Quote from: RichBC on August 25, 2015, 11:49:49 AM

Quote from: Lumanet on August 25, 2015, 11:13:11 AM

Hi everyone,

can someone please explain something to me.
If you look at the discussion above we seem to work on R17 but what about R20 ?
So I measured and found out those 2 are the 2 resistors which do run parallel. But when you replace both let's say with 1.8Kohm which should result in the same result like discussed above suddenly with the proper settings :

150 MhZ
0.65 V

it consume suddenly 900Watt of the wall. Anyone any explanation about this?

Thank you

Lumanet

R17 & R20 are not in parallel. R17 goes from the Buck Converter Output voltage to the VFB input. R20 goes from the VFB input to ground. R17 is the one to adjust or change.

Also remember you need to make the same change on the other 7 resistors on the other Buck Converters, then repeat for the second board.

Rich

Got it guys :-)

I just swapped out the R17 resistor and it's partners against 1Kohm 1% SMD resistors and now I am hashing like it should be :

Under 200Watt and over 300 Ghs with the rest of the settings from above :-)

THX all

Lumanet