I have a old t bird plus originally pentium 3 750 mhz 64 mb ram 10 gb hard drive,i wanted to keep it running so i performed upgrades i went to website http://www.4allmemory.com
, they have a function on there website called check my system which automatically scans your computer and provides motherboard name and compatible memory etc. if you get the motherboard name/code you can download manual from the motherboards manufacturers website to check component compatibilty etc. you can also get motherboard name by downloading freeware programs like cpuid or test my hardware or opening the case and looking for motherboard code inside, usually found in center of board above pci slots in bigger than normal text. when upgrading ram you must know the following (1) FREE MEMORY SLOTS ON THE MOTHERBOARD (2) THE MAXIMUM MEMORY THE MOTHERBOARD CAN HANDLE (3) THE MAXIMUM FREQUENCY IN MHZ THE MOTHERBOARD CAN TAKE , NOTE THE FASTER THE BETTER AND THE QUICKER YOUR PC WILL BE (4)THE TYPE OF RAM YOUR MOTHERBOARD TAKES
an example of this would be 2 slots free maximum ram 512mb.running 133 mhz using 168 pin sd ram. check motherboard manual for more info on the motherboard you are using.there are many different types of ram eg sd ram, ddr ram, ddr2 and ddr 3 ram of which are 168 pin, 240 pin etc. dont mix modules try buying two or more identical modules to provent future problems.if your motherboard has a maximum of for example 512 mb ram you should use two 256 mb modules. ANYWAY when i installed two 256mb ram modules in my t bird plus (msi 6178e motherboard)the bios only read 256mb (ALWAYS USE BIOS, OPERATING SYSTEMS CAN BE WRONG) i found out later that there is a jumper ( a connector that joins two pins together on the motherboard ) which disables the second ram slot in my motherboard. it was close to the memory slots and had text indicating its function. remove this jumper ( with power off )and reboot system the second module will work then check the bios for memory installed. your motherboard should read the combination of both slots now.
i changed my t bird plus to 1 ghz processor, 512mb ram ,160 hard drive ,128 mb graphics, installed usb 2 hub,installed ethernet hub. hope this helps