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Got a P4-3.0E with E0 stepping today - a good one?

C

cockeyed

Senior member
My newegg order came today for a P4-3.0E to replace a P4c in my Asus P4P800 mobo; I killed the P4c by accident. I read all about the heat in the E series so I checked right off what I got. It is a P4-3.0E SL7PM - E0 stepping. I read about the C0 & D0 but not about E0's. Doing a google I found THIS article. It looks like I got lucky, the E0 runs cooler and looks like it could do 4ghz+. I don't OC, but I just might be tempted too. I won't get around to try it until later tonight, so I can't give you any temp numbers..

I thought you OC's might be interested..

Retail Box - pack date: 12/14/04
Costa Rica

Got it in - running fine - here are some temps with the stock HSF:
Idle: CPU-40c - Fan-2481 rpm
After 9 holes TW2004: CPU-48c, Fan-2596 rpm
Right now on the internet, the CPU is at 38c, Fan 2500 rpm
 
That's a 478 E0? Those have been around for a while, what people are really looking forward to, is getting their hands on LGA775 E0's.
 
Yes I believe those 775 E0's are t have the 64bit support of the current xeons.....E0 in the 478 is still nothing to shake a stick at and likely could reach those high 3.8-4.0ghz range with the right board, right power supply, right memory and memory settings, etc....
 
Could be a good overclocker indeed...

There are a few online retailers that charge a premium for the E0's. I wouldnt be too surprised if you could get it up to 3.6ghz on stock voltage. That is if your mobo and ram can handle it.

Anyhow, it might be great, or it might be a dud, if you decide to try, post your results.
 
The real golden cpu's are the 5*0J's and the 6**'s with EM64T.
Right now my motherboard is preventing me from overclocking further, but around 252fsb is my max stable clock.
 
Got some OC results for you guys. Used the Asus Jumperfree BIOS OC for 10% & 20%.

Ran at 3.3ghz and 3.6 ghz with no effort at all. Temps were at idle & 9 holes TW2004:
3.3 - Idle-40c, TW2004-51c, fan-2518 - 2556
3.6 - Idle-41c, TW2004-52c, fan-2518-2556

I didn't go any higher (no nerve) but I think it would do more if I tried. I was concerned about everything I heard about heat on these P4E's, but after seeing these results with a stock HSF, I'm not at all concerned.
 
FYI, I now have it running at 3.9ghz without any problem. Idles at 41c and the max I could get it up to was 52c running 3dmark. This is with a stock cooler. I set this with the 30% oc feature in the Asus mobo. I was skeptical when I bought this CPU, but I am very pleased with it now that I see how well it performs.
 
Have you tested it with two instances of Prime95 max heat/FTT stress test? If you could do that for me and let me know what you max overclock is without any cpu throttling, that would be great.
 
I don't have the programs you suggested to try. I did use THG_Clock watch and it didn't throttle during my tes,t although I'm sure Prim95 would stress it more. I'll see if I can DL the the test SW and give it a go. I'll post the results if I'm able to get this done.
 
You need to run 2 instances since it wont saturate the cpu w/ HT...2 instances of prime95 for me with my P4 could easily add another 4c....prime95 over 3dmark (which is a joke as a heat tester by the way) was as much as 6-8c after 1-2 hours....

I would say run 2 instances of prime95 then loop 3dmark to heat up the gpu and add that loaded case temp to the mix....I bet 41c idle on stock cooler you will load in the low to mid 60's....
 
LOL, I think you guys are trying to kill my new CPU! I DL'd Prime95 and Throttlewatch then tested at max heat/FFT. The results were: AT 3.9ghz, it had an error after 5 minutes in the 1024k FFT. The CPU temp w/stock cooler, was 55-57C. AT 3.6ghz, it ran the 1024k FFT & 896k FFt tests (31 minutes) successfully. The temp at 3.6ghz was 56-58C as reported by Asus probe. The CPU always stayed at 0% throttling in both tests. The OCing was done in the Asus BIOS AI settings for 20% and 30%. I don't normally OC, but it was fun seeing what this CPU could do. This is the first time I've used Prime95 but it seems like a good utility for stress testing. It's back to stock 3.0ghz for now but it looks like 3.6ghz would work well if I wanted to OC.
 
Another instance of prime would have added another 3-4c easy....load the system as a whole with a hat prducing vid card and we are talking about another 3-4c...

then we talk about getting stability at 3.9 which would require probably .05v at least to gain 2-4 hours stability...5min failue means pretty flacky...Add the vcore and we bump the tmps up probably another 3c there as well...

It also takes a good couple of hours to really get a god prime95 load temp....

Overall that is not bad for stock cooler...I see definitely you would near 70c with a true loading condition at 3.9ghz...aftermarket would be a most but could work and keep that temp down to manageable...Maybe later you will tap that or a reserve before an upgrade!!!
 
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