OK, I've just (2 weeks ago) received my laptop back from local Lenovo service. It was the second time. First, it was send to service mainly due to artifacts occured during graphics cards switching - and due to several BSOD and black-outs (a few times during 8 months, but laptop was in-use very rare, a few days total). Mainboard and LED panel were replaced. After this first maintenence, the overheating problems started. 90 Celsius degrees at CPU, 99C at ATI card - due to HW Monitor. The case was very, very hot. All above during playing an rather old game (Medal of Honor Airborne), as well as during web browsing - or running nothing more than Norton360 daily virus check. All with ATI card. In my opinion - fan worked fine, but it started on in random periods - not at the right time. If fan worked - the temperature quickly run down to about 50-60C. Sometimes fan switched on just right after the system had freezed. Sometimes it started to blow (as hell) at system startup, sometimes it didn't until system hang-up. All that just right after comeback from 3 weeks maintenance at Lenovo's service. So after another two weeks I send my laptop back to service. This second time it took 4 weeks to replace just a heatsink. Here is the current situation: first day after it came from service, my laptop hanged-on 3 times. And in 3 different ways - BSOD, switch off and black screen (with no reaction on anything). All that during TV recordings via Pinnacle's USB tuner/stick. Next week it worked fine, even during several (5?) hour MPG2 to DIVX conversion (with Pinnacle's software). This week - all problems are back. Switch off during MPG2 to DIVX conversion (1hour long). Hang-on with 5 minutes of no-activity (no antivirus, just web browser open) - black screen, no reaction on anything, all keyboard lights on. One difference - this time (after heatsink exchange) temperature seems to be ok, 85C max noticed, 73C max during MPG2 to DIVX Conversion - usually about 60C. Fan works with average speed all the time - no more hurricane blows like before. And I am using internal graphics all the time. No games. I am using cooling pad with two fans, external monitor/keyboard/mouse, Win 7 Home 64bit. i3 330M CPU, 4MB RAM, 320HDD. Laptop came from service with BIOS 71 installed. Any advice? Guarantee period is still on, but after 7 weeks total in service... there are still troubles. And it seems that real troubles started after first service maintenance. The graphics artifacts weren't hurt me so much...
