Gigabyte K8NXP-9 reading SubZero Temps correctly?

[SoF]

Hi there,

I was testing my Prommi yesterday - display shows -34°C but Board was first -3°C and after pumping up Vcore got up to 20°C and so no prime@2600mhz was possible.
so i turned the screws little bit more to have more pressure on the die...well worked a little but i had the feeling there was not enough contact between evap and die. what is the best way to fill a gap off 1-2mm without loosing much cooling power?
i think temperatures are correct because the board is able to handle subzero in bios (seems to be so)
http://www.casextreme.net/pixx/subzerorunning1_kl.jpg

Greetz SoF

[Kunaak]

the temps from your prometeia, to your motherboard will never match up.
they are measuring 2 very different points.

I once used my old K8NS pro under dry ice a few times and it barely showed -20C.
Gigabytes just seem to have weird temp reading for some reason...

[SoF]

it's clear they will never match up - but -3°C to 10°C is strange. and because of the stability issue...1.65V @2.6GHZ shouldn't be a problem for this 3500+ (this was pretested on air!)
i know about temperature reading problems of msi (this is why i sold my k8n neo2) but i thought the gigabyte nf4 boards are able to handle subzero temperatures :(

anyone knows what hotspots are doing (except they're getting hot)? there was some sealstring on the die edges and no full contact on some parts of the die. may this influence the temp sensor and overall temperatures that much?


€: still thinking about using more thermally conductive paste (silicon based) - any suggestions?

[SoF]

Well temps are away in sandra under sub zero...bios shows only a "-" when under ~-5°C.
Because i have too much insulation another time and evap hasn't enough direct pressure on the core. this is what sandra says during prime (i checked this many times - its true! when lowering voltage sandra shows no cpu temperature in windows!)

http://www.casextreme.net/pixx/benches/2700prime_kl.jpg (http://www.casextreme.net/pixx/benches/2700prime.jpg)

[Vincentvega18]

Im pretty sure you should still use tim, preferably somthing like ceramiqe

[SoF]

tim? sorry maybe i heard this in german, but i really can't imagine what "tim" is ^^
hmmmm can go to the building center tomorrow center but have no idea what to look for? anything special? please tell me - this paste sux :(