Just OC'ed my friends P4 2.8C...
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Soulkeeper
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- Nov 23, 2001
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doesn't the P4 not scale very well though(compared to the AMDs i guess)? So all those extra mhz don't yeild the results most people might think?
myocardia
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From what I know, they scale almost as well as a Barton, in terms of higher speed equaling higher performance. Where they definitely don't scale anywhere near as well as any Athlon is in getting a higher overclock by adding more voltage. With any Athlon, it will keep getting faster, the more vcore you give it. The P4's have the NWSD (Northwood Sudden Death) Syndrome to worry about. Although, obviously Nick's friend doesn't have that to worry about.
well i remember awhile back tomshardware OCed some P4EEs to 3.6 and 3.8ghz and put them on a benchmark against all the other processors at the time, and the results were less than thrilling,didn't yeild much of anything above 3.4ghz. a day later i checked back and tomshardware apologized,and claimed there were "errors" in their benchmarking and they had to remove them from the site. it was never spoken of again.
Originally posted by: myocardia
From what I know, they scale almost as well as a Barton, in terms of higher speed equaling higher performance. Where they definitely don't scale anywhere near as well as any Athlon is in getting a higher overclock by adding more voltage. With any Athlon, it will keep getting faster, the more vcore you give it. The P4's have the NWSD (Northwood Sudden Death) Syndrome to worry about. Although, obviously Nick's friend doesn't have that to worry about.
The NWSD was from the orginal A/B versions... The C rev does not need a big voltage increase.. Once you hit your max on default VCore there is not much more available if you increase it. All of the tests I have done show the C rev to scale alot better than the Bartons. A 2.4C is the way to go.
I just got a mobile A64 3000+ and not impressed with the performace. Sure it does good running games but throw a DC client and a few other tasks in the background then try and play a game and it slows way down. On any of my C or Prescott CPU's this does not happen. HT at work I guess.
myocardia
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- Jun 21, 2003
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Hah, if you think the P4C's don't suffer from NWSD, let's see you run yours at 1.85v vcore! They become keychains just as quickly as the A's & B's do. Oh, and I didn't happen to have any hard evidence (including first-hand experience, like you) as to just how well they scaled with clockspeed, but I was pretty sure that their performance was pretty good, that's why I said "they scale almost as well as a Barton", even though I should have said "they scale about the same as a Barton". <---That's actually what I was thinking, I have no idea why my fingers didn't go along with me on that one.Originally posted by: orion7144
Originally posted by: myocardia
From what I know, they scale almost as well as a Barton, in terms of higher speed equaling higher performance. Where they definitely don't scale anywhere near as well as any Athlon is in getting a higher overclock by adding more voltage. With any Athlon, it will keep getting faster, the more vcore you give it. The P4's have the NWSD (Northwood Sudden Death) Syndrome to worry about. Although, obviously Nick's friend doesn't have that to worry about.
The NWSD was from the orginal A/B versions... The C rev does not need a big voltage increase.. Once you hit your max on default VCore there is not much more available if you increase it. All of the tests I have done show the C rev to scale alot better than the Bartons. A 2.4C is the way to go.
I just got a mobile A64 3000+ and not impressed with the performace. Sure it does good running games but throw a DC client and a few other tasks in the background then try and play a game and it slows way down. On any of my C or Prescott CPU's this does not happen. HT at work I guess.
Hey, do you have any P4C's running ~3.5ghz? Maybe you and I (you with the P4, me with the Barton) could test them, since my mobile Barton 2600 does 12x210 Prime95 stable...Originally posted by: myocardia
Hah, if you think the P4C's don't suffer from NWSD, let's see you run yours at 1.85v vcore! They become keychains just as quickly as the A's & B's do. Oh, and I didn't happen to have any hard evidence (including first-hand experience, like you) as to just how well they scaled with clockspeed, but I was pretty sure that their performance was pretty good, that's why I said "they scale almost as well as a Barton", even though I should have said "they scale about the same as a Barton". <---That's actually what I was thinking, I have no idea why my fingers didn't go along with me on that one.Originally posted by: orion7144
Originally posted by: myocardia
From what I know, they scale almost as well as a Barton, in terms of higher speed equaling higher performance. Where they definitely don't scale anywhere near as well as any Athlon is in getting a higher overclock by adding more voltage. With any Athlon, it will keep getting faster, the more vcore you give it. The P4's have the NWSD (Northwood Sudden Death) Syndrome to worry about. Although, obviously Nick's friend doesn't have that to worry about.
The NWSD was from the orginal A/B versions... The C rev does not need a big voltage increase.. Once you hit your max on default VCore there is not much more available if you increase it. All of the tests I have done show the C rev to scale alot better than the Bartons. A 2.4C is the way to go.
