My old laptop is used mainly for browsing duty, little bit of typing, scanning and printing jobs, my nephew played with it and as usual, kids have lots of curiosity, he played around with SetFSB app. The BSOD appeared and the usual cycle of BSOD then auto restart upon every reboot. The os is old, WinXP, and I remembered the last time I applied thermal paste on the CPU was 7 years ago, 4 years after purchase, yeah it's ancient, from back 2007. So, I took the chance while fixing the BSOD, might as well apply new thermal paste as the CPU temp start to rise 5 degree celcius above average-peaking at 60-62 degrees on hot day.
I opened the already brittle plastic case carefully, cleaned up both sides of the rather large onboard speaker box ( the Altec Lansing speaker is top notch on this one - for a 15 inch laptop ), the mainboard, heatsink, and fan from dust. Removed the old thermal paste, which surprisingly not dried yet after 7 years of heavy use ( the laptop never turned off except for cleaning the fan exhaust port on the bottom of the case every 6 months or so ) Last time I checked the HDD power on time, over 65000 hours
that's non stop running for over 7 years
I applied the new thermal paste after making sure the surface on both the heatsink and the CPU are clean from dust and debris. During disassembly, I cleared the CMOS as well by removing the battery, the WinXP started smoothly again. Never play around with SetFSB if you don't know what you are doing and risk that comes with it
The Arctic Cooling MX4 really served well, highly recommend it, works nicely all these years on laptop that runs 24/7 and only turned off for a few minutes of cleaning. After reapplied the new paste, the CPU now average around 49-50 degrees on normal use and peaks at 53 degrees, which is quite good after 11 years of abuse.