Fastest 478 Pin processor

dnuggett

Diamond Member
Sep 13, 2003
6,703
0
76
Am I correct in thinking that the fastest 478 proc is a P4 2.8 Ghz? I have a board that accepts 478 pin processors and want to make sure I add the fastest proc available. Thanks!
 

themisfit610

Golden Member
Apr 16, 2006
1,352
2
81
IIRC, Northwood was the last 478 core, and it topped out at 3.4 GHz. Good luck finding one. I'm seeing 3.2 GHz CPUs on ebay for ~$40. 3.4's are ~2x as much.

~MiSfit
 

Arkaign

Lifer
Oct 27, 2006
20,736
1,379
126
Originally posted by: dnuggett
Am I correct in thinking that the fastest 478 proc is a P4 2.8 Ghz? I have a board that accepts 478 pin processors and want to make sure I add the fastest proc available. Thanks!

Look up the model # of your mobo. A lot of them are limited to 533Fsb, in which case your best bet is the rare original 3.06Ghz P4 Northwood. Beyond that, a 3.0 or 3.2C is the best bet. Prescott Socket 478s are notoriously hot, and a lot of mobos behave very strangely with them even if they do support them.
 

dnuggett

Diamond Member
Sep 13, 2003
6,703
0
76
Originally posted by: Arkaign
Originally posted by: dnuggett
Am I correct in thinking that the fastest 478 proc is a P4 2.8 Ghz? I have a board that accepts 478 pin processors and want to make sure I add the fastest proc available. Thanks!

Look up the model # of your mobo. A lot of them are limited to 533Fsb, in which case your best bet is the rare original 3.06Ghz P4 Northwood. Beyond that, a 3.0 or 3.2C is the best bet. Prescott Socket 478s are notoriously hot, and a lot of mobos behave very strangely with them even if they do support them.

It's a mobo for an Evo D510u SFF. It originally had a 1.4 Celeron FCPGA-2. They make a 478 board for it, and I'll pick it up tonight. My gut is telling me it's limited to 533. In any event I guess I should recant my original statement. I want to balance speed with high availability. Since it's a SFF I don't want a barn burner. The machine will likely be on 24/7.
 

Arkaign

Lifer
Oct 27, 2006
20,736
1,379
126
Originally posted by: dnuggett
Originally posted by: Arkaign
Originally posted by: dnuggett
Am I correct in thinking that the fastest 478 proc is a P4 2.8 Ghz? I have a board that accepts 478 pin processors and want to make sure I add the fastest proc available. Thanks!

Look up the model # of your mobo. A lot of them are limited to 533Fsb, in which case your best bet is the rare original 3.06Ghz P4 Northwood. Beyond that, a 3.0 or 3.2C is the best bet. Prescott Socket 478s are notoriously hot, and a lot of mobos behave very strangely with them even if they do support them.

It's a mobo for an Evo D510u SFF. It originally had a 1.4 Celeron FCPGA-2. They make a 478 board for it, and I'll pick it up tonight. My gut is telling me it's limited to 533. In any event I guess I should recant my original statement. I want to balance speed with high availability. Since it's a SFF I don't want a barn burner. The machine will likely be on 24/7.

Ah, well for safety and cheapness, get a 2.4b or 2.53b. They are 533fsb northwoods, with 512k l2. The performance difference between them and the 800fsb 'C' series is not that dramatic, and the 'B's will be fast enough for anything they would do anyway. IIRC, a 2.8C was ~5%= to a 3.06B. The 2.4B in particular is easy to find, runs ice cold, and should be cheap as dirt. I watch 720p h264 rips in perfect smoothness on a 2.26B w/6600GT AGP on a spare little box, so they're fast enough.
 

dnuggett

Diamond Member
Sep 13, 2003
6,703
0
76
Ok so I just found out, it's a 400FSB. What's the fastest proc at this FSB? I am assumig it's not one of the heat mongers.
 

myocardia

Diamond Member
Jun 21, 2003
9,291
30
91
Originally posted by: dnuggett
Ok so I just found out, it's a 400FSB. What's the fastest proc at this FSB? I am assumig it's not one of the heat mongers.

This 2.8A is the fastest 400 FSB P4's, but it's fairly expensive. I'd go with this 2.6A, as it's nearly as fast, and costs a whole lot less.