3.2 Prescott D0 SL7KC @ 4.25ghz on $35 HS

[dmzguy]

3.2 P4 "E" D0 Stepping: SL7KC Prescott + $35 ThermalTake Spark 7 Heat Sink + Abit IC7 (no v mods) + Generic, underpowered 500W PS = 4.25ghz max OC, 4ghz stable


If someone will post them, i have pics.


dmzguy

[stan03]

wow thats an amazing overclock. what vcore and temps?

you could try http://photobucket.com/

[I.M.O.G.]

If you mspaint them into the size requirements for the forums, you can post them as attachments. ;) I'd like to see the screenies.

What did you do to confirm stability?

[IceCoolJay]

Well Done. What voltages do u use to get to 4.25Ghz and 4Ghz stable?

[krag]

[subscribes to thread] :drool:

[dmzguy]

http://img78.photobucket.com/albums/v324/dmzguy/4.jpg

[dmzguy]

http://img78.photobucket.com/albums/v324/dmzguy/4ghz256.jpg

[Hardin]

Nice overclock :thup: . What type of memory do you have?

[stereo555]

:clap: VERY nicely done ! :clap:

Iam all jealous :p

[Dcasole]

Nice Job !!!!! :thup:

I wish I could get lucky and find a chip that would overclock that well :bang head

Dave

[dmzguy]

"what type of memory do you have"

OCZ PC3700 Gold only 2.7v it will do up to 260 with default timings, i got two good chips; I am going to be buying two 512mb sticks of Adata PC4000 after I confirm how they do after being fed lots of voltage...

Dmzguy

[(HR)Titan]

u have luck with ur chip so i hope u ll have luck with memory...
i ll planing to buy same memory , but after summer
pls keep post adata results
good luck

[Imperial]

nice chip you have there:)

[dmzguy]

You don't have to get lucky, you just need to go buy an SL7KC; it's not luck; it's research.

dmzguy

[IceCoolJay]

u run it 24/7 @ 4ghz?

I can get mine stable at 4Ghz using 1.48-1.50V as Vcore but don't want to damage it straight away. I've settled for 3.92Ghz for everyday use. Vcore from 1.46-1.48V

[krag]

You don't have to get lucky, you just need to go buy an SL7KC; it's not luck; it's research.

dmzguy


OK mister research...where cam we buy a SL7KC???? :)

[aNTiChRisT]

OK mister research...where cam we buy a SL7KC???? :)

I guess that's the "research" bit =)

~t0m

[batboy]

I think newegg has the SL7KC now. Those temps have to be idle if you are using 1.55v and cheap air. Bet that thing is pretty toast under load. Wish I could benchmark my 3.0E at 4 gig.

[ronaldj23]

Just got my SL7KC yesterday and installed last night. Letting it 'burn in' at 225FSB (3.60GHz) until my Cooler Master Hyper6 arrives next week. Running 43-44C at idle; 60C under full load @ 1.4V.

Question for dmzguy: Is your chip stable running Prime95? Thanks -- this post is great news since I now have this chip.

By the way, you may be able to get them at PC Supply Source (www.pcsupplysource.com). They charge $8 to hand pick the stepping for any chip you want. Just e-mail your request to sales@pcsupplysource.com and ask if they have your stepping in stock. They get back to you within an hour or two.

[ronaldj23]

Looks like the 59C is at idle (no other tasks running in the taskbar).

YIKES...

dmzguy, How about posting some temps under full load (you might want to call the Fire Dept. ahead of time)

[situman]

pcsupplysource is damn expensive. 300 dollars and thats before the hand picking fee and shipping. Yikes!!!

[Buzzdog]

I got my SL7KC from newegg. Mine is Prime stable at 4.0ghz with vcore set at 1.4875v. I have actually booted into windows at 4.4ghz but it is not stable. I have not yet seen what the actual ceileing is on my system do to lack of time. I will try and see what more it can do this weekend when I get home.

