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Thread ID: 50580 2004-10-25 10:48:00 Why doesn't Intel increase clock speeds (like OCing but factory set) george12 (7) Press F1
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284523 2004-10-25 10:48:00 Here's my thinking:

A Celeron D 2.4Ghz (well, mine) humms along at 3.06GHZ with a stock HSF at 39 degrees C.

A Pentium 4 3.0Ghz (well, mine) humms along at 3.0Ghz with a stock HSF at 41 degrees C.

That's interesting!!! So, if you overclock a Celeron D to a 3GHZ P4, it runs as hot as a 3GHZ P4....

So why don't Intel just change the Cel D 2.4 to a 3.06 (like, change the default multiplier or FSB), and it won't even run hot?

Surely they could do this to all CPU's they make? I have had Intel CPU's (mostly Celerons) that run at 27 degrees. This is surely a waste of potential speed.

There is also the fact that (from experience) a P4 FSB 800 2.4GHZ runs at 33 degrees, whereas a 3.0GHZ (same in every other way) runs at 41 degrees.

This is a one to one ratio according to Windows Calculator, so does this mean that the chips are effectively identical?

George
george12 (7)
284524 2004-10-25 10:57:00 > So, if you overclock a Celeron D to a 3GHZ P4

Just a little mistake there, I meant to say:

"if you overclock a Celeron D to 3GHZ"

A Celly D will never be a P4 no matter what speed it is.
george12 (7)
284525 2004-10-25 11:22:00 Also some chips just wont overclock. They are rated at that speed for a reason. Most likely they will overclock but there is the good chance it was actually a higher speced CPU that could not make the grade but could handle the lower speed so they set it at that. If you go and overclock it then there is a good chance it will be unstable even at a normal temperature and you wont know what is causing the problem. Big John (551)
284526 2004-10-25 11:47:00 >A Celeron D 2.4Ghz (well, mine) humms along at 3.06GHZ with a stock HSF at 39 degrees C.<

what board, memory,vid card on that setup george ? Not sceptical just interested since I am having problems getting past 2.8 on my 2.4 cel d
mind you it could be due the the crap memory and mobo its running on.
the highlander (245)
284527 2004-10-25 12:18:00 Because they would only need a small number out of each batch to fail and it would tarnish their name.

If they could run the p4 chip at those numbers across the board then you can garentee they would.

There is also many instances of OC'd chips running cool and still failing,i thought the term was called electromanitisim but google didnt give me any results so i must be mistaken about the term used.
metla (154)
284528 2004-10-25 19:03:00 The term is electromigration, a problem when voltages are lifted even if extreme cooling is used.

The big PC suppliers also want a range of speeds so they can offer different priced computers.
PaulD (232)
284529 2004-10-25 19:27:00 Bugger,and i spent an hour trying to find an article that linked magnetic forces caused by electric current with failure of P4 chips......Lmao. metla (154)
284530 2004-10-25 21:37:00 Don't be silly.
Then we'll get next years model this year.
Jack
JJJJJ (528)
284531 2004-10-25 22:30:00 They also need to have a gap between the P4 and Celeron in terms of speed. We all know that cellery's suck, but your average noob will see a P4 @ 3Ghz and a Cellery @ 3.0GHz and buy the cellery because its cheaper. If they want to sell P4's its in there best interest to keep the cellery slightly slower than the P4 thus making the P4 worth more. Dont expect to see faster Cellery's any time soon, Intel are struggling to scale the P4 higher, expect faster FSB's and more cache first. We wont be seeing a 4.0GHz P4 and I doubt we'll see a 3.8GHz this year.

AMD are suffering from the same problem, because their chips dont benefit from extra cache and fast memory they're struggling to differentiate between the Sempron, Athlon64 and AthlonFX. For example the only difference between the Sempron 3100+ and the Athlon64 2800+ is that the Sempron doesnt have 64bit capabilities. Another example is the new Athlon64 4000+ and the Athlon FX55, the only difference is that the Athlon FX55 has another 512 of lvl2 cache. The 4000+ is literally a rebadged Athlon FX53.

Ive managed to 3.6GHz out of a 2.4GHz Cellery D, what was quite freaky was that it was using a super cheap Albatron mobo, could only get 3.4Ghz out of two DFI lanpartys and one gigabyte board i tryed. One thing i did notice while trying to overclock my cellery was the lack of third party BIOS for intel boards.

PS if anybody knows how to do a vcore volt mod on a Albatron PX865PE Pro let me know
Pete O'Neil (250)
284532 2004-10-26 01:00:00 A nice reply by dansdata to a question under CPU Giblets (www.dansdata.com) partly answers your question Greg S (201)
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