I just got a mobile A64 3000+ and not impressed with the performace. Sure it does good running games but throw a DC client and a few other tasks in the background then try and play a game and it slows way down. On any of my C or Prescott CPU's this does not happen. HT at work I guess.
I see you are in Texas! If you are near the DFW area I invite you to bring your box to see for yourself. I have offered this several times before on AT but no one seems to want to bite.. All you need us your box, I have the monitors etc.. I too was an AMD user till I lucked out and got a good deal on a 2.4C last year. Since then I have "Upgraded" my kids machines and another folding machine. No more "daddy my game is running slow" since I run F@H on all my box's.
edit I see you are going to the Dallas OT meet... Maybe we can talk about a test there.
Originally posted by: myocardia
Hah, if you think the P4C's don't suffer from NWSD, let's see you run yours at 1.85v vcore! They become keychains just as quickly as the A's & B's do. Oh, and I didn't happen to have any hard evidence (including first-hand experience, like you) as to just how well they scaled with clockspeed, but I was pretty sure that their performance was pretty good, that's why I said "they scale almost as well as a Barton", even though I should have said "they scale about the same as a Barton". <---That's actually what I was thinking, I have no idea why my fingers didn't go along with me on that one.Originally posted by: orion7144
Originally posted by: myocardia
From what I know, they scale almost as well as a Barton, in terms of higher speed equaling higher performance. Where they definitely don't scale anywhere near as well as any Athlon is in getting a higher overclock by adding more voltage. With any Athlon, it will keep getting faster, the more vcore you give it. The P4's have the NWSD (Northwood Sudden Death) Syndrome to worry about. Although, obviously Nick's friend doesn't have that to worry about.
The NWSD was from the orginal A/B versions... The C rev does not need a big voltage increase.. Once you hit your max on default VCore there is not much more available if you increase it. All of the tests I have done show the C rev to scale alot better than the Bartons. A 2.4C is the way to go.
I just got a mobile A64 3000+ and not impressed with the performace. Sure it does good running games but throw a DC client and a few other tasks in the background then try and play a game and it slows way down. On any of my C or Prescott CPU's this does not happen. HT at work I guess.
I see you are in Texas! If you are near the DFW area I invite you to bring your box to see for yourself. I have offered this several times before on AT but no one seems to want to bite.. All you need us your box, I have the monitors etc.. I too was an AMD user till I lucked out and got a good deal on a 2.4C last year. Since then I have "Upgraded" my kids machines and another folding machine. No more "daddy my game is running slow" since I run F@H on all my box's.
Originally posted by: myocardia
Hah, if you think the P4C's don't suffer from NWSD, let's see you run yours at 1.85v vcore! They become keychains just as quickly as the A's & B's do. Oh, and I didn't happen to have any hard evidence (including first-hand experience, like you) as to just how well they scaled with clockspeed, but I was pretty sure that their performance was pretty good, that's why I said "they scale almost as well as a Barton", even though I should have said "they scale about the same as a Barton". <---That's actually what I was thinking, I have no idea why my fingers didn't go along with me on that one.Originally posted by: orion7144
Originally posted by: myocardia
From what I know, they scale almost as well as a Barton, in terms of higher speed equaling higher performance. Where they definitely don't scale anywhere near as well as any Athlon is in getting a higher overclock by adding more voltage. With any Athlon, it will keep getting faster, the more vcore you give it. The P4's have the NWSD (Northwood Sudden Death) Syndrome to worry about. Although, obviously Nick's friend doesn't have that to worry about.
The NWSD was from the orginal A/B versions... The C rev does not need a big voltage increase.. Once you hit your max on default VCore there is not much more available if you increase it. All of the tests I have done show the C rev to scale alot better than the Bartons. A 2.4C is the way to go.
I just got a mobile A64 3000+ and not impressed with the performace. Sure it does good running games but throw a DC client and a few other tasks in the background then try and play a game and it slows way down. On any of my C or Prescott CPU's this does not happen. HT at work I guess.
DP dam laptops (still learning how to type on one.
Nice OC, I have mine up to 3.6 with 1.55V. Not stock cooling, but I think It would still run with the stock HSF. Has scaled pretty well in benchmarks run from 200, 210, 220, 230, 240, 250 and final 257MHz FSB. I could probably go for a bit more, but I am pretty happy with a 3.6GHz cpu that only cost $185.
