T70 won't boot/post

[sona1111]

Hello,

Geez, it's been a while since I posted here. >.>

I still use my T70 from 51nb, I'm not sure if they are in the scene anymore or would communicate. The machine has been working well except the last few days I needed to try multiple times to start it (power led on, nothing from screen, needed to hard power off and power on again 1-3 times). Today, after trying more than 10 times, I can say for sure it will not start. I an wondering if there's any hope for repair or what would be other's first suggestions.

Thanks!!

[ZaZ]

Saying it won't start is sort of a wide path that could be a number of issues. Besides the power light, are you getting other signs of life like hearing the fan when powered on? Usually the first step when you're not getting anything on the screen would be to try an external monitor. If that fails I'd pull everything - memory, drives, WiFi card, battery, and then plug the power in to see if you can get it to beep. If it does beep try putting stuff back to see if you can find the issue. Trying another AC adapter if possible just to rule that out.

[astral]

If the "standard troubleshooting" described by ZaZ doesn't work, it might be worth sending it to a reputable place that does board repair, if that's in your budget. Even though they wouldn't have any documentation on the motherboard, they could still do some limited troubleshooting if they have any documentation on the power regular IC (or ICs) that it uses. That's a fairly common failure point on any laptop motherboard, and a missing power rail could produce the symptoms you're getting. You could also attempt to get into contact with HOPE from 51nb to see if they would be willing to give you the schematics for the T70 motherboard, although I don't know if they would.

[NonesensE]

Have you tried removing charger & battery, pressing power on for 30 seconds (to discharge capacitors) and plugging power back in? Like on regular thinkpads...

Also, check (or replace) your CMOS battery, semi-deleted BIOS settings can also lead to weird symptoms.