L628B e6400 1m pi @ 3.99ghz

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10-27-2006, 05:36 PM
menlatin

L628B e6400 1m pi @ 3.99ghz

Got this cpu from The Nemisis today. I didn't do a whole lot of testing before i lapped the cpu. I pretty much just tried booting to 4ghz. It did that but crashed in pi. Temps are also pretty high even on water. Here's some shots.

http://i89.photobucket.com/albums/k235/menlatin/pi3.jpg
http://i89.photobucket.com/albums/k2...latin/4ghz.jpg

I think 3.6ghz blended prime stable is going to be my 24/7
http://i89.photobucket.com/albums/k2...in/3600137.jpg

It did just under 3.3ghz ghz @ 1.28v primed. But again temps were pretty high. As you can see 71c load @ 3.6ghz and only 1.37v AND lapped. But it is prime stable. I still think this means i have to pull the IHS off tonight! :D
10-27-2006, 06:59 PM
hausner

so far great oc result , keep going man !
10-27-2006, 07:22 PM
Noob-ftw

Nice results. It's lapped and it runs at 1.36V/3.6ghz @ 71ºC?

I don't think you placed the HSF on correctly or it could be a faulty sensor.
10-27-2006, 08:10 PM
menlatin

no, i'm pretty sure its actually getting that hot. Got some more results

http://i89.photobucket.com/albums/k2...latin/pi10.jpg
http://i89.photobucket.com/albums/k2...in/pi14mod.jpg
^This one i had to chop a little because i didnt have cpu-z open and it would be hard to see the clockgen
http://i89.photobucket.com/albums/k235/menlatin/pi7.jpg

BBBUUUUTT!!!!.... I have to admit..... i cheated a little bit.... its about 12C outside, and i opened my window...... air going to my rad is ~ 16C... :rolleyes:

But its still results. With its response to lower temps like this, there's no way the IHS is staying on now!
10-27-2006, 08:30 PM
guess2098

hahahahahah
but good overclock!!
your pi is a bit slow tho...

Quote:

BBBUUUUTT!!!!.... I have to admit..... i cheated a little bit.... its about 12C outside, and i opened my window...... air going to my rad is ~ 16C
10-27-2006, 11:35 PM
menlatin

which one is slow? The 4066mhz was with 5-5-5-5 timings on the ram @ 508mhz. I can't seem to get any better regardless of voltage. There, it was @ 2.0v. @ 3.6ghz i can push the ram to 562mhz 5-5-5-5 @ 2.15v.

I ran a 3d mark05 , and there was only 82 mark difference between 3.95ghz 508mhz 5-5-5-5, and 3.6ghz 562mhz 5-5-5-5. maybe i've hit my gpu bottleneck...?
10-28-2006, 03:25 AM
JMKS

Well, so this is called Xtreme Overclocking?
I have better time @ <4GHz on air, althought the frequency is pretty good :).
However, keep trying :toast:.
10-28-2006, 03:49 AM
menlatin

Yeah... but can you do this?
http://i89.photobucket.com/albums/k2...atin/4g32m.jpg

I pulled the IHS off and got this. Also got some 3.6ghz @ 1.36v prime stable. I got 3857mhz to last 30 mins with one core failing becuase of built up heat. 3920mhz lasted about half that for the same reason. I think if i could get a pa 120.3 i could do 3920mhz prime stable.

Here's a little faster pi
http://i89.photobucket.com/albums/k2...atin/pihi1.jpg

What ram do you have though? I got mine for $160 and its a hella of a bang for the money, even though its 5-5-5-5
10-29-2006, 10:46 PM
menlatin

http://i89.photobucket.com/albums/k2.../3840prime.jpg

I lapped my storm, but it stll has some pretty heft nicks that would take removing ALOT of material to get out, so i'll just live with it. Also opened to windows again, but its only 21c tonight. I think i can call 3840 my 24/7. Could that be the highest e6400 prime on water?
10-30-2006, 05:48 AM
ssabripo

man, you guys are NUTSZ!!! :clap:

note to self: never EVER buy a cpu from mentalin or JMKS :lol:
10-30-2006, 07:46 AM
JMKS

Quote:

Originally Posted by ssabripo

man, you guys are NUTSZ!!! :clap:

note to self: never EVER buy a cpu from mentalin or JMKS :lol:

I'm running 2,4GHz @ 1,1V 24/7, 40°C @ 2xSP2004, so not as extreme :).
menlatin, I'm not sure if my rig is capable to do this, but I will try to beat 14,5s for sure :).
I have winter in Poland right now, ~5°C at night (and dropping ;) ), so I think that only the 1,7V is limiting me (1,625V used for this score which I posted above), the temps are pretty good: <65°C all the time, ~52°C @ idle (it was on much higher ambient temp), of course it is impossible for me to make both cores work at the same time at such speed, but who cares ;).
10-30-2006, 08:07 AM
fhpchris

Quote:

Originally Posted by menlatin

http://i89.photobucket.com/albums/k2.../3840prime.jpg

I lapped my storm, but it stll has some pretty heft nicks that would take removing ALOT of material to get out, so i'll just live with it. Also opened to windows again, but its only 21c tonight. I think i can call 3840 my 24/7. Could that be the highest e6400 prime on water?

