ALERT!CHIPSET HEAT SINK NOT DETECTED,SYSTEM HALTED!>

See this... http://www.techpowerup.com/forums/threads/alert-chipset-heatsink-not-detected.19674/
and this... http://www.techsupportforum.com/forums/f10/no-heat-sink-detected-528538.html

that means that you need to reset your fan and heat sink and/or replace it.

See this... http://www.techsupportforum.com/forums/f10/no-heat-sink-detected-528538.html

There is a heat-sink that is attached to the video chip on the motherboard. The restraining clap that holds it in place is probably detached.

Sounds like your heatsink which is inside the computer and sits on top of the CPU is bad. There will probably be a fan that sits on top of the heatsink.

Look on ebay and purchase one for your system.
http://www.ebay.com

I found a new one below on ebay for $14.95 (the link is below)

http://www.ebay.com/itm/New-OEM-Dell-Dimension-9100-XPS-420-430-Heatsink-Assembly-XP850-/350520689627?pt=LH_DefaultDomain_0&hash=item519ca943db

Hi scotteg71121...

The alert is caused by a loose chipset heat sink.
Dell has a self test that prevents further damage by halting the system and displaying the message Alert! Chipset heat sink not detected. System Halted.
The solder joint seems to fail from constant tension and heat.
If you find the missing clip inside the computer you can solder it back in place and reattach the chipset heat sink wire hook.
If you can't find the clip you can replace it by bending a thin piece of wire in a half circle.
You can see a picture of where the clip goes on your computer motherboard by following the link below.
Please take time to rate me
http://www.aplusperfect.com/articles/chipset-heatsink-not-detected

Both your CPU and chipset have heatsinks to dissipate the heat they generate.
Over times, the heatsink compound between these components and the heatsinks
may dry up and no longer conducts heat efficiently. Your system on power up,
detects excessive heat from the chipset and if allowed to continue on, will burn
itself up. To protect it, your system shuts itself down.
Open up your case and inspect the chipset. Make sure the fan (if any) is running.
If it is, you may have to remove the heatsink (normally clipped on to the chipset)
and remove the old compound and apply a fresh new layer of heatsink grease.
While you are at it, also replace the heatsink compound of your CPU.

first off your going to ewant to hit f2 or f12 to get into setup and you are going to want to change boot oder to your hard drive. i then would open the comoputer up by taking the side of the case off and checking your cpu. u are going to wanna make sure there is a heatsink or fan securly on your cpu. if not this could over heat and burn your cpu up. heat sinks look like this

Turn the computer off.
Disconnect the AC power.
Open the case.
Check that the heat-sink is securely and tightly connected where it should be.

Repalce your M board