Bitmain Antminer L3+ Over Clocking to 637 Mh/s

in bitcoin •  2 years ago  (edited)

I was able to OC the Antminer L3+ to 637 Mh/s for 48 hours

Chip temps. The obvious one, as you overclock you will see temps go up so make sure you have good air flow in the room
a big fan drawing cold air from the outside and a fan sending hot air back outside and keep an eye of temps with multiple Antminers running.

OC at your own risk as this will cancel out the warranty and may fry a asic board if it gets to hot

Check out this table bellow. It shows very clearly that these ASIC chips scale very nice across all settings:

ASIC, Mhz Power, W Hash rate, MH/s
384 Mhz 740 W 502 MH/s
400 Mhz 760 W 523 MH/s
425 Mhz 800 W 555 MH/s
444 Mhz 835 W 580 MH/s
450 Mhz 860 W 590 MH/s
462 Mhz 888 W 605 MH/s
475 Mhz 940 W 621 MH/s risky
481 Mhz 1000 W 630 MH/s risky

I set the fan at 100% for all these tests and kept temps below 80c
This is ASIC chip lottery and those results depend on ASIC quality and will therefore differ with each machine

Thx
Steve

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great info. so hows things going now? what's your prefered clock frequency? i just got my first L3+ a week ago and am considering overclocking just a tad :) but worried it wont go good as its my only 1

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