by Hecxa on Mon Jan 21, 2008 13:33
I have Fujitsu-Siemens a1650g too, and for starters, this is not a laptop for gaming ok
What I have noticed, there might be a little problem with heat transfer from CPU to heatsink with these laptops. Mine started to have overheating problems when I removed the heatsink and replaced the old dried "gum" with normal paste. I just wanted to improve the heat transfer and clean out the dust, because my Amilo begun to run pretty hot even on idle for some reason.
Normally, when power management profile "laptop" is selected, Amilo is running around +47C (at speed 800MHz) and when doing much more CPU intensive work it rises to +80C (at speed 2,4GHz), sometimes +90C above and laptop shuts down.
The real problems with my laptop started, when I removed the original thermal "gum" between heat sink and CPU, and replaced it with normal paste, as I told before. Fan was running at max speed all the time etc. So I soon find out that even if you screw the heat sink four screws back as far as they go, the heatsink doesnt touch well enough the surface of the CPU core... So next step for me was to hack the heat sink mounting a bit.. I think it is originally supposed not to directly touch the core, in case of drop it would harm the core.. not sure about that, but there is also a tiny design fault that prevents heat sink touching evenly the core... didn't find anyone selling this original thick gum... so... I did some modifications and applied some basic thermal compound...
Now my Amilo cools down as it used to and more. But there are at least two other places where this "thermal-gum" is applied. The x200 core top and I suppose one place is the voltage regulator at the spot where power source is.
So, my point is, that when laptop is being "cooked" with heavy use for a period of time (2 years or so), the thermal-gum-compound dries out and looses it's heat conductivity/contact between CPU and heatsink. I have seen similar problems with other brands too. Of course, dust is the main problem at first.
Amilo is running just fine with those old drivers. Only drivers I have updated are Catalyst drivers for x200 (now version 07.12) and Texas Instruments PCIxx21 Integrated FlashMedia drivers (version 2.0.0.7, had some trouble with Kingston 2Gb cards).
Last edited by
Hecxa on Wed Jul 16, 2008 17:36, edited 1 time in total.