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Technonut

Diamond Member
Mar 19, 2000
4,041
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Originally posted by: pastorjay
Technonut,

That is awesome man! Glad to hear you got the chip and are running sweet! Keep us up to date.

PJ
Click to expand...
Yes, it arrived safe and sound.... :) Your $$ should be along very shortly... I appreciate the deal! So far so good... :)

I really don't expect much more out of the processor, but that damn Kingston HyperX is tempting the hell out of me :p . From past experience, I know that my sticks of XMS 3200 & 3500 will not do much better than the Kingston I am running now. I may try it anyway, who knows? ;)
 
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Toymaker

Member
Jul 9, 2002
192
0
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Looks like the often maligned P4B533 has gotten a reprieve thanks to you guys. If the Prescotts remain true Socket 478, it'll be interesting to see if the P4B533's power circuitry is up to the task.
 
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Technonut

Diamond Member
Mar 19, 2000
4,041
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Just for the helluvit, I dropped the voltage down to 1.38, set the FSB to 167 3:4 ratio, and am sailing along running Prime95 at 2.0GHz. The Sandra memory bench came in @ 3250/3244 @ 2-7-3-3. I think I may set it to 1:1 aggressive timings and see how high this will go between 1.38-1.45V ;)

EDIT: Now @ 2.34GHz/195MHz FSB. RAM timings @ 2-7-2-2. I settled the VCore in @ 1.45v. Sandra Memory bench is 2813/2813. :) Prime95 rolling along. I may just let it go at this for the night. Before I hit the sack I will continue running Prime95 along with UT (original) set as spectator with a heavy map, 999 frag limit, and 16 bots... One of my favorite stability tests. :D

EDIT: The above test passed with flying colors. I'm back to my starting point of 2.7GHz/225MHz FSB. These are nice little processors. :) They would also be very useful to people wanting a cool, quiet rig. (If the mobo supports low VCore settings) I will continue stress testing for the rest of the week @ 2.7GHz and post benchmarks/stability tests in my original post above.
 
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Leo V

Diamond Member
Dec 4, 1999
3,123
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Technonut's results are extremely helpful, but I can't hide my dissappointment. His P4M/1.7 requires 1.70vcore to reach a stable 2.7ghz, and 1.45vcore to reach 2.34ghz. (This seems consistent with the other results.)

This suggests that P4M/1.7ghz is little better for overclocking (as a CPU) than a desktop P4/2.26B or 2.4B. These latter chips already achieve comparable MHz at comparable voltages.

There may be 2 potential advantages to P4M over "regular" P4:

1) The P4M has a much lower multiplier (12x) on desktop boards, allowing insanely high FSB. However, high FSB barely helps because your memory is still single-channel and limited to 400-450mhz. Unless you can run P4M on a dual-DDR GBay board at very high FSB, you don't get much benefit from having 900mhz (QDR) FSB.

2) At the same MHz and voltage, P4M seems to consume roughly 15% less power than its desktop equivalent. (By this I mean, a P4/1.8A versus P4M/1.8, overclocked to any particular speed/Vcore; or P4/2.4B versus P4M/2.4). This could make cooling easier, or allow using a quieter fan.

I don't mean to spoil the party; all the testing has been worthwhile, and P4M does have advantages. However, as of right now, it is not quite the wonder chip we hoped it would be. (For that matter, neither is GBay.. but if it becomes possible to combine the two effectively, the results could be impressive.)
 
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Mikki

Golden Member
Jun 13, 2002
1,488
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Leo V, I agree with your points, though I think you don't give the high fsb enough credit...even on a non DC board like mine it out performs my 1.6a. Not saying that it rocks or anything, just that the high fsb is a pretty big deal in it's own right. If we could crank it on a GB board (which isn't looking good so far), it still has the possibility of becoming a "superchip". The oc's aren't as good, but that's to be expected and that was never the point of this anyway, it's always been about fsb. And we still have possibilities of ddr500, so all is not lost.

At this point I wouldn't recommend it to anyone, unless they just want to play with it or they have some fantastic memory. I don't think these will become the oc'ers chip-of-choice or anything, but they're still impressive, and I'm keeping mine...for now...;)
 
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Leo V

Diamond Member
Dec 4, 1999
3,123
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Yeah, P4M is not without benefits. If I had extra money, I would buy a P4M/2.4 just so I could have a cooler CPU @1.3V :)

What I can't understand is why Intel doesn't properly support P4M on desktop motherboards. Why the weird 12x multiplier and voltages? If P4M uses the same socket as regular P4, didn't Intel plan to make P4M usable on desktop as well?
 
