Big trouble now, pc won't boot....

B

Ben Myers

You don't have to see big sparks or hear loud bangs for electrical current to
flow, for example between the contacts on a DIMM and contacts in a DIMM socket.

.... Ben Myers
 
B

Ben Myers

I neglected to add that CORRECTLY installing PC66 memory in a board that wants
PC100 or PC133 is likely to have one of three results:

1. The computer simply will not boot or power on at all.
2. The motherboard BIOS will display text indicating a serial presence detect
(SPD) error, in other words, identifying the mismatch in memory specifications.
3. A VERY cheaply made motherboard will acccept the memory as is, after which
the computer will then behave in a very erratic manner, displaying BSODs at the
most inopportune moments or halting while booting up.

.... Ben Myers
 
K

kony

I neglected to add that CORRECTLY installing PC66 memory in a board that wants
PC100 or PC133 is likely to have one of three results:

1. The computer simply will not boot or power on at all.
2. The motherboard BIOS will display text indicating a serial presence detect
(SPD) error, in other words, identifying the mismatch in memory specifications.
3. A VERY cheaply made motherboard will acccept the memory as is, after which
the computer will then behave in a very erratic manner, displaying BSODs at the
most inopportune moments or halting while booting up.


Almost every board would "try" to run the memory as is, it has
nothing to do with cheaply made or other quality issues. If
the try comletely failed at the very start, #1 may result. It
is also VERY rare for a "SPD Error" display or halt in a PC
motherboard.
 
D

David Maynard

BigBadger said:
Yes... absolutely. The 5V supply is still live even when 'powered down'.

Well, to be precise, standby 5v remains on; not the main 5V rail.
 
S

spodosaurus

toedipper said:
Are you saying badger that even if the pc is switched of on the front but
the kettle lead in in the back of the power supply that there is still power
flying around the m'board?

YES! And there should be a big warning to that effect in your manual.
It's in the asus TUSL2-M manual. ATX has power to the board even when
the computer is not "on".
 
O

OldFartJAC

Installing PC66 memory will not damage the system board in any way. It will
only run slower. If you install PC100 memory in a board that only supports
PC66 it also won't damage anything but it won't run faster either.
 
E

Ed Needham

Likely you knocked a connector or card loose while changing memory.
*********************
Ed Needham
"to absurdity and beyond!"
ed at homeroaster dot com
*********************
 

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