Its an emachines T2958. Not home built. Does that mean I cant Oc??
Unfortunately as the system is manufactured by Emachines the chance of you managing to overclock the system is rather low. There will be no overclocking options in the BIOS for you to use, so your last resort is to attempt to use software overclocking applications. These would allow you to write values to the Phase Lock Loop chip (PLL). The chance of this happening on your system depends on the exact board that you have on your system. If your board is a type of emachines board its unlikely that it will work, but if its an Intel board you may have a chance
Software overclocking applications to attempt to use:
Each of these applications may allow you to change the clock speed of your CPU by adjusting the FrontSide Bus speed. However you will need to either know the PLL chip you have in your system or know the actual name of the motherboard. To find the name of your motherboard download PC Wizard 2005 or Everest Home Edition and they will give you detailed information on your motherboard
To check which PLL chip you have in your motherboard have a read of this article as it should give you some nice information http://cpufsb.de/FSB.HTM
When attempting to overclock your system you will need to enter the information, either the PLL or the name of the motherboard for it to detect which chip you are using. Be warned that if you select the wrong board or an incorrect PLL that your system will most likely crash and it may cause physical damage to the PLL chip. So be very careful, if none of these applications allow you to change the frequency then you may be out of luck. You could try and find another application that can write values to your PLL chip or you could try a custom BIOS (I do not recommend this option). Getting a custom BIOS may allow you to get extra options including overclocking options, however if the BIOS is incorrectly configured then it could write incorrect values to your PLL chip and cause the system to crash and as I said before it could actually cause physical damage to the PLL chip which is obviously not very good.