*** Official Clevo N850EJ1/Sager NP5856 Owner's Lounge ***

Owners Lounge for the NP5856/N850EJ1

 

Anyone know where I can download a service manual for the NP850EJ1 or NP5856 ?

 

Hi! could you test your system with aida64 extreme (stability test cpu+gpu) for 30 minutes?

 

Grabbed one of these second hand at a good price for my partner, who has a tendency to ruin laptops.

Half an hour of work took the stock cpu heatsink performance on the 7zip benchmark from

Idle 55C
30W average package power (short lived 70W max - temperature based power throttling), 94C max

To

Idle 35-40C
70W maximum & 70W average package power, 73C max, constant 4.1ghz turbo.
(For at least 5min despite PL1 showing 45W. Not respecting turbo timer?)
VRMs were getting very hot to the touch though, I will slap on a thick thermal pad to contact the bottom case just to be sure.

7zip isn't the heaviest benchmark but it was more than enough to throttle this cpu on its stock paste job!

Work:
Repaste with liquid metal (with very thin foam dam and liquid electrical tape on the CPU surface for protection)
Bending CPU heatsink tripod for greater pressure (bend the arms upwards away from the motherboard so when the heatsink is flat on the chip, the arms with the holes are floating between 1-2mm above)
Removing the bit of foam pushing the CPU radiator upwards, and moving it just a few mm further away from the fan on top of a bar code sticker in an angled crevice, still under the rad, but applying much less force to it which would affect the heatsink mount over the CPU on the side that has only the single screw...

I haven't even installed Throttlestop and tested for undervolt yet either

And I needed to remove a whole bunch of adhesive foam to fit in a 9mm hard drive in the slot.