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Mikki

Golden Member
Jun 13, 2002
1,488
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That's a darn good question...if they didn't then why make it the same socket? I guess you could say they wanted to make a mobile chip and wanted to use as much deskstop stuff as possible to save costs, but....
rolleye.gif
Obviously the voltage drop is for the mobile application, and the multiplier drop is due to the Speedstep which desktop chipsets don't support, but if the mobile chips are essentially desktop chips optimized for mobile applications, then why not adjust them for desktops and market them as such?

Ahh, heck, what do I know about Intel's way of thinking? hehe...:p
rolleye.gif
:)
 
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Mikki

Golden Member
Jun 13, 2002
1,488
0
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Hey Technonut, are you ready to input your results into the database yet? :)
 
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Technonut

Diamond Member
Mar 19, 2000
4,041
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Originally posted by: Mikki
Hey Technonut, are you ready to input your results into the database yet? :)
Click to expand...
Sure am... :) I placed the results as I went along in my original reply above. I used DVD2SVCD with TMPGEnc Plus 3 times in a row with 3 different DVDs @ 225MHz FSB. Everything else passed @ 225. ;) I pulled the 1.7M this morning to test a 2.53 C1. :D I was just getting ready to post a thread about it....

Benchmarks = 225fsb
Memtest86 = 225fsb
DVD2SVCD with TMPGEnc Plus = 225fsb
Prime95 = 225fsb
 
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Mikki

Golden Member
Jun 13, 2002
1,488
0
0
Sorry buddy, I didn't know if you were done or not...you're in and thanks for participating! :D

...btw, I dig your sig--BS rules! :cool:
 
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THUGSROOK

Elite Member
Feb 3, 2001
11,847
0
0
hey Mik ~ how about compiling a list of motherboards that work?

youre gonna hafta seach for this info ~ it aint gonna come to you ;)

....ummmm, ill help ya look :D
 
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Mikki

Golden Member
Jun 13, 2002
1,488
0
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yeah, that's on my to-do list, along with updating the water-cooling info, I've been slacking, sorry guy's...:eek::)
 
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Technonut

Diamond Member
Mar 19, 2000
4,041
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So far ASUS and ABIT nose to nose................ ;) Nice job without having to use watercooling THUGS :)
 
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THUGSROOK

Elite Member
Feb 3, 2001
11,847
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it was all in good contact with the core :D

my temps are as good yours (im assuming)....

29*C idle
44*C max P95

...of course youre on an Abit and our temps in no way resemble each other
rolleye.gif


:D
 
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pr497

Junior Member
Jan 19, 2003
22
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Originally posted by: THUGSROOK
hey Mik ~ how about compiling a list of motherboards that work?

youre gonna hafta seach for this info ~ it aint gonna come to you ;)

....ummmm, ill help ya look :D
Click to expand...

you can add P4S333/533 to the list.
i tried a 1.7 P4m on my P4S333 (with 533 BIOS) and it boots into windows. the only bad thing is that when i run benchmarks, the system shuts down. im not too sure of the cause of this but im pretty sure that it has something to do with either my PSU (enermax 350w...kinda skimpy) or my pre-bent motherboard.

my heatsink (avc sunflower) is making contact with the core of the cpu...but its only really sitting on the core...not being pressed on it. and the temps are kinda high too (closing in on 50C when running sandra alone).

i wont be using my P4m until i get a better motherboard (ie. something with a springdale PE chip?).
until then...my old P4 1.8a will have to do.
lemme know if you guys want anymore info about P4m's and P4S333's.
 
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Mikki

Golden Member
Jun 13, 2002
1,488
0
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pr497, sure, post whatever ya got, that'd be cool...and if you want me to add you to the database, just post your info, I can always change/add to it later...:)
 
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THUGSROOK

Elite Member
Feb 3, 2001
11,847
0
0
you can update my scores from my new board....

benchmarks = 225fsb
memtest86 = 225fsb
divx encode = 225fsb
prime95 = 225fsb

nothing runs @ 226fsb :(
 
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