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#1
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Pentium 4 processor 533 FSB on motherboard 400 FSB?
Hi,
I just got an intel pentium 4 processor 2.4 Ghz 533 MHz FSB, but my motherboard supports up to 400 MHz FSB. does anyone of you know if I can plug it considering a downgrading of FSB to 400 MHz in the processor, or just the system crashed? Thank you |
#2
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On Thu, 24 Feb 2005 12:22:04 +0100, "elmunyon"
wrote: Hi, I just got an intel pentium 4 processor 2.4 Ghz 533 MHz FSB, but my motherboard supports up to 400 MHz FSB. does anyone of you know if I can plug it considering a downgrading of FSB to 400 MHz in the processor, or just the system crashed? Thank you It should run fine so long as it's set to the correct clock multiplier and FSB manually. auto default setting 18x133fsb=2.394ghz manual settings you need to make 18x100fsb=1.8ghz |
#3
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elmunyon wrote: Hi, I just got an intel pentium 4 processor 2.4 Ghz 533 MHz FSB, but my motherboard supports up to 400 MHz FSB. does anyone of you know if I can plug it considering a downgrading of FSB to 400 MHz in the processor, or just the system crashed? Thank you What chip set do you have? The 533 MHz system runs a 133MHz memory bus that becomes 266MHz Dual Data Rate, that becomes 533MHz Dual Channel Dual Data Rate. Hence a 400MHz FSB Pentium 4 board is rare unless it's very old. |
#4
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On Sat, 26 Feb 2005 20:56:08 GMT, Johannes H Andersen
wrote: elmunyon wrote: Hi, I just got an intel pentium 4 processor 2.4 Ghz 533 MHz FSB, but my motherboard supports up to 400 MHz FSB. does anyone of you know if I can plug it considering a downgrading of FSB to 400 MHz in the processor, or just the system crashed? Thank you What chip set do you have? The 533 MHz system runs a 133MHz memory bus that becomes 266MHz Dual Data Rate, that becomes 533MHz Dual Channel Dual Data Rate. Hence a 400MHz FSB Pentium 4 board is rare unless it's very old. They aren't all that rare! The Pentium 4 first shipped with a 400MT/s bus speed on the 20th of Nov, 2000. The very first 533MT/s bus speed P4 chips didn't ship until May 6, 2002. That's a good year and a half where 400MT/s bus speed boards were all that was out there. Also, I'm not really sure what you're getting on about with that memory bus. The memory bus and processor bus most definitely do not need to be synchronous in the vast majority of P4 chipsets (it's a good idea, but not required). What's more, while one could argue one either side of the argument that a Double Data Rate memory bus running at 133MHz was a "266MHz" bus (I would say 'no', since your clock speed is still 133MHz, it's only your data rate that is doubling and it is not measured in Hz), it's most definitely false to say that dual-channel memory bus double things again. A dual-channel memory bus running at 200MHz is still running at 200MHz. It's twice as wide, but the clock isn't changing. ------------- Tony Hill hilla underscore 20 at yahoo dot ca |
#5
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Hi,
I just got an intel pentium 4 processor 2.4 Ghz 533 MHz FSB, but my motherboard supports up to 400 MHz FSB. does anyone of you know if I can plug it considering a downgrading of FSB to 400 MHz in the processor, or just the system crashed? A 533Mhz (4 x 133) FSB p4 should work on a 400MHz (4 x 100) FSB S748 board, but will by default run at a slower speed since Intel chips are multiplier. If your board supports overclocking the CPU, would could try to raise the FSB in the bios to reach that 4 x 133MHz, just as long if the RAM (either DDR or RDRAM for boards based on the 850) can handle it. |
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