I would not trust any of those temperatures much. Just swapping CPUs for me can easily change the temps 10+C sometimes, even with a perfect mount...

The probes are not calibrated or reliable.
10-30-2006, 08:42 AM
menlatin

i dont believe the asus probe temp, since my coretemp is lower. With my 1st de-lidded e6400, temps between the mother board utility and coretemp were about 11* after removing the ihs. Before, temps differed by about 3* but still higher on coretemp.
10-30-2006, 01:09 PM
menlatin

damn. My motherboard blows... :D I had a little more fun with ln2 and could only get 4058mhz prime (turned it off @ 10mins). The board simply does not want to do much over 500fsb. even the crashes that i get during prime testing are just black screens then reboots. We'll see 680i will do for me.

I didn't go with the the ln2 tube this time, just sprayed ln2 on my radiator
4079mhz failed after about 5 mins.

here's screens.

http://i89.photobucket.com/albums/k2...latin/4058.jpg
http://i89.photobucket.com/albums/k2...58idlkeln2.jpg
http://i89.photobucket.com/albums/k2...in/4058ln2.jpg

pics of the ln2 on rad tonight.

I think with just a little bit of peltier power, this cpu can do 4ghz prime stable. The only problem is getting a rad that will handle the load. PA 120.3 is where its at.

OH yeah, here's a cinebench @ 4ghz
http://i89.photobucket.com/albums/k2...n/cine4ghz.jpg
10-30-2006, 02:04 PM
Revv23

ln2 on your rad? wont that freeze your coolant?

Anyways nice.

these 628 b chips really are something special, seems you have one of the weaker ones and still 4ghz.
10-30-2006, 04:36 PM
menlatin

Well, i had a tube from the tank, and the valve just brealy open, so only a little bit of ln2 was coming out and spraying ont he fins. here's some pics
http://i89.photobucket.com/albums/k2...n/DSCN0850.jpg
http://i89.photobucket.com/albums/k2...n/DSCN0851.jpg
http://i89.photobucket.com/albums/k2...n/DSCN0852.jpg
http://i89.photobucket.com/albums/k2...n/DSCN0853.jpg
http://i89.photobucket.com/albums/k2...n/DSCN0854.jpg
http://i89.photobucket.com/albums/k2...n/DSCN0855.jpg

My coolant is about 15% antifreeze, and the water is moving by an mcp655. Moving water dont freeze.

Hey Revv, whats your max dual prime? And show me some dual 32m pi! :D

I wish i could get this boad to do over 510 fsb though. Even lower multi's, i can't post over 520, and can't boot over about 505. vmch up to 1.65 does nothing, and running 1.25v @ 4ghz
10-30-2006, 04:51 PM
boshuter

Why are the 1M times so slow? At 4ghz you should be well down in the 12's.
10-30-2006, 04:56 PM
Revv23

1 Attachment(s)

Quote:

Originally Posted by menlatin

Hey Revv, whats your max dual prime? And show me some dual 32m pi! :D

Next time i have a bench session ill do some dual 32m...should be able to run over 4... as for dual prime i dunno, you probably have me beat, i dont run above 3.6ghz for long term, just benching and then im back down...i dont like how hot things get.

edit - just re-read the thread, I can dual prime all day long 3.6ghz, i run 1.5v, but i never tried lower then that, right when i got the cpu i just went to 1.5v..so maybe i am ok.

has your cpu been lapped? i run orthos temps very similar to your only im on air and i have .2v more then you... with a nice water setup like yours you should be way colder, i would think about lapping if you havent already.
10-30-2006, 08:15 PM
The Nemesis

Revv23 I think he's delidded.

I think maybe I should have tested all the cpu's before I sold 'em. Guess I got lucky with mine because I didn't lap or pop IHS and can still hit 4039 Mhz pi stable. My chip would do better in menlatin's hands. LN2? gonna have to read into this:)
10-30-2006, 08:52 PM
lopri

E6400 has 2MB L2 cache. Can't compare the Pi results with 4MB CPUs. Also temperatures tend to rise linearly with frequencies. Lower Vcore will get you lower temps (especially at idle) but it still can't stop the temps that rise proportionately to frequencies.

