The eMachines T2200 Desktop PC uses an ECS L7VMM2 motherboard,http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=419&CategoryID=1&MenuID=50&LanID=0
Click on Download.
[ Features/ Specification/ Download/ FAQ/ CPU/ Pinout ]
Click on Manual.
[ Driver/ BIOS/ Manual ]
At the bottom to the right of - Download Site,
click on the name of the country nearest yours.
In the small window that comes up on the right, make sure there is a green dot in the small circle, to the left of - Save File.
If not click on the small circle to the left of - Save File.
Now go to the bottom of the window, and click on OK.
Look at the top of the small window to the left. This tells you where the file will download to.
When you see the file name DOUBLE-click on it, and Extract all files. It is a Zip file.
Now DOUBLE-click on the red Adobe PDF icon, next to the extracted files.
Need guidance with this post in a Comment.
A) JP5 jumper is right below the Ram Memory slots.
CPU Frequency Jumper.
(Processor; change internal clock frequency - jumper)
Vertical placement. 3-pin jumper. The TOP pin is number 1 pin.
With the jumper on Pins 1 and 2, the frequency is 100MegaHertz.
With the jumper on Pins 2 and 3, the frequency set is 133MHz.
B) The small 4-pin connector above the CMOS battery is for an internal speaker. (For BIOS Beep Codes)
The small 3-pin jumper that is Horizontally placed above it, is the JP1 jumper.
Clear CMOS Jumper.
The pin all the way to the Right, is the number 1 pin.
With the jumper on Pins 1 and 2, the setting is Normal.
With the jumper on Pins 2 and 3, you are trying to clear cmos settings.
"To clear the CMOS memory, disconnect all the power cables from the motherboard, and then move the jumper cap onto the CLEAR setting for a few seconds."
Unplug the computer from power. Put the jumper cap on pins 2 and 3 for 5 seconds. Remove from Pins 2 and 3, and put back on Pins 1 and 2.
Plug the computer back into power.
WAIT 1 minute, turn the computer on.
I don't see any other jumpers. Post back if I missed one, in a Comment, and/or for additional questions,