It would seem though that quite a few people are having good success with these chips. Is it a guaranteed 4ghz? NO. I need to get my Promitia re-gassed so I can get my temps back down again. Just seems weird to see my temps soo high.

[dmzguy]

Ok, you are all correct the pics posted ARE at completely idle. (but don't forget the IC7 is VERY close to reporting temps @ 10C above actual.) and "Call the fire dept" is correct. When running PC Mark @ 4ghz my motherboard hit 75c for a few seconds and the MB started beeping; I'm still trying to track down a decent direct-die phase-change setup, my last purchase fell through as the seller decided that they did not want to ship to the U.S.

I have also not run Prime95 on it, nor will I; many people try to argue "what good is an overclock if it's not stable"; I completely agree with this sentiment, however, I also believe that running Prime95 for 6 weeks straight is ridiculious; unless you have built a computer for the purpose of running Prime95. My machine has run all Sandra Tests (including burn-in (which seems to take a more literal meaning with this chip)) and PC Mark, DVD Burning, and FarCry with 0 problems. This is what I use my computer for, therefore, it is 100% stable.

A machine that can only get a screenshot IS useless, but then again, so is a machine that sits under your desk and runs Prime95 all the time.


dmzguy

[Jojo1971]

Ok, you are all correct the pics posted ARE at completely idle. (but don't forget the IC7 is VERY close to reporting temps @ 10C above actual.) and "Call the fire dept" is correct. When running PC Mark @ 4ghz my motherboard hit 75c for a few seconds and the MB started beeping; I'm still trying to track down a decent direct-die phase-change setup, my last purchase fell through as the seller decided that they did not want to ship to the U.S.

I have also not run Prime95 on it, nor will I; many people try to argue "what good is an overclock if it's not stable"; I completely agree with this sentiment, however, I also believe that running Prime95 for 6 weeks straight is ridiculious; unless you have built a computer for the purpose of running Prime95. My machine has run all Sandra Tests (including burn-in (which seems to take a more literal meaning with this chip)) and PC Mark, DVD Burning, and FarCry with 0 problems. This is what I use my computer for, therefore, it is 100% stable.

A machine that can only get a screenshot IS useless, but then again, so is a machine that sits under your desk and runs Prime95 all the time.


dmzguy

it wouldnt hurt if you try prime95 for at least 6 hours and report back to us..we are looking forward to purchasing a processor like yours, you know..:)
most of us believe in prime95 so can we request you to run it for us..thx..

[dmzguy]

I have the feeling that the machine will turn off from overheating, but.... I'll give Prime95 a try...

[ronaldj23]

Thanks mucho, dmzguy...it is correct to assume that many of us are believers in Prime95 but most of us (I assume) also believe that if we can get 6 hours without error, we are good. In fact, in my experience if it's going to fail, it usually fails in the first 30 - 60 minutes. Hope you don't burn your house down...

[ronaldj23]

Yo situman, you are indeed correct. It is however, a sure way to get what you are looking for. As far as I can tell, no other vendors provide S-Spec hand picking. It will, in total, cost you about 10% more than taking your chances with NewEgg (don't get me wrong -- I purchase plenty from 'Da Egg' and will continue to do so).

[situman]

PCSS $298 +8 dollars hand pick + 6 dollars shipping = $312
Egg = 278 Shipped


312-278=34

34/278= 12-13 percent premium. at that price a few dollars more and I can get the next speed grade.

[Airbornederekc]

dmzguy i am with you all the way i dont like prime 95 at all if it handles what i do then i call it stable

[IceCoolJay]

I don't like prime either, but it's very effective in finding any sort of instability. I'm not one who primes for a whole day to find instability. I normally dual prime over night (8 Hours). I think my system is stable enough after that.

My 3.2E SL7KC seems to be stable @ 4Ghz using 1.46-1.48V for Vcore. I run it @ 3.92Ghz with 1.44Vcore because at that speed i can run my ram with better timmings and lower voltage.

