T4x turning off immediately with LCD plugged in.

[cirthix]

I've got 5 or 6 different t4x laptops. Some t41p, some t42p, some t43p, and various screens to test with. Most are 14" 1400*1050 but I've got a 15" 1024*768 and 2048*1536 as well. With any display plugged into any of the laptops (with different video cables and inverters), the laptop will immediately shut off and not power back on unless both the battery and ac adapter are unplugged. These laptops work perfectly fine with the VGA output, boot up, run 3dmark, memtest, and OCCT without issue. The panels are of various makes from various other laptops, but some are from t4x.

What's going on? I can verify that all of the panels work with my t60p.

Thanks,
Cirthix

[Raceboy]

I am familiar with this problem, I have few FireGL T2 boards that act the same way. And it is caused by loose GPU as after reflowing the board the problem went away.

[cirthix]

I am familiar with this problem, I have few FireGL T2 boards that act the same way. And it is caused by loose GPU as after reflowing the board the problem went away.

This happens on the t43p as well.

[RealBlackStuff]

Get in touch with poshgeordie (Nick) via his website ReflowRepairs (See my signature).
Maybe he is willing to make you a bulk-deal.