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Been out of it a while, need some OC advice

M

MrPeepers

Junior Member
I want to get a:

1.8A P4
Asus PB533 (want USB 2.0)
512MB PC2700 DDR

Is this a good plan, I am aiming for 2.2-2.4GHz. What are my odds? I want the system to be very stable, hence the 2700 DDR. Is every 478 pin 1.8P4 a 1.8A? Do I have to buy one called 1.8A or is it assumed? I was looking to buy at Googlegear.

I already have a GF4 4400 and a 350W PS. Any advice is welcome, I've read as much as I could, but getting dizzy.
 
Not all 1.8's use the Northwood core, so do look for 'Northwood' and/or '0.13u' and/or '512kb,' all of which would only apply to 1.8A CPUs as opposed to the 1.8.
 
With newer packed cpu's I think 133fsb and 2.4ghz is a good shot...You want 133fsb on the p4b533 mobo to take advantage of that pc2700 ddr....So 1.6a may be more of insurance that you will hit that plateau as well as get a little bit more...maybe pc3000 or pc3200 speeds...

Yes make sure it is a p4 1.8a northwood listed with 512kb of L2 cache....googlegear list it pretty well so there should be no confusion...NOt every p4 1.8 is a northwood or even a socket 478...There was some socket 423 willamette p4's, so make sure it states what I listed...

Get a mobo like the asus that will allow you to lock the agp/pci speeds to keep them in spec...
 
I was going to get the 1.8 over the 1.6 so that I didn't OC as much, hoping got make it easier and more stable. Is that bad logic, does OCing the 1.6 push all the components or just the DDR? I assume the P4 chip itself is the same with different mutipliers.

Thanks for the quick answer, love this place, all the smart people hang here 🙂
 
That logic makes sense!!! however get a mobo with a lock for the agp/pci components and that factor gets limited...There may still be issues with some onboard components such as usb devices. However this has been really hit and miss. I haven't heard of these issues with p4b533 mobos to date...My epox runs 167fsb and all usb devices work fine. I would state that the less onboard devices you use the better for your ocing endeavors.

Good luck....1.6 or 1.8 with a newer packing I am pretty confident you can reach 2.4ghz...
 
Sounds good.

18 x 133 = 2.4 GHz.
Be aware the P4B533-E drops to 1:1 mem ratio @ 133 and above FSB. You will be running DDR266 (PC2100). If you use that board, you are better off @ 132 FSB. That way, you can run 3:4 ratio for DDR354 (PC2800) speed. If you wind up @ a lower overclock, the 3:4 is still a nice perfomance benefit.
 
Just as an example, I've got a 1.6A @ 2.4 on my P4B533-E. 1.625 V, 150FSB, 1:1 ratio, 300 mem bus, Prime95 stable @ 32c normal op temp. And except for the RAID (my hard drives should be here today), I'm using all the bells and lot's of the whistles (tons of usb devices, connected to my network, on-board audio, etc). I'm happy as hell with my setup so far and I haven't even started tweaking yet, all I've done was crank up the fsb as far as it will go with my current bios (haven't updated yet).

Good luck! 🙂

 
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