Angela said:
Does anyone know whether all motherboards are of the same size and whether they should fit all case/box size?
I want to upgrade my Pentium III box so that I can install Windows XP OS. My case is desktop (old RM machine) and the plan is to upgrade it bit by bit to get a good machine and to learn from the upgrade process. Cost is not the criteria at present as the upgrade may take upto 3 months to complete.
Thanks.
There are a number of considerations.
Most PIII systems used ATX or micro-ATX motherboards (as opposed to
the older AT type motherboards) so the new motherboard should be able
to physically fit into the case and line up correctly with the
rear-panel connectors and internal stand-offs.
However the power supply may be a concern, especially if you are
looking at a Pentium 4 class motherboard. These motherboards have an
additional power connector which is not found on the older ATX power
supplies. Motherboards for AMD CPUs (other than the 64 bit) should be
okay with the older power supply, provided it has adequate power
output. A 250 watt power supply probably won't be enough.
So you might want to give serious consideration to adding a new case
to your computer upgrade budget.
Your RAM will also almost certainly not fit into the new motherboard.
Pentium III class systems typically used PC100 or PC133 SDRAM and most
newer motherboards take DDR RAM. SDRAM modules will not fit into DDR
RAM slots, and wouldn't work even if they did fit.
So you are going to have to get a fair bit of the new hardware before
you can get anything to work.
But it could be quite a learning experience. Just remember to double
check regarding compatibility of components before you spend the cash.
Sometimes items can be very hard to return.
Good luck
Ron Martell Duncan B.C. Canada
--
Microsoft MVP
On-Line Help Computer Service
http://onlinehelp.bc.ca
In memory of a dear friend Alex Nichol MVP
http://aumha.org/alex.htm