Best stepping for 2.4C for overclocking?
- Thread starter hytek369
- Start date
they are all made at the fab wahtever plant in oregon...
the whole thing with malaysia and costa rica and wherever is all bogus...
these are just places where they are packaged, not fabricated...
so it doesn't matter where it is packaged because they are all made from the same plant...
the whole thing with malaysia and costa rica and wherever is all bogus...
these are just places where they are packaged, not fabricated...
so it doesn't matter where it is packaged because they are all made from the same plant...
that may be somewhat hard but upping the voltage a bit may make ur search easier.
Alotta people get no changes with temps when they up the voltage which is cool
Alotta people get no changes with temps when they up the voltage which is cool
I think it is fab 20 the old D1b plant at Ronler Acres.....
I think he made have meant SL codes...If not I would like to know!!!
I think he made have meant SL codes...If not I would like to know!!!
Those are real and make a bigger difference then whether the chip says costa rica or malaysia...packing plants ppl , not fabs. THEY ARE MAKING NO CHANGES TO THE SILICON....
that's what i thought, but which SL codes are the good ones, particularly at stock voltage.
thanks
thanks
but i haven't heard of a chip NOT being SLXXX before...
oh well...
3.2 at stock voltage is very possible... my 2.4C can do 3.3 @ 1.55 volts which is an increase of .025 volts but then again the abit board undervolts so it's still less than 1.525 which is the stock voltage...
anyway...
let us know how that 2.4B does... there are some magical 2.4B's that are capable of doing even 3.4+ ghz
right thugs?
oh well...
3.2 at stock voltage is very possible... my 2.4C can do 3.3 @ 1.55 volts which is an increase of .025 volts but then again the abit board undervolts so it's still less than 1.525 which is the stock voltage...
anyway...
let us know how that 2.4B does... there are some magical 2.4B's that are capable of doing even 3.4+ ghz
right thugs? hytec369 - I haven't been paying too much attention to overclocking P4's lately, but the Intel doc that lists the S Specs is here.
It sounds like you just need to look for the S Specs that are the D1 stepping level versions. The 2.4C is probably your best bet, but I haven't looked at what your options would be for memory/FSB speeds.
Right now, I have a 3.0 GHz D1 stepping CPU. I kind of wish I had a slower CPU so that I could run the FSB and memory at a faster rate. I guess I don't have too much to complain about, though.
It sounds like you just need to look for the S Specs that are the D1 stepping level versions. The 2.4C is probably your best bet, but I haven't looked at what your options would be for memory/FSB speeds.
Right now, I have a 3.0 GHz D1 stepping CPU. I kind of wish I had a slower CPU so that I could run the FSB and memory at a faster rate. I guess I don't have too much to complain about, though.
solofly
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- May 25, 2003
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Look for a Batch number starting with Q. My 2.4C does 3.5Ghz at stock voltage and SLK900U with 92mm Panaflo M1. (47cfm/28db) This oveclock was achieved on the hottest month of the year, July with ambient temp of 32C. I also have very low case airflow so this chip still has a bit of headroom.
solofly
Banned
- May 25, 2003
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Guys,
I bought this chip locally at memoryexpress.com (if that means anything). The batch number starts with Q and the package date was June/16 made in Malay. The Q is very important as it indicates a good overclocker. Not much else can be said but to look for the Q.
The mobo I use is an Asus P4C800E...
I bought this chip locally at memoryexpress.com (if that means anything). The batch number starts with Q and the package date was June/16 made in Malay. The Q is very important as it indicates a good overclocker. Not much else can be said but to look for the Q.
The mobo I use is an Asus P4C800E...
Northwood die are produced in Oregon, Arizona, and Mass. They are packaged in various overseas assembly plants.
Speed of the die is a function of stepping and varies slightly by fab plant. There are also subtle variances with each plant's process. You can "dial up" the process to get high yield or high speed. Market demand generally dictates where the sweet spot should be. It's a tradeoff; when one goes up, the other goes down.
Trying to cherrypick a unit based on final assembly code is "luck of the draw". Your best bet is to buy the latest date code you can find since the process continues to produce faster die over time. The only problem is that assembly doesn't always draw on the latest die inventory.
If you're lucky, you'll get a unit who's native speed is well over 3Ghz but has been downbinned to serve the lower end desktop market. If you're unlucky you'll get a unit that comfortably meets it's rated speed but not much more. That could come about based on normal process variance producing slow but high yielding material.
Speed of the die is a function of stepping and varies slightly by fab plant. There are also subtle variances with each plant's process. You can "dial up" the process to get high yield or high speed. Market demand generally dictates where the sweet spot should be. It's a tradeoff; when one goes up, the other goes down.
Trying to cherrypick a unit based on final assembly code is "luck of the draw". Your best bet is to buy the latest date code you can find since the process continues to produce faster die over time. The only problem is that assembly doesn't always draw on the latest die inventory.
If you're lucky, you'll get a unit who's native speed is well over 3Ghz but has been downbinned to serve the lower end desktop market. If you're unlucky you'll get a unit that comfortably meets it's rated speed but not much more. That could come about based on normal process variance producing slow but high yielding material.
I have a 2.4C packaged in the Philippines, and it seems to be a fairly good overclocker. I'm running on an ABIT IS7-E. The highest I can go 100% Prime95 stable with default voltage (1.525V) is about 3.05GHz. Bumping up to 1.55V allows for about 3.2, and 1.6V will get me up to 3.3. Anything higher is not Prime stable regardless of voltage, though it will POST up to about 3.40GHz.
Don't be too concerned about getting a 2.4C than can't even do 3GHz with reasonable voltage... I've yet to see a report of that happening. I'd say about the most "unlucky" you could get is 3.0GHz would require 1.60V. On the flip side, if you're quite lucky, you may be looking at 3.6GHz or higher provided you have the proper cooling and board. Good luck!
Don't be too concerned about getting a 2.4C than can't even do 3GHz with reasonable voltage... I've yet to see a report of that happening. I'd say about the most "unlucky" you could get is 3.0GHz would require 1.60V. On the flip side, if you're quite lucky, you may be looking at 3.6GHz or higher provided you have the proper cooling and board. Good luck!
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