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Re: ThinkPad schematics and boardviews #5 by rkawakami ยป Thu 8:10 pm Before somebody else jumps in to correct me, I should also note that Thinkpad schematics can also be freely found if you construct the proper Google search. People have posted the files to their own web sites. Ray Kawakami
Having used a few ThinkPad T,X and keyboard Model M side-by-side, I believe IBM reused electrical/wire design of Model M in ThinkPad products. IBM's Model M is widely regarded as inferior to Model F, one reason being its complete 2-key rollover and very limited 3KRO. Re: ThinkPad 600X - key rollover on arrow keys?
Thinkpads Forum lack of thunderbolt would turn me away from t470p, which is just a Kaby Lake t460p, even the quad core models. subsequent generations have more cores and thunderbolt, with how inexpensively one can hunt down a t490 or l14, if you really want more capability in a 14" laptop the t470p is a dead end.
I have a Thinkpad T490, and recently encountered the following issue. The laptop doesn't start, but when I press the power button, the LEDs light up for about two seconds, the fan starts for two seconds, and then it stops. After another 4-5 seconds, the fan and LED start by themselves, and I hear a single beep.