[ronaldj23]

PCSS $298 +8 dollars hand pick + 6 dollars shipping = $312
Egg = 278 Shipped


312-278=34

34/278= 12-13 percent premium. at that price a few dollars more and I can get the next speed grade.


You are correct. It just depends on how much you want a particular S-Spec. The next speed grade (3.4C) is a lot more than $34.00. NewEgg's 3.4C is $417.00 and you take the S-Spec they give you. I assume that if the had a 3.4E in Socket 478 (which they don't), the price would be the same -- it has been pretty much so with them.

Dude, I am not trying to argue but only to make the point that if you want a hand-picked S-Spec, you have that choice but at a higher price. That's all.

By the way, the SL7KC looks like it will be a great overclocker but it is very voltage-hungry. I hope you get one and post your OC results...

[ronaldj23]

I don't like prime either, but it's very effective in finding any sort of instability. I'm not one who primes for a whole day to find instability. I normally dual prime over night (8 Hours). I think my system is stable enough after that.

My 3.2E SL7KC seems to be stable @ 4Ghz using 1.46-1.48V for Vcore. I run it @ 3.92Ghz with 1.44Vcore because at that speed i can run my ram with better timmings and lower voltage.

Yo, IceCoolJay: what's your setup?

[IceCoolJay]

3.2E SL7KC @ 245 FSB (3.92Ghz)
Abit IC7
Corsair 1GB Twinx XMS4000 (2.5-4-3-5) @ 2.8V (1:1)
480W Antec True Blue PSU
9800 Pro
Audigy 2 ZS

[situman]

no offense taken. those temps are really scaring me away from them for now.

[Stratcat]

As far as I can tell, no other vendors provide S-Spec hand picking. Azzo Computers will hand pick. I got my 2.8 'MO' from them. But they're nowhere as cheap as the Egg or ZZZ, either.

Strat

[ronaldj23]

3.2E SL7KC @ 245 FSB (3.92Ghz)
Abit IC7
Corsair 1GB Twinx XMS4000 (2.5-4-3-5) @ 2.8V (1:1)
480W Antec True Blue PSU
9800 Pro
Audigy 2 ZS

What kind of cooling and what temps are you getting at idle and under load?

[IceCoolJay]

44c idle - 55c load

sp-94 with 92mm tornado @ 2500 RPM

[Dcasole]

44c idle - 55c load

sp-94 with 92mm tornado @ 2500 RPM

Boy glad to here this I just bought an sp-94 :thup:

Dave

[DocLiv]

Great Overclock dmzguy! :clap:

Hey which bios are you using? The latest one has "corrected" temps for prescotts.

Here's my temps at the same oc.

http://www.docliv.com/pics/screens/4GHz%20temps%20volts.jpg

[Dcasole]

Doc . nice overclock!! :thup:

Are your temps on air?

Dave

[Jimbob7]

nice o/c's in here, and its got me thinking, i know its probably to early ask but is the 3.2E D0 consistantly breaking 4g with good air cooling? :D

[stan03]

idk if its consistantly breaking 4 but the D0 stepping is indeed a very good overclocker.

[ShaftedTwice]

Holy carp, very nice oc, but are you sure that heatsink will hold it? =/

[curt123]

So is the it the groups feeling here that its worth the extra 60 bucks to goto the 3.2 over 3.0? I think my crucial memory can do 240ish 1:1 no problem 250 at 3:2. I am very close to making a move here, I suspect my 2.6 will do much better on better ram but the voltage drop issue concerns me along with northbridge heat issues, would rather run a more relaxed fsb and get the mhz im seeking, I can boot at 252 at the most relaxed timings even at 240-245 I dont have to crank the volts up above 1.58 so this chip might need a new home with good memory anyone interest?

[ronaldj23]

Great Overclock dmzguy! :clap:

Hey which bios are you using? The latest one has "corrected" temps for prescotts.

