8760w that restarts by itself

[LUKESK]

Hi I'm going crazy to solve a big trouble that a month ago began with my 8760w that improvvisely restarts like happens after an electrical or power failure. It does it without any logical and without any particular cause or moment that may identify who's guilty for it. Almost always restarting matches with an udible "tac" as could it hears in the old relays. It does it on bios, on  disks, with or without power charger on, that was the first thing I've tryied to change, invane. Seems that with battery only it does it less but there is no logical or cyclicality on frequency time when it happens: maybe nothing happens for many days working several hours per day than suddently it begins to do. I've tryied to change motherboard and power card button but it also have rebooted one time.  I've to change internal power cord (but it appears healty...) andafter  I don't know what I've to do more.

Latest components that could be guilty are cpu (i7-2760qm) , videocard (that's an Nvidia quadro M3000M), ram sodimms (4 x 4gb), 2xSamsung, 1xKingston, 1xNanja but all 2RX8 PC 12800S, with same timings and voltages). Noone of these have benn recently changed and the latest ram bank added dates back at least an year or more ago. But I never heard that troubles with those components may cause electrical shorts or improvisely black outs.  Whatever the electrical cause or the culprit component, there is no continuity in the behavior and the interruption is very rapid as well as the subsequent restart.

What do you suggest to do now? I can test single ram banks but don't have another videocard or cpu that can fit on it. Do you think them could be guilty for these troubles?

Thanks to all

Luca

[LUKESK]

Hi, someone have a suggest? Never heard that a ram bank or cpu or videocard could have electrical troubles like mines?

I really don't know how more to do.

Thanks

Luca

[xBishu]

Hi,

Test your GPU, you should use OCCT, check temperature and wait few minutes. If temperature is ok, and laptop will restart, disable GPU in device manager and check what happen in internal GPU. If laptop won`t restarting in internal GPU, you external GPU is broken. If doesnt help, plug your AC adapter and turn on AIDA and check voltage value.

Regards

xbsh