Just OC'ed my friends P4 2.8C...

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katcher40401

Junior Member
Apr 2, 2004
15
0
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k thanks!...sorry didn't mean to offend if i did.. i think ima go with the ic7-g and the 3.2 c...if i'm saving 50 bucks i might as well spend 100 more on the processor =)...mebbe 3.0 haven't decided yet...do either of those processors clock as well?
 

katcher40401

Junior Member
Apr 2, 2004
15
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i
Originally posted by: myocardia
He obviously got an M0 stepping.:D Nothing wrong with a 700mhz OC on stock voltage!

i'm sorry i ask too many questions but what exactly is M0 stepping?
 

myocardia

Diamond Member
Jun 21, 2003
9,291
30
91
Okay, I'm just going to answer both in one post. A 2.4C or 2.8C with M0 stepping is a 3.2ghz P4-EE with the level 3 cache disabled, presumably because it had a flaw in it. But they overclock like crazy, since they got the same core as the 3.2EE. Most of the people who bought one of the 2.4's got them to run at 3.6ghz with just a slight voltage bump, and some people are getting 3.5 or even 3.6ghz with the 2.8's at stock voltage.:D Oh, and the 3.0C and the 3.2C both overclock great, with 4.0ghz not being unheard of for the 3.0, and slightly higher with the 3.2's.
 

Duvie

Elite Member
Feb 5, 2001
16,215
0
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Originally posted by: AWhackWhiteBoy
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.


i AM NOT SURE WHAT THE HELL YOU ARE TALKING ABOUT....I figured you were going anti Intel on the slant....

I can tell you from my testing.... My 2.4 does 3.42ghz at stock and 3.5ghz with a slight boost to 1.6vcore....

Here are the results.....


Now remember genius that a 3.0 to 3.5ghz represents a 16.7%% increase in clock speed and the 2.4ghz to 3.5ghz is a 45.8% increase...I think you will see many times it scaled near the actual clock speed increase. In test it did not I can tell you those are not cpu intesive apps like winrar, NAV2003, etc. as the the cpu utilization charts showed.

The P4 scales quite well....I wish I would have ran the barton at 2500+ so I could see it there....However it was so disappointing at 3200+ I didn't see the point....
Testing:

Systems:

P4 2.4@3.5ghz (292fsb) w/ 3:2 for 390ddr cas 2,3,3,8

P4 2.4@3.0ghz (250fsb) w/ 5:4 for 400ddr cas 2,3,3,8

P4 2.4ghz (200fsb) w/ 1:1 for 400ddr cas 2,3,3,8

Barton 2500+@3200+ (11x200) w/ 1:1 for 400ddr cas 2.5,3,3,8 (couldn't get cas 2 stable)


POV-Ray v3.5 Benchmark (2instances running benchmark in 2 halves on P4's)

P4 3.5 = 22:45
P4 3.0 = 26:32 (16.6%)
3200+ = 31:43 (39.4%)
P4 2.4 = 33.44 (48.3%)

Cinebench 2003

P4 3.5 = 420
P4 3.0 = 361 (16.3%)
P4 2.4 = 289 (45.3%)
3200+ = 269 (56.1%)

SuperPi 2mb

P4 3.5 = 1:34
P4 3.0 = 1:48 (14.9%)
3200+ = 1:50 (17.0%)
P4 2.4 = 2:11 (39.3%)

Prime95 v23.7 Benchmark 2048k

P4 3.5 = 57.548
P4 3.0 = 67.011 (16.4%)
P4 2.4 = 83.397 (44.9%)
3200+ = 154.903 (269.2%)

TMPGenc v2.52 HT on (AVI video clip converted to m2v file)

P4 3.5 = 2:08
P4 3.0 = 2:29 (16.4%)
P4 2.4 = 3:05 (44.5%)
3200+ = 3:16 (53.2%)

Besweet Wav to AC3 encoding

P4 3.5 = 3:43
3200+ = 4:19 (16.1%)
P4 3.0 = 4:21 (17.0%)
P4 2.4 = 5:06 (37.2%)

Winrar (768mb of files)

P4 3.5 = 6:09
P4 3.0 = 6:41 (8.7%)
P4 2.4 = 7:35 (23.2%)

Seti@Home Bench WU (i386-winnt-cmdline.exe) (2 instances completing 2 units)

P4 3.5 = 2:59/2 = 1:29.5 per unit
P4 3.0 = 3:26/2 = 1:43 per unit (15.1%)
P4 2.4 = 4:14/2 = 2:07 per unit (42%)
Barton 3200+ = 5:08/2 = 2:34 per unit (72.1%)

(*** 1 instance ***)
P4 3.5 = 2:07/1 = 2:07 per unit
P4 3.0 = 2:27/1 = 2:27 per unit (15.8%)
Barton 3200+ = 2:34/1 = 2:34 per unit (21.3%)

Anybody still question the power of HT????? a 2.4ghz HT can equal a non HT 3.5ghz...phenomenal!!!

UT2003Demo Botmatch (800x600)

P4 3.5 = 82.98
P4 3.0 = 77.42 (7.2%)
P4 2.4 = 67.11 (23.6%)

WMV codec 9.0 (PCmark2004)

P4 3.5 = 62.563fps
P4 3.0 = 54.510fps (14.8%)
3200+ = 46.543fps (34.4%)
P4 2.4 = 44.312fps (41.1%)

Divx 5.10pro Xmpeg 4.5 (PCmark2004)

P4 3.5 = 70.483fps
P4 3.0 = 61.457fps (14.7%)
3200+ = 53.623fps (31.4%)
P4 2.4 = 50.742fps (38.9%)

DVD2AVI v1.77 (make an avs project file from Gone in 60sec DVD and stripping audio ac3 tracks)

P4 3.5 = 5:34
P4 3.0 = 5:53 (5.7%)
P4 2.4 = 6:42 (20.4%)

DVDshrink3.0Beta5 (Gone in 60seconds (full) DVD; 64% compression automatic)

P4 3.5 = 15:10
P4 3.0 = 17:05 (12.6%)
P4 2.4 = 20:30 (35.2%)

Norton AntiVirus 2003 (Scan of 6 critical folders containing 43,580 files)

P4 3.5 = 6:16
P4 3.0 = 6:45 (7.8%)
P4 2.4 = 7:14 (15.4%)

 

katcher40401

Junior Member
Apr 2, 2004
15
0
0
okay last question ...i wanted to thank you once again...do the 2.8c with Mo stepping have specific different model numbers? How can I tell the difference between the two cores ? Okay so that was two questions... =X


never mind i googled it and got the model number SL6Z5

but now here is a question do u spend 200 on the SL6Z5 or the 3.0C?...my rational is that I knnow that any SL6Z5 is going to be a good overclocker while buying a 3.0c is kind of a shot in the dark...any thoughts?
 

JH68

Senior member
Aug 17, 2003
202
0
0
I also have a 2.8c M0 and i was wondering since i still have stock cooling how much i might be able to o/c it?