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New Intel CPUs 1.6AG. 1.8AG - what "A" means? Northwood with 512K cache!

Ark

Senior member
Mwave just started selling Intel P4s 1.6A, 1.8A CPUs
Look here - it said "NEW"
What "A" means - is this Northwood? All of them are retail packaged.
 


<< 0.13um with 512 MB cache! >>



I don't want to be too picky but that should be 512 kB of cache. 😉 The main effect is the 1.6A and 1.8A are roughly 10% faster (and potential better overclockers) than the 1.6 and the 1.8 for about the same price.
 
It makes no sense to buy 1.6 or 1.8 if same speed northwood available at the same price.
I was going to buy for my son's PC P4-1.6 with MSI 845Ultra-ARU - now it will be 1.6AG!!!
Hope BIOS will support it.
 
Ark, my P4T-E required a BIOS update before I could use the Soft FSB settings in the BIOS with a Northwood processor.

Check the mobo manufacturer's website and see if the latest BIOS includes support for P4A procs.
 
Put together a P4TE system with a 2.0A Ghz Northwood last evening and it hit 2300mhz with stock heatsync fan, haven't tried higher (probably won't), now I'm thinking that for myself, the 1.8A Ghz chip might be an excellent move, it is probably very possible to get 2400mhz out of it with the stock heatsync/fan... or so I'm hoping!

I think with my own P4TE board, it would be possible to run the RDRAM/FSB asynchronously so I can keep it at 400mhz if I need to. I don't think I have PCI Clock locking at 33mhz, but I will look around a little more this evening 😀
 


<< Put together a P4TE system with a 2.0A Ghz Northwood last evening and it hit 2300mhz with stock heatsync fan, haven't tried higher (probably won't), now I'm thinking that for myself, the 1.8A Ghz chip might be an excellent move, it is probably very possible to get 2400mhz out of it with the stock heatsync/fan... or so I'm hoping!

I think with my own P4TE board, it would be possible to run the RDRAM/FSB asynchronously so I can keep it at 400mhz if I need to. I don't think I have PCI Clock locking at 33mhz, but I will look around a little more this evening 😀
>>



Be weary. If you decrease the RAM ratio to 3x from 'auto" or "4x" to hit speeds higher than 2300 with a 2.0, you effectivly lower the FSB dramtically, and you get lower performance.

Note these 3DMark 2001 scores from my machine:

2000 FSB@400 (4X100) -- 8863
2200 FSB@440 (4x110) -- 9266
2300 FSB@460 (4x115) -- 9492

2500 FSB@373 (3x125) -- 9430
 


<< Be weary. If you decrease the RAM ratio to 3x from 'auto" or "4x" to hit speeds higher than 2300 with a 2.0, you effectivly lower the FSB dramtically, and you get lower performance. >>

Yah. What he means is that you won't benefit from the increasing fsb because the RDRAM will still be at PC800. I agree. Keep the ratio at 4x, and if you can't go any higher, than don't.
 
....Sorry about the NOOB question, but I just built my first system a few weeks ago.
Intel P4 1.8GHz socket 478, on an Intel 850MVL board.

Would my board accept a Northwood chip? I bought the parts from PC Club (don't worry, I'll be PM'ing with Amex Blue 🙂) and I *might* be able to exchange the chip for a Northwood one.
That being said, will the Northwood one perform that much better?

Okay, go easy on the flames, I already admitted to beeing a NOOB!! 😀
 
wintel sux.. I am uber l337 maj0r hax0r d00d with AMD/linux
rolleye.gif
 
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