You can purchase a 1000 MHz (1GHz) Processor from:swrobbie said:I have a Compaq Presario 5838 desktop (purchased new in 1998). It came with a AMD Athlon K7 500MHz processor. I would like to upgrade the CPU to make it faster. I don't want to buy a new system. I spoke with HP and the mother board will only handle up to 1GHz speed. Would it be best to change the CPU to the AMD 1GHz "Thunderbird" or replace the mother board and faster CPU? I am currently running Win98 but will upgrade to XP in the near future.
Also for your information the motherboard will take and recoginze 256 RAM PC 100 or PC 133. purchase quality RAM from Crucial:
Cruial also has a scanner that you may use to scan your system and let you know what the max is (768). But if you look it up by make and model it will state 384. Iv'e tried and it works and system verifies. I'm running at 640 right now (256, 256, 128).
I have thought about trying 512, but I have not tried, no real reason or need for it.
DMS also has memory that works well and is less expensive:
256MB 168 Pin PC100 32X64-8 CL2 Unregisterd SDRAM DIMM (16 Chip)
Just make sure you use low density chips (16 chips).