Hi Brickstin, have you inspected the capacitors around the cpu & by the dimm slots. Are any of them bulging at the top or do they appear to be oozing electro from the base. I have been replacing faulty / bad capacitors for some time & it is surprising the unusual faults they cause. A good site / forum to check out is BADCAPS. net. Hope this may be of interest.
Some of the caps behind the processor seemed a little unflat.. Like the surfaces of the caps are flated. and its the new ones that are like NHOC or whatever its called.. the hazard compliance thing that restrics the use of hazardest chemicals and such..
anyways.. they werent entirely flat like when I first saw them.. but they hardly are raised at all.. I think those caps may still be bad considering.. I forgot to remove the down draft cover on the heatsink.. this is a horizontal heat sink and it blows the heat towards the back of the case. It's not one of those vertical fan blow downers that push cool air downwards to the processor that sits on the mobo socket.
There was this fin that was pushing hot air downwards towards the caps.. and I think that raised the *Cs .. much higher then those caps could tolorate... so I think it cooked them over the years... I have removed this fin and the CPU actually cools a lot better now and the mobo at that area isn't super hot anymore.
Its the yellow caps here behind the P4 Socket
Thanks for the info Ima check out that badcaps net site.
P.S : I tested the old board outside of the case.. no hookups just ram and CPU with cooler ect.
Case fan senser went bad thats what.. it wont return the fan sensor signal to fan and cycle through it.
So it's the little sensor chip on the motherboard that went bad.
IF that went bad then it's safe to believe the rest of the board is starting to go bad/ is already bad.
Also the voltage regulator chip that controls the voltage output to the case fan is bad also. With out that thing when connecting a fan to the power source : even tried just a basic non speed sensor fan with no sensor in it, connected it to the Case plug on the mobo, fan just jerked very weakly and didn't even rotate.. The power just died to a measely 2.7 Volts from 12 Volts.
Edited by Brickstin, 23 August 2012 - 01:21 PM.