Here's my temps at the same oc.

http://www.docliv.com/pics/screens/4GHz%20temps%20volts.jpg

Yo, DocLiv, I have an IS-7 and have some pretty dramatic vCore voltage drops (no surprise) when I push the SL7KC over 3.8GHz. I notice that you have 1.44 volts at 4.0; how high do you have the voltage set in the BIOS, or do you have a Vdroopmod on your IC7?

I feel certain I can get over 4.0 when my Hyper 6 gets installed but on the Zalman CU7000, I'm at 68C at 3.7GHz under moderate load (one instance of the Prime 95 TortureTest running) using Bios 20 with temp correction. I will have to crank the vCore voltage to get 4.0 and that means a lot more heat. Case cooling is good; Antec with side fan channeled to the HSF and two rear exhaust fans. I just hope the Hyper 6 will reduce the CPU heat by at least 6-8C.

[aNTiChRisT]

pcsupplysource is damn expensive. 300 dollars and thats before the hand picking fee and shipping. Yikes!!!

That's how much UK people buy thier 3.0c' for -- not hand picked. Count yourself lucky ;)

I'm not a believer in prime stability -- i'm not running a science cruching farm, i play online games. If i dont crash, there aint no problem.

I only rolled it back since i started playing star wars galaxies -- for some reason that needed the stability, but 3.75 resulted in NO reboots NO crashes and i do push this rig though 24/7 usage.

~t0m

[mattspalace]

I just picked up a SL7KC from Microcenter, but I paid a whopping $329.. We'll see how she does.. The salesguy liked hearing the details of overclocking, stepping, batches, etc..

Here's the info from the box:
Stepping - SL7KC
Batch - 3418A644
Pack date - 06/11/04
Costa Rica

[mattspalace]

I'm currently running 230FSB at default voltage (3.69GHz). Think I'll let the fresh AS5 settle in before I go higher. My idle temp is 44c - gone are the days of 34c idle temps.. :(

I do have an unlocked 2.6C engineering sample I might try out..

[meionm]

any prime done on any of those 4gh chips

[ronaldj23]

I'm currently running 1.44v 225FSB for 3.6GHz. Think I'll let the fresh AS5 settle in before I go higher. My idle temp is 48c - gone are the days of 34c idle temps.. :(

I do have an unlocked 2.6C engineering sample I might try out..

You are correct about the 34c idle temps being gone...My idle temps are currently 47-48c with the Zalman Cu air cooler and are steady at 68c with Prime 95 Torturetest. That's at 3.71GHz. Prime is stable there for 2 hours (that's all I ran it) but my son (gamer) had no crashes with his online shooters so, everything is stable at this point. I hope to get the Hyper 6 today and will report new temps after installing.

[Private Joker]

OK mister research...where cam we buy a SL7KC???? :)

For people in Europe:

Pentium 4 3.2e SL7KC (http://www.oc-wear.de/pd-1115615857.htm?categoryId=5)

[DamienKC]

What about the USA? I'm building a pc for my friend, I told him about these and he wants one now =P

My nub friend is going to have a better pc than me -.-

[batboy]

Although there is no guarantee what you'll get at newegg.com, I've heard from a couple people now that have gotten the SL7KC from there. I must remind people that "your mileage may vary" so don't expect every 3.2 DO to overclock the same as this one. The law of averages suggests there will be exceptional ones and crappy ones and everything in between.

[mattspalace]

Batboy is certainly correct. My SL7KC crapped out a 230FSB. Lucky for me Microcenter has a decent return policy, so I took 'er back and got another one. I even told 'em it worked fine, but I wasn't happy with the overclock.
So this new one is a SL7B8 - Batch Q418A482. It's currently running 240FSB with 1.5v (idles @ 51c) - basically this is just luck of the draw fellas.. Just like those 3.0C SL6WK's awhile back..

[mattspalace]

Here's an update.. I'm currently at 3.92GHz with 1.525v in the bios, but 1.50v actual. Passed four loops of 3DMark2K3.. Haven't primed yet, but will let it run overnight.
Not bad for a C0..