Pentium 4 2.6ghz 800mhz FSB on an Asus P4B533-E 533mhz motherboard

  • Thread starter Thread starter GiJO
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GiJO

I've got an ASUS P4B533-E motherboard that supports Hyper Threading and is
533mhz FSB based on the Intel i845E chipset. I was wondering if i could get
a Pentium 4 2.6 that has the 800mhz FSB and HyperThreading and if it's
compatible.

Is there anything i have to change so will it work no problems? or do i have
to get a new board?
 
Is there anything i have to change so will it work no problems? or do i have
to get a new board?
Click to expand...

OK...

You said you have this:
"533mhz FSB based on the Intel i845E chipset"

And you want to put an 800mhz FSB chip on it...

Hmmm...

Me thinks you answered your own question.

Get yourself a good new P4P800 or the Deluxe model.
 
I've got an ASUS P4B533-E motherboard that supports Hyper Threading and is
533mhz FSB based on the Intel i845E chipset. I was wondering if i could get
a Pentium 4 2.6 that has the 800mhz FSB and HyperThreading and if it's
compatible.

Is there anything i have to change so will it work no problems? or do i have
to get a new board?
Click to expand...

Good question !
Multiplier is always locked. So the cpu should boot with the default
fsb for the motherboard and such run quite much slower than specified,
until you change the settings in bios.

Fsb800 requires that the motherboard runs fsb200, ram is normally set
at the same, but can also be run asynchroneously slower at 166.

It depends on how much settings the bios has.

I hope you get a competent answer.

To my opinion it depends on how the bios handles dividers and ram.

It depends on which ram you use. Are they capable of 166 (pc2700) or
200 MHz (pc3200) or maybe just 133 MHz (pc2100).

Your bios should offer fsb166 and ram at 4:5 (the same as 133:166).

If you then switch up to 200 MHz for the main fsb, the ram will run
160 Mhz.

Then how is pci divider set. Still 1/5 as for fsb166. Well, then at
fsb200 pci will run 40 MHz. A modern harddisk can stand that.

I search google, but did not find any oc results of that scale with
p4b533-e.

best regards

John
 
Found this:

Posted by: Ralf Hutter

1) Asus P4P800 Deluxe + 2.4C @ 3.0GHz + 2 x 256MB Mushkin Level II
PC3200 @ 200Mhz.

2) Asus P4B533-E + 2.66B @ 3.0GHz + 2 x 512MB Corsair XMS3200c2 @
200MHz.

3) Intel 875PBZ + 2.4C + 2 x 512MB Mushkin Level II PC3200.

......

1) is 20x150=3.0 GHz, cpu:ram, at 3:4 making ram running 200 MHz. MB
fsb is 150 MHz.

So it is possible to run ram at fsb200 on that board.

At fsb150 the pci divider is 1/4. So at fsb150 pci makes 37.5 MHz.

At fsb 166 the pci divider should change to 1/5. It is very rare with
a 1/6 divider for 200 MHz.

Good luck !

best regards

John
 
cool, thanks for the info. I might end up looking at a P4C800-E-Deluxe. But
ideally if i can get away with it for a while with the board i've got then
it might be worth doing.
 
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