Difference between revisions of "Problem with video related system lockup II"
| Line 9: | Line 9: | ||
this problem is thermal and is caused by the GPU coming off the MB. | this problem is thermal and is caused by the GPU coming off the MB. | ||
| − | == | + | ==Solutions== |
| − | Replace motherboard. | + | * Replace motherboard. |
| − | Reflow the solder on the graphics chip. (remove motherboard, take it to a repair house that can reflow a ball grid array package, reassemble) | + | * Reflow the solder on the graphics chip. (remove motherboard, take it to a repair house that can reflow a ball grid array package, reassemble) |
== See Also== | == See Also== | ||
[[Problem with garbled screen]] | [[Problem with garbled screen]] | ||
Revision as of 13:44, 7 December 2006
Also Thinkpads with the ATI 9600 video chip used in T42 and T42p can cause lock-ups.
This happens after about two years of use.
Symptoms
Screen goes blank, requires hard reboot (power off-on) to get screen display. On boot may give one long, two short beeps POST code. Screen goes blank when laptop flexed, eg adjusting lid angle, squeezing around ultranav trackpad area, twisting, pressing on palmrest. POST code or screen blanking more prevalent after warm-up. Problem gets worse over time. Problem repeatable from first boot (bios) screen with tpad partially disassembled - hdd, ultrabay, extra ram, wifi removed, kb, palm reset removed, but connected.
According to http://www.technotaste.com/blog/thinkpad-t42-ati-radeon-9600-driver-and-the-blue-screen-of-death-bsod/ this problem is thermal and is caused by the GPU coming off the MB.
Solutions
- Replace motherboard.
- Reflow the solder on the graphics chip. (remove motherboard, take it to a repair house that can reflow a ball grid array package, reassemble)
