stratum.slushpool.com:3333 -u xxxxx -p xxxxx x --suggest-diff 512 --gekko-compacf-detect --gekko-compacf-freq 500 --gekko-start-freq 400 --gekko-mine2 --gekko-tune2 60

You should get ~ 320 Gh/s with one F inserted.
(Verify cgminer output, not Slushpool stats.)

Then insert another F and see if the 2nd F has a similar rate. With the 3rd F inserted after a while, you should have all three F running with around 320 Gh/s each.

If that's successful, you can adjust the frequency parameter (--gekko-compacf-freq) to a higher setting (i.e. 505, 510 ...)