M4800 Owner's Thread

Yes, A21 had the "broken" version of the Intel microcode udpate, and A23 has the updated/fixed version. It should be safe to use. Some people are complaining that the microcode fix for Spectre/Meltdown can cause a performance loss in certain CPU-intensive situations. But, it looks like it's going to be pushed out via Windows Update eventually anyway, so, gotta get used to it I guess. I haven't noticed any degradation in my workload (on the 7510 which has taken a similar patch).

Shouldn't do anything different with regards to GPU compatibility.

 

I did not modify BIOS of the laptop. Only it is important to install M2000M which is from Dell and has Dell vBios. If the card is not from Dell you may try flash card's vBios with Dell one (however I am not sure about it). So as long as the M2000M or M1200 is from Dell, it should work.

As regards A23 BIOS, I finally flashed it and it works flawlessly so far and with no gpu compatibility issues. No BSODs so far.

 

Very good stuff, thank you!

 

I am using M2000M with the latest BIOS and it is working flawlessly.

 

Anyone else having issue with heat? Im used to desktop temperatures so seeing my CPU getting to 92C in WoW is terrifying. im thinking about cutting the PWM wire on both fans to run them max 24/7 and replace them when they fail. is there any other options? i cleaned the heatsink out and removed the old Thermal Paste (what a mess... looks like dell used the whole tube on the GPU and CPU...) and replaced it with some Arctic MX-4 and still getting into the upper 80's low 90's.

 

92C may seem high but you will not damage your CPU at that temperature. The CPU can sustain temperatures up to around 100 C and will throttle itself to avoid getting that hot. You are in good shape if you are not experiencing (much) throttling.

Seeing high 80's to around 90 in these systems is not unusual under load. I've run my M6700 at max CPU doing video encode jobs for days on end (it sits around 88C) without any problem and I've had it for well over 5 years.

You can use Dell Power Manager to adjust the thermal profile so that the fans kick on more readily. (Though under a sustained load I doubt that it will make much difference in the temperature.)

 

Hi there, those temps are not normal.

An example, I play both deus ex mankind divided and tom raider (the second game) on this laptop. Disabling lightning effects makes it for a very good gaming experience. Yet my temps do not go above 85 degs.

What is probabbly happening in there, and I noted, is that windows is probably stealing some cycles from your CPU for his damned XBOX app, which also records in the background. To disable it, go to the xbox app, select game dvr, go to the option of "disable recording" and you're good to go. This is assuming you have windows 10. My temps improved drastically right after that.

 

You can buy a bigger fan if you can get your hands on the:
AVC BATA0815R5H PN02 that promises 12.5 CFM (Im not sure how this is amount of airflow is possible with 0.3A)
https://www.ebay.com/itm/DELL-Preci...-Big-CPU-Cooling-Fan-DC28000DDV0/272399659332
Or the DELTA KSB0705HC that promises 11.8 CFM
https://www.aliexpress.com/item/Fre...G40N-DC-5V-0-6A-4-wire-4-Pin/32524278051.html
You can buy the delta fan in a kit with the gpu fan that puts out 8 CFM vs 4 in the smaller AVC fan.
Make sure to ask the seller that you actually get what is advertised and not based on the dell part number such as DC28000B2DL which can be three or four models on same part number.
If you decide to cut or remove one cable from the connector you will have to deal with the fan error on every boot.
I did this yesterday on my (new fan that was misswired)..the boot sequence is prolonged quite a bit while the fan revs up and down until it promps an fan error.
I'm suprised the fan worked at all when even the power was misswired..

The temps are not good unless this reflect the cpu and gpu being maxed out in computing something.
I can't imaging that just running or starting wow is that heavy on resources?
That dow corning thermal paste is a mess..I spent an hour cleaning it off a few weeks ago.
I was bathing the heatsinks and cpu in acetone but some of it is still on the cpu around the capacitors on the right side.
Gelid extreme is really the go to non-liquid metal thermal paste to use, its a bit more expensive but pays off.

To find out what is overheating go and download hwinfo https://www.fosshub.com/HWiNFO.html
When you start the program, choose "sensors only" and look at what exactly is overheating.
There is a bunch of sensors to read from.
If your temps are low and fine in idle: you can simulate a load with a stress test in Aida64.
Now while the temps has reached its highest, pick up the computer from the table.
Does the temps drops significally?

My temps as Vect never go over 82c.
And I have 3M 7mm tall square rubber feet under my computer so I have some extra clearence for air.

You might have forgotten to put back one if the thermal pads when assembling the heatsinks?
There is a couple of thin rectangle pads that cover the power delivery on the left of the cpu.

 

I replaced the entire bottom part of the laptop and i redid the thermal paste job and temps are much better now. with a solid 3.9GHz turbo in tomb raider its topping out at 64c with about 40% across all 8 threads. Also is it normal for the GPU (K2100M) to throttle to 405MHz on battery and not be able to get it to run the stock 666MHz or is my battery shot?

 

Mine stays at 667 on battery (high performance).

Spoiler: GPU-Z screenshot