Have I harmed my mobo if I plugged the Power supply cords...

  • Thread starter Thread starter Desu87
  • Start date Start date
D

Desu87

Hi, I'm trying my very first attempt on building my own pc. I
completely forgot that I needed cpu fan and just plugged everything in
and turned it on. I've probably done it 5 times and i left it on no
longer then 10sec... Have I harm any parts to the mobo or the cpu?
 
Hi, I'm trying my very first attempt on building my own pc. I
completely forgot that I needed cpu fan and just plugged everything in
and turned it on. I've probably done it 5 times and i left it on no
longer then 10sec... Have I harm any parts to the mobo or the cpu?
Click to expand...

As long as you had the heatsink installed over the CPU you should be okay.
Some mainboards won't even powerup if they don't sense a fan connected.

I wouldn't make a habit of it, though.

Jon
 
Hi, I'm trying my very first attempt on building my own pc. I
completely forgot that I needed cpu fan and just plugged everything in
and turned it on. I've probably done it 5 times and i left it on no
longer then 10sec... Have I harm any parts to the mobo or the cpu?
Click to expand...


The heat sink alone (without a fan) should easily have kept your
cpu from frying.
 
The heat sink alone (without a fan) should easily have kept your
cpu from frying.
Click to expand...

Crap found out that I didn't install heatsink also... But then...
nothing in my mobo seem to work so does that mean my mobo shut off
completely to save the cpu?
 
Crap found out that I didn't install heatsink also... But then...
nothing in my mobo seem to work so does that mean my mobo shut off
completely to save the cpu?
Click to expand...


If you smelled something burning or the cpu looks burnt...
the CPU is bad...
However frying a cpu is not likely to do any damage to your motherboard.

If you were lucky...some CPU's will automatically shut down the mobo if they
get too hot...

so , if you did not "smoke" your cpu just put ont he heatsink and fan
and give it another try.
 
Crap found out that I didn't install heatsink also... But then...
nothing in my mobo seem to work so does that mean my mobo shut off
completely to save the cpu?
Click to expand...

Most motherboards cannot shut off fast enough to save a CPU
from a cold turn-on without a heatsink. Even a P4 with it's
own internal shutdown, is likely to be damaged from repeated
heatsinkless turn-on from a cold state. The shutdown
mechanisms depend on a little bit of time for the sensor
circuit to detect the heat change, with the heat spreading
to it, while the damage will occur from the immediate spot
causing the (most) heat instead.

At this point you might still try the parts with a heatsink
on, but if you had never gotten it to work, next would be
trying a different CPU.

If it runs for more than a low number of seconds, damage is
possible, moving towards likely the longer it's on or the
more times you tried to run it. With a heatsink properly
installed, just no fan or the fan isn't plugged in, the
system should be able to run for a few minutes from a
cold-off state, or at least a few dozen seconds from a
prior, hotter state, until the overtemp protection circuitry
present in any semi-modern system had turned it off.

The motherboard is probably fine.
 
Back
Top