Now, the next question is, can the abysmal Intel on board graphics on the M58's mobo be replaced? There is a vacant PCI slot and a BIOS setting thjat allows its use. However the barrier seems to be the very wimpy 280 watt PSU.
Changing the onboard Intel GPU really can't be done. If you have a slot open then yes you can add a better GPU.
Just make sure your order the correct type. If your wanting to game or use PS etc... then it would be wiser to get a new machine only if your motherboard has PCI. If you can use AGP or PCI-e then its not so bad.
PCI is not going to be much of an improvement and you will kinda waste your money.
IT Specialist and Consultant Lenovo Tablet Evangelist Current Machines: IdeaCentre A300, ThinkPad Tablet, IdeaPad U410, and Yoga 3 Pro Touch