[Gllug] [OT] How can I tell if I've just trashed the mobo/CPU

[Chris Bell]

On Thu 08 Sep, Adrian McMenamin wrote:
> 

> 
> Powers up, all the fans spin the power button lights but no beep and no
> output. Pretty clear I've broken off a pin because I put the CPU in with
> the wrong orientation and the pin got stuck in what appears to be a
> smaller hole (the CPU - a Celeron - has no pins at all where that pin
> broke off).
> 
> Put it down to experience I suppose.
> 
   Is it an AT or ATX PSU (single large connector or two similar small
connectors to the M/B)?
   An ATX PSU can be switched on from standby by the main processor, while
some standby power is available for a modem, LAN, keyboard, etc. In fact it
may be the other way round, the main processor may hold the ATX PSU in
standby mode. This is to enable start-on-LAN, etc.
   I have seen a short stub instead of a pin on a CPU, which is why I said
check the plating. A rotated CPU should not plug in far enough to grab a
pin.
   Suspect another fault, such as memory not seated correctly - it sometimes
requires a very hard shove plus some assistance from the locks at each end.
Some people assemble the motherboard and RAM on a solid insulating base,
just some thin sponge padding under the board, before mounting the board
inside the case for fear of cracking the board.
   Take precautions against static, I avoid clothing that could generate
static and earth myself to the metalwork before handling cards, and avoid
touching connectors.

-- 
Chris Bell

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