ChrisSchumann
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Best CPU for Asus P4B533?
In a machine I built myself, I have an Asus P4B533 motherboard. It has a 478-pin CPU socket and an Intel 845E chipset.
Specs: http://usa.asus.com/prog/spec.asp?m=P4B533&langs=09
Manual: http://www.asus.com/pub/ASUS/mb/sock478/p4b533/e1148_p4b533.zip
Chipset info: http://www.intel.com/design/chipsets/845E/
- What is the fastest non-HT CPU I can put in this motherboard?
- What is the fastest HT CPU I can put in this motherboard?
- Where should I look for overclocking resources?
- Opine: Would you recommend HT at all, and in this system in particular? (I know the PC2100 memory and disk can be bottlenecks.)
I have researched the issues, but want confirmation from experts who follow CPU issues.
Specs: http://usa.asus.com/prog/spec.asp?m=P4B533&langs=09
Manual: http://www.asus.com/pub/ASUS/mb/sock478/p4b533/e1148_p4b533.zip
Chipset info: http://www.intel.com/design/chipsets/845E/
- What is the fastest non-HT CPU I can put in this motherboard?
- What is the fastest HT CPU I can put in this motherboard?
- Where should I look for overclocking resources?
- Opine: Would you recommend HT at all, and in this system in particular? (I know the PC2100 memory and disk can be bottlenecks.)
I have researched the issues, but want confirmation from experts who follow CPU issues.
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I think PC2700 wasn't available when they rolled out the board, and there's no technical reason why you can't go with faster RAM (my Abit has PC4000 RAM in it).
Ideally, when you overclock, you want to keep the AGP bus at 66 and the PCI bus at 33, regardless of whatever the rest of the system is doing. Asus and Abit generally provide that control in their BIOS, which makes them suitable for overclocking. I run the P4 1.6a with an FSB of 150, but it is spec'ed for 100. The RAM will try to run at whatever speed you set the FSB to: for 100FSB, this is 100 x 4 (quad-pumped) x 4 (32 bits) = PC1600, for 133FSB, this is 133 x 16 = PC2100, for 150FSB, this is 150 x 16 = PC2400, for 166FSB, this is 166 x 16 = PC2700, and for 200FSB, this is 200 x 16 = PC3200. Hopefully, you see why I had to go with PC2700 memory.
You can't change multipliers on cpus these days, except for certain mobile AMDs, so you have to change the FSB. The problem with changing the FSB is that the AGP and PCI buses are usually tied to it as an integer multiple, but that's where the AGP and PCI lock feature comes in. I did not have to change anything in either of my setups except for the FSB.
Ideally, when you overclock, you want to keep the AGP bus at 66 and the PCI bus at 33, regardless of whatever the rest of the system is doing. Asus and Abit generally provide that control in their BIOS, which makes them suitable for overclocking. I run the P4 1.6a with an FSB of 150, but it is spec'ed for 100. The RAM will try to run at whatever speed you set the FSB to: for 100FSB, this is 100 x 4 (quad-pumped) x 4 (32 bits) = PC1600, for 133FSB, this is 133 x 16 = PC2100, for 150FSB, this is 150 x 16 = PC2400, for 166FSB, this is 166 x 16 = PC2700, and for 200FSB, this is 200 x 16 = PC3200. Hopefully, you see why I had to go with PC2700 memory.
You can't change multipliers on cpus these days, except for certain mobile AMDs, so you have to change the FSB. The problem with changing the FSB is that the AGP and PCI buses are usually tied to it as an integer multiple, but that's where the AGP and PCI lock feature comes in. I did not have to change anything in either of my setups except for the FSB.
ASKER
To overclock, do you increase the frequency multiplier? FSB? Did you have to tweak other BIOS settings such as CPU voltage, wait states, etc.?