FN41 Booting Problems

Hi Guys,

Just put my system together with a 120GB MaxHD and a Samsung DVD ROM
Drive
Athalon 2400 (266) + 512MB

This booted first time and got as far as the XP setup menu page.
Then the keyboard locked, forcing me to re-boot.

The reboot got past the Memory check and then switched off!

Now when I press the On button, the HD light flashes once and the fans
start and stop very quickly. No power light though!

Basically the machine is pretty much dead!

I am not an inexperienced user as I have built serveral PC's in the
past where I had to set CPU jumpers etc.

The shuttle seems like a brilliant little unit to assemble - just that
mine does not seem to work!

Anyone got any ideas before I call my supplier?

 

The way it's shutting down so rapidly suggests CPU / heat issues. Remount
the HSF, clean and reapply thermal paste and check to see the HSF fan is
connected to the proper header.

Frank Hagan

 

Is the red CPU overheat LED on? It's on the same side of the motherboard
as the PSU by the front of the case near the mem slots. This is what my
new SN41G2 was doing for weeks. I had reset the heat pipe assembly
multiple times without success until I went and bought some better thermal
compound (Arctic Silver III) and applied a bit more than the recommended
amount for an AMD (closer to what they recommend for a P4 with heat
spreader). Actually the first time I applied only the recommended AMD
amount and it shut down as quickly as you're reporting. I went back and
reapplied the thicker layer and now the machine runs at around 46C.

Based on my experiences, I suspect there's a "rising rate" check that
causes the CPU overheat shutdown condition in addition to an absolute
temperature check. Every time my machine shut down that I was able to
monitor in BIOS, it was only at 46C in the health monitor. However, the
temperature was raising at a rapid rate and not going back down even when
the fan sped up. I think this rapid rise in temperature was what triggered
the shutdown before the CPU burned itself out.

 

Make sure you removed the plastic film on the heatsink.

Paul