Bios switch exactly where is bios switch located in systemax 2004 model and what does it look like?

you should google
2004 ford explorer fuse box diagram

Usually, when you boot a machine, the bottom of the screen briefly displays what function key you need to press to access "setup" (or BIOS). See if this info helps...
http://pcsupport.about.com/od/fixtheproblem/a/biosaccess_pc.htm

in cmos you will find them there

Hiyou do not need to update the bios of your computer (systemax desktop pc ) because the current version of your bios is still up to date. If you are having a problem and you want your computer bios default all you need to do is to remove the cmos battery for 1 minute just to be sure because the standard wait time is only 30 sec. put it back after 1 minute. automatically the bios will be back to default settings

need a specific model # please

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Usually delete, might be f2, to enter the boot order I gauruntee it's f12. If the bios is passworded, you are screwed. Try reseting the bios by unplugging the unit, remove the bios battery for atleast 10 secs, then put it back. If it's still passworded...see above.

Try opening up your computer and removing the CMOS battery. Should be the only battery on your motherboard (the thing everything plugs into) this will usually reset your bios. Some bios also have a jumper that needs to be switched but without knowing your motherboard model I can't be sure.

On most desktops, it will be located on the motherboard, sitting in a slot socket. These batteries look like nickels and sit in the socket with their positive side up. They are usually held in place by a tension spring.

If you have a laptop, then the battery maybe accessible through an access door on the bottom of the case. These batteries can also be a disc type battery sitting in a slot or it can have a special covering with a small cable attached to it, this small plug attaches into a socket. In some cases, the laptop has to be disassembled in order to remove or observe the battery.

your video card is most likely overheating, either you are overclocking the video card or the video card's fan is stuck, jammed, broken ect...