i just can think 1 solution if u guys going to use heatspreader for the rams. Use non-conductive aka mx-1 thermal grease.

It's sure look goods, but, heatspreader are meant for high vdimm one aka bh5 / ch5. Ive been running my bt-d43 253@2-2-1-11 1T 2.9v back while. it didnt get hot ( as hot as need some cooling ).

Just my 2 cents.

Looking to the D43 datasheet, 2.7v is the limit. but, oh well. with 2.7v managed to get around 230-235 onli. n 2.9v 253.... i choose the later, LT warranty summore.