best overclock 'c' series p4

athlonxp · 24th Dec 2005, 11:35 PM

which one is the best? either 2.4c, 2.6c or 2.8c

are the c series base on prescott core?

thanks

zy · 25th Dec 2005, 01:29 AM

C series are northwood ...
E should be prescott

PowerSlide · 25th Dec 2005, 02:42 AM

prescott is real hot..need good cooling

for me..although i dun own one i think 2.4C is great..coz it can really overclock..if u dun overclock get a higher mhz one's...

mathew7 · 25th Dec 2005, 07:00 AM

My personal experience with 2.4C:
I overclocked it to 3G (FSB 200->250) and it works well on an Abit IS7 (Intel 865PE). Of course I had to raise the voltage from 1.525V to 1.575V (the Northwood family si rated for 1.500 - 1.550 V). I also tried it for 266 MHz FSB (~3.2G), but memtest gives me errors (even with memory at 177MHz). But i don't know if it's the processor (probably the cache) or chipset(865). I would go for the chipset since further increasing the processor voltage makes no difference.
The first time I put it to 3G, I ran a test: recompressing a DIVX/MP3 AVI (to DIVX/MP3).
At stock voltage, it froze after 2 minutes.
After raising core voltage to 1.550V (maximum spec), it froze after 7 minutes.
After further raising to 1.575V (next possible step for my MB), it finished recompressing the movie after 2 hours.

But there is one thing you should know:
All processors (all frequencies from one family) are built on the same production line. They are marked I believe after a thermal test (well, it is a test). So a 2.4C is hotter than a 3.0C at the same frequency. After all, I got to 3G, but I raised the voltage over specifications (which directly affects power consumption/heat).

So I don't know how much you can overclock the FSB. But I think you can go to 250MHz on any Intel chipset.
I also think that any Northwood can handle 3.2GHz with proper voltage and cooler.

ZuePhok · 25th Dec 2005, 11:31 AM

prescott is one hot chick!!

zy · 25th Dec 2005, 12:24 PM

i guess 2.4C overclocks better than 2.6C .. but not all processors will overclock the same.. it depends on some luck i guess..

i only manage to push to 235 FSB .. heat issue..

athlonxp · 26th Dec 2005, 12:41 AM

thanks for the reply

so how high can the prescott oc to? around 3.4 possible?

Chai · 26th Dec 2005, 10:42 AM

With good cooling, maybe...

PowerSlide · 27th Dec 2005, 02:24 AM

mine 2.8E can clock to about 3.5..dats 250mhz X 14

but need good cooling..mine temp kept to about 33C idle n 40C load cooled by xp-120 n a 145cfm fan

24th Dec 2005, 11:35 PM	#1 (permalink)
athlonxp Hyperactive Join Date: 21 Feb 2003 Location: Kuching, Sarawak, Malaysia Posts: 4,560 Reputation: 347 Rep Power: 13	best overclock 'c' series p4 which one is the best? either 2.4c, 2.6c or 2.8c are the c series base on prescott core? thanks __________________

25th Dec 2005, 01:29 AM	#2 (permalink)
zy Dead Join Date: 16 Dec 2002 Location: Penang,Malaysia - Buffalo,New York Posts: 12,842 Reputation: 1998 Rep Power: 37	C series are northwood ... E should be prescott __________________ current: P4-3.2\|P4P800-Deluxe\|512x4-DDR\|NV6600 WD2500KS\|WD5000AAKS\|AD-7191A\|1860NX\|Z2300\|MP470 home (malaysia): P4C-2.6@3.1-StockHSF\|AI7\|256x2-BT-D43\|512x2-DT-D43\|A9600XT-VIVO WD1200JB\|2xWD2500KS\|DRU-800A\|DVD-E616P\|LTR-52327S\|152x\|V.S.4121\|iP1500 laptop: M1210\|T7200\|2GBDDR667\|160GB5K160\|GO7400

25th Dec 2005, 11:31 AM	#5 (permalink)
ZuePhok Hold me back! I can't stop posting!!! Join Date: 16 Dec 2002 Location: Floating Island Of Mandango Posts: 8,615 Reputation: 2913 Rep Power: 43	prescott is one hot chick!! __________________ my motto: poison first, think later.

