Motherboard upgrade advice 1 reply

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Eagle One


50 XP

22nd December 2003

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#1 16 years ago
right... first of all, im sorry to post another thread... but ill stop from now on... anyway, i have a real bad asus p4b motherboard, with a 1.7GHz Intel Pentium 4 processor, with 400FSB and 256KB cache, and its socket 478. Anyway, what i was wondering was that i have my eye on a certain motherboard and it states the following:

Memory slot

  • [color=cyan]Supports four 184-pin DDR DIMM sockets [/color]
  • [color=cyan]Supports dual channel (128-bit wide) memory interface - Each channel supports 2 DIMM sockets [/color]
  • [color=cyan]Supports up to 4GB system memory [/color]
  • [color=cyan]Synchronous operation with processor system bus - PC2100/PC2700/PC3200 (DDR266/DDR333/DDR400) with 800MHz FSB CPU. DDR333 will run at 320MHz memory frequency when used with 800MHz FSB CPU. - Use PC2100/PC2700 (DDR266/DDR333) with 533MHz FSB CPU - Use PC2100 (DDR266) with 400MHz FSB CPU [/color]
  • [color=cyan]Supports non-ECC (x64) DIMM using 128Mb, 256Mb or 512Mb [/color]
  • [color=cyan]Supports unbuffered DIMMs [/color]
anyway, there is one part that worrys me, and its the fact that it says
- Use PC2100 (DDR266) with 400MHz FSB CPU
Well, since i cannot afford a CPU right now, i was thinking of putting my CPU, the 1.7ghz one in for the time being, so i only have to buy some RAM. But i would like to buy DDR400, PC3200 for when i can afford a good processor in the future. But... will it actually work, i know it wont work to its full capabilitys but it will do if i got a good FSB800 CPU when i can afford one.
If you need anymore info just say.
thanks for ur help


50 XP

16th May 2004

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49 Posts

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#2 16 years ago

It'll work. You can put a 400FSB CPU in a 800FSB capable MB. Their fully backwards compatible, same applies to memory. As long as the socket the same, no problem.