Awesome results, menlatin.
10-30-2006, 08:59 PM
ingenue007

i have l629b chip. i think the temps on these chips are HIGH. i lapped mine today and it runs at 58 c idle. either that or my temp probes don't work since i dropped voltages and my temps are the same.
10-31-2006, 06:37 AM
menlatin

i'm going to pull the IHS off my crappy L629B today. Results will come tonight. Ppl keep lowballing me on the sale price, and i'd rather have some fun with it if i'm going to lose $60 for a cpu thats been used for 2 days.
10-31-2006, 07:54 AM
Revv23

Quote:

Originally Posted by The Nemesis

Revv23 I think he's delidded.

I think maybe I should have tested all the cpu's before I sold 'em. Guess I got lucky with mine because I didn't lap or pop IHS and can still hit 4039 Mhz pi stable. My chip would do better in menlatin's hands. LN2? gonna have to read into this:)

Hmm no he is just lapped...

I dont know why you should have tested them, these are proven chps and every one that passed through your hands has hit 4ghz.

Im thinking about making a cheap dice pot for some fun but im not sure if my p5b is up for the task, i had trouble at 520 fsb before and im not sure if it was my mobo or my cpu. Either way im still waiting on my maximizer before i fire up again.
10-31-2006, 08:35 AM
menlatin

actually yes its de-lidded.

http://i89.photobucket.com/albums/k235/menlatin/ihs.jpg
10-31-2006, 08:39 AM
menlatin

and right now priming @ 3900mhz 1.51v 18c ambient. Notice lowwr volts than 3840mhz @ 22c ambient. Also 3918mhz failed after 20 mins. Something on this board is heating up and kills my stability, i know it is. I put a fan bowing cool air on the mobo, and it primes higher. It may be my vregs, as they dont have any heatsink any more and get pretty hot to the touch. Probably going to order some swiftech's for them. This chip has more, I KNOW IT!!!

http://i89.photobucket.com/albums/k2...latin/3901.jpg
10-31-2006, 12:15 PM
menlatin

L629B is now really a POS. When i was tourching the IHS, i heard the normal pop, but the cpu didn't drop. Hmm... heat it again... no pop... Lifted the razor blades and greeted with liquid solder sitting on the core for about 5- second. Apprently the razor blades heated the silicone and stuck to it, and thast what was holding the cpu up. So i heated the core, and now it wont even do 3.2ghz.... oh that sucks.
10-31-2006, 02:51 PM
kiwi

I have a good L629B 6600 but for some strange reason I have serious issues with heat. At high 1.5V+ vcore temps read 85C+ at load and cpu starts throttling even though everything is disabled in bios. For instance, it calculates 1M in 30secs lol. Other cpus that I've tested don't have this problem. I suspect either realy bad IHS (it doesnt look bad though) or poor IHS contact with the core. If everything fails I might have to get IHS off somehow.

http://valid.x86-secret.com/show_oc.php?id=134063
10-31-2006, 03:35 PM
menlatin

Some tips on that. use 4 razor blades, like crazyxp shows in the removed IHS thread. It'll pop, and the cpu should drop. If it doesn't drop, lift the blades. Dont make the sme mistake as i did. this cpu has obviously taken a hurting and can only do 2.8ghz now.
10-31-2006, 04:42 PM
JMKS

OK, so maybe I have lower frequency (this is on AIR, remember), but the time is pretty awesome I think. I maxed every voltage (NB, SB, VCore, VDimm etc) and this is the result :D
11-01-2006, 04:40 PM
menlatin

nice time. But i bumped up my ram voltage and tightened it up, now that i'm pretty sure i have D9's. This is what happened
http://i89.photobucket.com/albums/k2...10-24-4434.jpg
and @ 4100mhz
http://i89.photobucket.com/albums/k2...n/4100hipi.jpg

Just squeaked by you :D

I want to break 13's, but i dont know if tis going to be possible :(. I'm right there!!
11-01-2006, 05:25 PM
menlatin

And i can't do it.
http://i89.photobucket.com/albums/k2...in/4110pi2.jpg

Thats max pi with normal conditions. 21c ambient, indoors, 1.61v, 4-4-3-4 2.45v 513mhz
11-01-2006, 08:20 PM
menlatin

oh damnit i'm RIGHT THERE!!!!
http://i89.photobucket.com/albums/k2...latin/4138.jpg

This was actually @ 4138. I had just clicked to 4145 to try that, and did print screen after.
11-01-2006, 08:45 PM
Revv23

wow nice now that chip is flying!!! are you using maxmem tweak? might throw you over the top.
11-02-2006, 05:49 AM
menlatin

i did it!!!. Left my windows open over night to 8c air and the computer off. Name in, boted to 4080, clockgened to 4136 and got going fast before the mobo heated up.