25th Dec 2005, 12:24 PM	#6 (permalink)
zy Dead Join Date: 16 Dec 2002 Location: Penang,Malaysia - Buffalo,New York Posts: 12,842 Reputation: 1998 Rep Power: 37	i guess 2.4C overclocks better than 2.6C .. but not all processors will overclock the same.. it depends on some luck i guess.. i only manage to push to 235 FSB .. heat issue.. __________________ current: P4-3.2\|P4P800-Deluxe\|512x4-DDR\|NV6600 WD2500KS\|WD5000AAKS\|AD-7191A\|1860NX\|Z2300\|MP470 home (malaysia): P4C-2.6@3.1-StockHSF\|AI7\|256x2-BT-D43\|512x2-DT-D43\|A9600XT-VIVO WD1200JB\|2xWD2500KS\|DRU-800A\|DVD-E616P\|LTR-52327S\|152x\|V.S.4121\|iP1500 laptop: M1210\|T7200\|2GBDDR667\|160GB5K160\|GO7400

26th Dec 2005, 12:41 AM	#7 (permalink)
athlonxp Hyperactive Join Date: 21 Feb 2003 Location: Kuching, Sarawak, Malaysia Posts: 4,560 Reputation: 347 Rep Power: 13	thanks for the reply so how high can the prescott oc to? around 3.4 possible? __________________ Last edited by athlonxp : 26th Dec 2005 at 12:53 AM.

25th Dec 2005, 02:42 AM	#3 (permalink)
PowerSlide Super Active Join Date: 28 Aug 2004 Location: Penang, Malaysia Posts: 1,402 Reputation: 871 Rep Power: 14	prescott is real hot..need good cooling for me..although i dun own one i think 2.4C is great..coz it can really overclock..if u dun overclock get a higher mhz one's...

25th Dec 2005, 07:00 AM	#4 (permalink)
mathew7 Newbie Join Date: 25 Dec 2005 Location: Romania, Timisoara Posts: 2 Reputation: 0 Rep Power: 0	My personal experience with 2.4C: I overclocked it to 3G (FSB 200->250) and it works well on an Abit IS7 (Intel 865PE). Of course I had to raise the voltage from 1.525V to 1.575V (the Northwood family si rated for 1.500 - 1.550 V). I also tried it for 266 MHz FSB (~3.2G), but memtest gives me errors (even with memory at 177MHz). But i don't know if it's the processor (probably the cache) or chipset(865). I would go for the chipset since further increasing the processor voltage makes no difference. The first time I put it to 3G, I ran a test: recompressing a DIVX/MP3 AVI (to DIVX/MP3). At stock voltage, it froze after 2 minutes. After raising core voltage to 1.550V (maximum spec), it froze after 7 minutes. After further raising to 1.575V (next possible step for my MB), it finished recompressing the movie after 2 hours. But there is one thing you should know: All processors (all frequencies from one family) are built on the same production line. They are marked I believe after a thermal test (well, it is a test). So a 2.4C is hotter than a 3.0C at the same frequency. After all, I got to 3G, but I raised the voltage over specifications (which directly affects power consumption/heat). So I don't know how much you can overclock the FSB. But I think you can go to 250MHz on any Intel chipset. I also think that any Northwood can handle 3.2GHz with proper voltage and cooler.

26th Dec 2005, 10:42 AM	#8 (permalink)
Chai Administrator Join Date: 6 Oct 2002 Location: Maranello Posts: 26,757 Reputation: 3984 Rep Power: 72	With good cooling, maybe... __________________ Chai (Contributor & Forum Admin) http://www.techarp.com/

27th Dec 2005, 02:24 AM	#9 (permalink)
PowerSlide Super Active Join Date: 28 Aug 2004 Location: Penang, Malaysia Posts: 1,402 Reputation: 871 Rep Power: 14	mine 2.8E can clock to about 3.5..dats 250mhz X 14 but need good cooling..mine temp kept to about 33C idle n 40C load cooled by xp-120 n a 145cfm fan

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