Can i test a barebone T410 mobo?

[chomwitt]

Greetings to the Thinkpad Community from Thessaly Greece!

I am owner of a T410 but after water spilled on my T410's keyboard from my little daugther my T410 was dead. No powerup signal .
I bought a new motherboard ,a keyboard and a dc-in jack thinking that those parts were the most exposed and having seen that the keyboard connector on the mobo 'corrosed' .

After assembing the new system my laptop powers up (fan spins for less than 1sec) i see the keyboard leds on for the same amount of time and then the cycle repeats.

I tried with many componets disconnected and again the same.

Even the barebone_mobo + keyboard gives the same . Also the same with mobo+kb+cpu , mobo+kb+cpu+ram

My question is :
1) Is there such think as a barebone_mobo test? I mean if the mobo + and keyboard are poweredup by pressing the on button on the keyboard what should i see or hear?
2) What is the least system that such a test would be possible ? (eg : mobo+kb+cpu ?)
3) Do i must connect the speakers assembly to hear any post beeping ? or there is a simple intergrated speaker somewhere on the mobo?
3) When i removed the cpu heatsink i observed that the old paste is also around the 2 metal die covers (i guess cpu + intergrated intel gpu? or cache?) . Is that dangerous ?

Thanks .
ps: one related thread i found is :
http://forum.thinkpads.com/viewtopic.php?t=94118

[RealBlackStuff]

Welcome to the Forum.

Did you perhaps forget to tighten the screw in the CPU-socket?

Clean the CPU with Isopropyl alcohol (91%), available in any pharmacy.
Then apply fresh thermal paste (preferably AS5) as instructed here: http://www.arcticsilver.com/pdf/appmeth ... d_v1.1.pdf
It is mostly sloppy work, if the paste is also on the CPU-body itself, usually not dangerous unless the paste is conductive.

To hear anything from the mobo, you must connect the speakers.
With only bare mobo/CPU+fan/KB/speakers/DC-in/charger but without RAM you should hear the speakers beep 1-3-3-1 when you hit the power button.
If not, then either the CPU or the mobo is bad (assuming the charger is OK).