Dell Precision M6700 Owners Thread

Picked up a spares or repair Latitude E6430 on the bay of the e for not a lot.

M6700 now sporting a 3740QM and 24GB of RAM.

I'll get the Latitude up and running and listed and at least make my money back or even better, profit

 

So I upgraded my M6700 to a I7 3920XM, I use liquid metal (grizzly) as thermal paste, with the fan at 100% I'm getting less than 85°c in prime95 stress test which report a power consumption of 60w.
I pm'ed someone I know that create his own waterblock brand (and take sometime custom request) to know if he could made for me a 3 heatpipe, longer full copper thin (there like 1cm of empty space inside the "fan assembly") heatsink for the M6700 CPU.
I have only an AVC fan, can someone with a DELTA fan confirm me that there also an empty space between the edge and the fan blades ?

 

Do you have the bigger 55W heatsink that came with XM configurations?

 

Yes I already have the 0CRYV5 with two heatpipe but it will not be enough once the 3920XM will be overclocked.
Do you think that a delta fan for the CPU is really a great improvment ? I couldn't find any delta fan for the gpu
I think that I will try to got the cheapest heatsink/base mounting for M6700, remove the already existing heatpipe and heatsink, then order a copper heatsink, then a "custom made" heatpipe and I will try to solder it myself or ask to someone I know.
But for now I need to do some measurement and a 3D model of the thing

 

Delta fan didn’t improve temperatures over the AVC fan for me. (It did for the GPU, but not the CPU.)

 

Even if you remove the base plate ? does it produce more airflow than the avc one ?

and do anyone know the power limit the M6700 can deliver to the mxm slot ?

 

I didn't measure with the AVC fan with the base plate removed. I did enlarge the holes in the base plate and that helped the temperature (slightly) with the Delta fan. See my posts in the M4800 "TDP concerns" thread.
M6700 can run GeForce 980M or Quadro M5000M at full speed but power throttles with the P5000. Somewhere over 100W but not too far over. (P5000 also causes the CPU speed to cap in the 2 GHz range if it runs under full load; doesn't happen with Maxwell cards.)

 

It is the same power limit with a 240W and better power supply ?
Do you know if the mxm card were power directly by the 19v from the power supply or they get an auxiliary voltage like 12v (on standard mxm card without 4 pins or 6 pins connector) ?

Also if someone is interested by shematic for the M6700, I found this one : https://mega.nz/#!sfBxCazB!8hwdKaFu22MWmRiCZxy_Qj8z6oGQwqZSrV7cSEOFJKc
edit1: according to the schematics there is a protection circuit that limit the power up to 130W

 

I can't tell you about voltage but I can tell you that I'm pretty sure that there is no benefit to trying a larger power supply like Alienware 330W. Someone tried it on the M6800 and it offered no improvement. The power limit is coming from the system board somewhere.

 

It's not a big deal, there is the same sort of protection on desktop graphics card were we only need to "shunt mod" a resistor (shunt) on the board in order to have a incorrectly reported power consumption (so "unlimited power"), but if the card receive 12v that mean there is something converting the 19v to 12v from the dc power supply that could not handle the extra load, I need to measure it or dig more into the schematic