I closed any program that might slow me down, but left explorer running, becuase there was very little difference. Also tried booting is diagnostic mode, but that lost about .2s.
here's 4154 1.61.v

http://i89.photobucket.com/albums/k235/menlatin/13s.jpg

http://i89.photobucket.com/albums/k2...in/13scpuz.jpg

this one i had cpu-z open while running pi, so it slowed it just a bit.

I tried 4172 with cpu-z closed, and got 14.922, but then when i tried to open cpu-z it crashed. but thats ok, i BROKE 13s!!!
11-02-2006, 06:02 AM
JMKS

Good competition is always reccomended :).
Well, my max so far is 14,187s @ 4106MHz...
Congratulations :) :toast:
It will be very hard for me to achieve <14s, but "never say never", I will try ;).
11-02-2006, 06:08 AM
menlatin

Thats right. Thank you and keep pushing

:banana: :banana: :banana:
11-02-2006, 09:50 AM
serious1

what is the difference between a L628A(the one i have) and a L628B? do you think my L628A will be game for 3.6ghz?BTW: great job there Menlatin;).
11-02-2006, 10:54 AM
TiTON

Congrats on breaking 13 :D The best I got w/ my 6400 is 13.375.

I want to break 12.. but its going to be hard if not impossible. I was doing 13's at 4.4Ghz :(

My Ram can do Cas4 @ almost 600. I need to see if I can tighten the timing on it.

http://www.ironmods.com/ImagePosting...x%20576%29.jpg

SAD
11-02-2006, 11:08 AM
kiwi

Opened window for some cool air :D Ambient is around 15C probably

L629B383

4.1Ghz 1M
http://img523.imageshack.us/img523/8...001mairnf3.jpg

3D at almost 4Ghz, probably will do 4ghz at more volts
http://service.futuremark.com/compare?2k1=9080875

max on air 4266Mhz
http://valid.x86-secret.com/show_oc.php?id=134778
11-02-2006, 11:10 AM
DarkSephiroth

I'm guessing thats batch B?
11-02-2006, 11:12 AM
Revv23

Quote:

Originally Posted by kiwi

Opened window for some cool air :D Ambient is around 15C probably

L629B383

4.1Ghz 1M
http://img523.imageshack.us/img523/8...001mairnf3.jpg

3D at almost 4Ghz, probably will do 4ghz at more volts
http://service.futuremark.com/compare?2k1=9080875

max on air 4266Mhz
http://valid.x86-secret.com/show_oc.php?id=134778

Not fair, you have more cache. try doing that on 8x multi, it is much harder.
11-02-2006, 11:38 AM
menlatin

Quote:

Originally Posted by SuAsDu

Congrats on breaking 13 :D The best I got w/ my 6400 is 13.375.

I want to break 12.. but its going to be hard if not impossible. I was doing 13's at 4.4Ghz :(

My Ram can do Cas4 @ almost 600. I need to see if I can tighten the timing on it.

SAD

What kind of ram you got? volts? subtimings? mobo?
You should definetly be able to break 12's with some ram tweaking, and cold air around the mobo.

Kiwi - I want your cpu!
11-03-2006, 04:38 PM
JMKS

It looks like I'll have a hard time breaking 13s... 14,078s, only ~0,5% higher then target...
Max FSB 1M-stable for me is 513,3. I have just benched over 2 hours in Win2003, run once XP (far from optimized, because it has over 40 days and I'm using it 24/7) and get better time. So I think that XP is better than non-fully-tweaked 2003, for 1M of course.
Hmm... not used any tweaks (only kill processes (not services), realtime-priority and affinity to CPU1, but this is obvious).
Any suggestions? Fresh install, kill some services, copy-waza, MaxMem? Will this do the trick? I hope so and will try, now I'm a little frustrated that I'm so close and not able to achieve 13s ;).
11-04-2006, 07:51 AM
menlatin

you dont run with cpu-z open do you?
11-04-2006, 03:03 PM
damnnit

Quote:

Originally Posted by serious1

what is the difference between a L628A(the one i have) and a L628B? do you think my L628A will be game for 3.6ghz?BTW: great job there Menlatin;).

B stepping is international chip. Your A stepping should hit 3.6ghz no problem though.
11-04-2006, 07:19 PM
serious1

^sweet thanks:). now if only asus would fix their uber buggy board:(.

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