Hi,
here are the results of a test I made for you to see the behavior of the fan-spaad compared to the temps.
(i only make the test up to ~95°C - i think more is not very healthy)
Tools i used:
- Intel Burn Test 2.5.1 (get hight temps on CPU)
- 3dMark06 (get high temps on GPU)
- HWinfo64 v3.85-1363 (Beta) read and set fan-speed
"Problems":
- I changed the Thermal "Paste" (liquid metal) an added some extra head-spreader inside so i had to cover the fan/cooler under and behind the Laptop to get this temps in short time.
- HWinfo seems to be the only tool to read the Temps - but: it only updates the values every 2-4 sec - so i have to round the measured values.
- I dont know which temps exactly the Bios is looking for to adjust the fan-speed.
- I had my eye on every single "CPU-Core" and the "Cpu-Package" Temp.
The Results:
BIOS A04
Temp (°C) / Fan-Speed (rpm)
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00-50 | 0
50-65 | 3200-3400
65-75 | 4200-5000
75-95 | ~5500
Highest manual speed: 5500-5700 rpm (it varies all the time)
This Bios always seems to kick the fan to a specific speed and than it slows down a little bit - so there was no exact speed for a specific temp. but it always took the highest speed and than slows down. (when it reaches apprx. 65°C it gets up to 5000rpm and then it slows down in apprx. 15sec-steps.) Hope you know what i mean
BIOS A05
Temp (°C) / Fan-Speed (rpm)
-----------------------------
00-50 | 0
50-60 | 3000
60-70 | 3500
70-80 | 4200
80-90 | 4700
90-95 | 5300
Highest manual speed: exact 5700 rpm
I will just repeat that this may not the exact values wich a programmed in the BIOS - but this is what was able to measure.
Hope this helps in the upcoming discusions about "in A05 my fan ist not going down to 0 rpm in Idle" or "in A05 there is no "Jet-Turbine-Mode" anymore".
I hope these are useful information for all of us.
Greetz,
Michael
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Nice work, i've never used a04 so i don't really know how it ran. A01 is still my favorite out of 1, 3, and 5 though.
I can see A05 being easier for those who don't feel like changing anything on their comp. -
How did you change the Fan-Speed?
HWinfo "might be able to", but it never worked stable - after 10-30 min, the automatic-fan-speed-control of the BIOS is taking the command and HWinfo crashes ;-(
If you use it: which version exactly?! -
no such release as a04. Dell only released a01, a03, and a05. Of course you also have the 3rd party updated a01 and a03 for increased voltage for the 555mGT.
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correct - as i received mine, i installed A04 - from the official Dell Homepage.
Where can we finde modded Bios-Versions for the M14x?
Never seen any of them... -
Great benchmarking
(+rep)
So the new bios is indeed decreasing the max fan speed.
Now I wonder how that'd effect max performance and overclocking, or if those 200 missing RPM are only noticable sound wise...
Now I would be highly interested to see some pics of where and how you added the extra head-spreaders?
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Hi,
I just put on some "Ram-Heat-Spreaders" on the CPU and GPU Cooling unit - srry - have no pictures and I don't want to open my m14x again.....
Fan-Speed Comparison A04 vs. A05
Discussion in 'Alienware 14 and M14x' started by Megamilchmann, Aug 27, 2011.