I look at some of the voltages people are using (1.6 and above) and I wonder what my chip can actually do if I gave it a little more juice. I have a 2.6C running at 3.3 right now on stock voltage. I wonder if this thing can hit the magic 3.5ghz.
i've tried running a 2.4C M0 at 1.85 volts before...
didn't die
i ran it at that speed for a few hours...
haven't heard too much of about SNWDS with all the C processors...
at xtreme, i've actually read posts showing that these M0 "c" chips like high voltages!!!
then again i think it may have been with phase change cooling though hehehe...
didn't die
i ran it at that speed for a few hours...
haven't heard too much of about SNWDS with all the C processors...
at xtreme, i've actually read posts showing that these M0 "c" chips like high voltages!!!
then again i think it may have been with phase change cooling though hehehe...
myocardia
Diamond Member
- Jun 21, 2003
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Shimmi, I think they make you send them an e-mail of your Prommy receipt before they even let you sign up at xtremesystems, don't they?Originally posted by: Shimmishim
i've tried running a 2.4C M0 at 1.85 volts before...
didn't die
i ran it at that speed for a few hours...
haven't heard too much of about SNWDS with all the C processors...
at xtreme, i've actually read posts showing that these M0 "c" chips like high voltages!!!
then again i think it may have been with phase change cooling though hehehe...
i'm sorry if i am dong this wrong but this is my first time here...
well i am interested in building a system with a p4c for video editing with the intention of overclocking it...
i was looking into the 3.o0c with the ic7-g ... i was wondering if u could tell us your settings so i might be able to use it as a template for my oc
I am not quite set on the mobo or processor yet but i have most of the other componnents ...430W antec true power....plextor px708a-dvd-rw
audigy 2 zs platinum, radeon 9800 xt, i even got a watercooling case-kooolance -pc2... i would like to use the caviars i have in my present computer on my sytem but i wasn't sure how i could optimize my setup and if there were certain boards that have a better transfer speed for my hdd because i am not using serial ata. Any ideas?... i was also looking at the p4c800-e deluxe becuase it seems to be more user friendly for first time oc'ers. any help u guys can give would be much appreciated
well i am interested in building a system with a p4c for video editing with the intention of overclocking it...
i was looking into the 3.o0c with the ic7-g ... i was wondering if u could tell us your settings so i might be able to use it as a template for my oc
I am not quite set on the mobo or processor yet but i have most of the other componnents ...430W antec true power....plextor px708a-dvd-rw
audigy 2 zs platinum, radeon 9800 xt, i even got a watercooling case-kooolance -pc2... i would like to use the caviars i have in my present computer on my sytem but i wasn't sure how i could optimize my setup and if there were certain boards that have a better transfer speed for my hdd because i am not using serial ata. Any ideas?... i was also looking at the p4c800-e deluxe becuase it seems to be more user friendly for first time oc'ers. any help u guys can give would be much appreciated
myocardia
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- Jun 21, 2003
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Katcher, welcome to anandtech! Now, I hope that this system is going to be a gaming and video editing/encoding system, because if it isn't, you paid WAY too much for the video card. Also, you aren't going to get a very high stable overclock with the TruePower 430. Antecs are awesome for Athlons, because they supply large amounts of 5v, but a psu's 12v output is what determines how high a P4 will overclock, and how stable it will be. This is really the best psu for overclocking P4's, though a higher output Antec TruePower will work also: link. And if zipzoomfly still has the M0 stepping 2.8C's that would be a very nice one to get. Oh, here's the link to zipzoomfly: link. And as for motherboards, you really can't beat either the Abit IC7-G or the IC7-Max 3. The Asus's don't overclock as well without modifying the board.
first off thanks for the help...just a few questions...should i look to another ps other then their 550?...cost is a bit of an issue as well...the radeon 9800xt was paid for by work... they are not paying for my rebuild tho.... i was looking at the asus board also because of the durability of the board...we have used one at work and we rip apart the computer daily for multiple reasons i am kind of worried about the durability of the board...i want to keep this system for at least a year also so should i consider not overclocking it so much or getting a 3.2 instead?
sorry i forgot to click on the link ...i got the psu...just still confused on board and cpu...i know its more my indecisiveness more then anything else but i feel a little overwhelmed when i read all the reviews for the ic7-g and the pc4800-e
myocardia
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I never said that Asus doesn't make good, long-lasting boards! Man, I had my K7M for way too long, but I liked it alot. It's just that you have to void your warranty on the P4C800-E to be able to get anywhere near the same overclock on them as you can get with an IC7-G, because the Asus's have a passive northbridge heatsink, which works fine for a 200mhz fsb, but won't get you even halfway to 300, like the IC7's can do with no modifications at all. If you don't mind spending nearly $200 for a board that won't have a warranty as soon as you start trying to overclock, then get the P4C800-E. But if getting a board for less money that will overclock higher with no modifications and has the same awesome build quality is okay with you, then get the IC7-G, like I would.
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