CPU upgrade for P4B266

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S

SR

Hi,

Can an Intel P4 2.4 , 533 Mhz bus speed CPU be used in the P4B266
motherboard which is 400mhs fsb?
If so will the performance be the same as a P4 2.4 400mhz cpu?

Many thanks
SSR
 
"SR" <[email protected]> said:
Hi,

Can an Intel P4 2.4 , 533 Mhz bus speed CPU be used in the P4B266
motherboard which is 400mhs fsb?
If so will the performance be the same as a P4 2.4 400mhz cpu?

Many thanks
SSR
Click to expand...

http://www.asus.com.tw/support/cpusupport/cpusupport.aspx

Celeron 1.7 GHz (400 FSB, L2 cache:128KB) ALL 1007.002  
Celeron 1.8 GHz (400 FSB, L2 cache:128KB) ALL 1007.002  
Celeron 2.0 GHz (400 FSB, L2 cache:128KB) ALL 1010  
Celeron 2.1 GHz (400 FSB, L2 cache:128KB) ALL 1010  
Celeron 2.2 GHz (400 FSB, L2 cache:128KB) ALL 1010  
P4-1.4 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-1.5 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-1.6A GHz (Socket478, 400 FSB, L2 cache:512KB) ALL 1002  
P4-1.6 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-1.7 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-1.8A GHz (Socket478, 400 FSB, L2 cache:512KB) ALL 1002  
P4-1.8 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-1.9 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-2A GHz (Socket478, 400 FSB, L2 cache:512KB) ALL 1002  
P4-2 GHz (Socket478, 400 FSB, L2 cache:256KB) ALL ALL  
P4-2.20 GHz (400 FSB, L2 cache:512KB) ALL 1002  

All the processors listed are FSB400. Judging by the cache,
it is possible some of these are Willemette and some are
Northwood.

There is nothing here that looks like Prescott or CeleronD.
Both of those kinds of processors use "90nm" silicon
technology. You want 0.13u or 0.18u silicon technology
(Northwood and Willemette respectively).

There is a 2.2GHz Northwood on this page ($149 OEM, no HSF):

http://www.newegg.com/app/ViewProdu...&maxprice=&mfrcode=1157&DEPA=0&InnerManu=1157

If you want to "live on the wild side", do a search here
on the two terms "P4B266" and "533". People do use FSB533
processors, but remember - no Prescotts or anything with
90nm in the details. These will be Northwood 0.13u processors.
Likely, whatever advert you are looking at, is for a
Prescott. Northwoods are getting hard to find.

http://abxzone.com/forums/search.php
http://abxzone.com/forums/showthread.php?t=49953&highlight=p4b266+533

Another route, is to take a 1.8GHz/FSB400 and overclock to
FSB533. You can look here and see how overclockable they are:

http://www.cpudatabase.com/index.cfm?Action=search

I'm not certain, but if you want FSB533, and the board offers
1:1 as the lowest ratio for RAM, you'll need at least PC2100
rated RAM (or faster).

HTH,
Paul
 
SR said:
Hi,

Can an Intel P4 2.4 , 533 Mhz bus speed CPU be used in the P4B266
motherboard which is 400mhs fsb?
If so will the performance be the same as a P4 2.4 400mhz cpu?
Click to expand...

It´ll work. Pay attention to the CPU:MEM divider. Up to FSB 132 you can
choose a 3:4 ratio. Higher and you should use a workarround ( Google for
it. ). In my experience, the chipset is stable almost up to DDR 400.
 
Thank you Paul and Nfar.

My overclocking knowledge only extends to selecting the higher speed in the
bios for this motherboard - I have a 1.6mhz running at about 2.1.

I am into video editing and I have optimized everyithing I can with the
harddrives (4 harddrives, one for system, one for paging file, the other two
for video source and rendering, each on a separate ide channel only the
system drive sharing with the dvd writer)

I figured the cheapest upgrade would be to throw in a 2.4 which would give
me about 3mhz using the bios method.

But there aren't too many many 2.4 400fsb cpus around anymore so that is why
I was wondering if a 2.4 533 would work. But I guess I have some climbing up
the learning curve to do so thanks for the links to start me off, I better
do my homework.

SSR
 
SSR,
Sounds like you're currently overclocked using a FSB=133 (533 in P4
terms.) Installing a 2.4/533 CPU would net you a 1.8 GHz CPU at FSB=100
(400 in P4 terms) or 2.4 GHz at 533. Your board will be lucky to run the
2.4/533 chip at the rated speed. You will not likely be able to overclock
it at all.

If you really want to keep that MB, definitely try to get a P4/400 part so
you can overclock it using a 533 FSB.

DanO
 
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