Mobile P4 3.06 Prescott OC - 4.2 on air?

[illusionz3]

*****UPDATE******

I did a lot of testing last night. I have come to the conclusion that it is not running at 4.2. If I set the fsb to anything higher than 200, cpu-z really starts messing up. I realized that even though cpu-z said 300 FSB like in the first screen shot, it was actually set to something in the 150 range. I played around with a few things and found out that cpuid's ClockGen program seems to show the correct information. I started raising the vcore and the fsb in the bios. For some reason, I could not get it to boot at 250+ fsb but I was able to change it in windows with clockgen. I'm pretty sure clockgen works because when I go too high, the system crashes and when I increase fsb through it and benchmark, the scores go up. I set the clock speed to 3746, which I think is accurate now, and started running prime95 last night. It's still going without any errors or warnings. The temps are still kind of cool, flucuating beween 38 - 44 C on load. Here is a shot of what's going on:

Very strange CPU-Z, MBM Dash, 3dmark03 system specs, prime95, ClockGen

******************


Just came in the mail today, been playing with it for about an hour or so.

Setup:

Mobile Intel Pentium 4 3.06 Prescott (ES) D0
Thermalright SP94, Vantec Tornado, Nexus Fan Controller
Asus P4C800-E Deluxe
OCZ Dual Channel PC3500 Enhanced Bandwidth
BBA 9800 Pro w/ VGA Silencer
Antec 550w
Lian Li PC-61

Results:

Running prime95 now, passed a couple passes of memtest. (Screenshot is idle)

CPU-Z, MBM Dash

Core Speed: 4208
Multiplier: 14
FSB: 300
Bus Speed: 1202
Memory: 2.5-3-2-6 @ 188 Mhz (Will tighten this up a little later)
Idle Temp: 29 C
Load Temp: 36 C

Prime95 is up to test4, cpu temp is 36 C.

I'm very happy thus far.

 

[SinfulWeeper]

and just where exactly does one find a ES core? I have looked around for the last 3 years

 

[charloscarlies]

4.2 ghz on air?? :Q

 

[illusionz3]

Actually, I got it from someone right here on anandtech, caught it lucky I guess.

 

[illusionz3]

Originally posted by: charloscarlies
4.2 ghz on air?? :Q

Yes, and very cool.

 

[jdiddy]

Ohhhhh nice setup.

 

[Zebo]

29C? 4200mhz? On air? hmmm...

 

[Yanagi]

Smells like teen spirit.

Any photos from BIOS or similiar? Seems like your temp readings are wrong? Dont mean to offend but. hey bring it up some more if you'd like

 

[jswjimmy]

nice but why not run ddr550 1:1, 1100fsb then up the mult.

 

[zShowtimez]

Originally posted by: jswjimmy
nice but why not run ddr550 1:1, 1100fsb then up the mult.

Notice his ram. Chances are it will not run DDR550. Could possibly do DDR500 and adjust the multi as you suggested though.

 

[jswjimmy]

Originally posted by: zShowtimez

Originally posted by: jswjimmy
nice but why not run ddr550 1:1, 1100fsb then up the mult.

Notice his ram. Chances are it will not run DDR550. Could possibly do DDR500 and adjust the multi as you suggested though.

thats true, he could buy some though.link

 

[illusionz3]

First, I can post some pictures later today but the bios does report the same temperatures.

Secondly, anyone know what the highest vcore I should give it. The default is 1.2!

Third, having a little trouble hitting 200 FSB, not sure why but I will work on it some more after work today.

Fourth, anyone know how to set the multiplier, the asus board still says its locked (seems like cpu-z says no). Maybe I'll buy a maxIII. I'll probably do the vcore droop mod on the asus sometime this week also.

 

[bobbyk]

THis sounds like it is a new core revision. Is it?

Those temps have to be wrong if it isn't. Even the first revisions were hot, way hot.

This is sort of expected though. I am guessing that it is a 478 pin. Maybe this cpu is unique or something. If intel could have done without it, i think they would have waited with lga775 to perfect the design. The platform is obviosly still in its first stages.

 

[illusionz3]

I really don't think the temps are wrong. I've been running a 3.0e prior to yesterday in the same setup and idle was 40 C and load was around 52 C. However, I can't confirm that those were "correct" and I don't have the tools to test myself.

 

[jhurst]

Everybody knows the Asus under-temps, which IMO is smart because then you get ppl talking about how cool their systems are, even though in actuality they aren't.

 

[illusionz3]

Well, prime95 died after an hour so I upped the voltage slightly, now getting 42 C load. Just thought I'd fill you guys in.

 

[Mir96TA]

Kick Ass
4.2 with AirCooling... Nice very NICE
I am glad CPU is working for ya........
Too bad I had Dell SC400..... I couldn't use that CPU

 

[GreatBarracuda]

I see that the multiplier is unlocked...

 

[Dug]

WOW! Nice find.

 

[BigBadBiologist]

Someone on hardforums was selling one of these. From the way the thread looked, it seemed like everything reported the CPU was at 4.6 or so, but performance was at about a 2.6. I think something may be funny with these processors and their multipliers and the way desktop boards report them.

If it does turn out to be real, congrats dood! That's some sick processing power.

 

[illusionz3]

I was home for lunch before and was doing some tests. Some things do seem a little arkward. When I set FSB around 200, it boots fine, bios reads it as operating 4.x ghz then in windows cpu-z says the fsb is 30 resulting in 300 Mhz clock speed. I also ran 3d mark 03 during lunch. I tesed the 300 mhz config and it sill puts out a couple hundred fps for the first test, very weird. I ran all the benchmarks at 4.2 ghz and he system scored roughly equivalent to my 3.0e@3.64. It is probably a similar situation to the guy on forums mentioned. I'll continue to do some more testing and le you guys know. Is there anyway o adjust the muliplier with mobo, it is still saying it's locked. FYI, after a little more testing I will probably go back to my 3.0e on my main system. I may keep this chip for fun but if anyone wants it to use on another setup, shoot me a pm. Agh, back to work for me.

 

[lookin4dlz]

Well, shouldn't the mobile versions run cooler?

 

[illusionz3]

Well, upon leaving the parking lot at work, I backed into some dude's car. So I gotta start gathering some cash. I won't have the money to try this out on other motherboards so off to FS/FT it goes.

 

[Showtime]

Were there any screen shots? Are Pent mobile chips all unlocked?

-show

 

[Lyfer]

What an overclocking feat. More picts please, I find it really (and I mean really) hard to believe 4.2GHZ is possible on air.