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E6420 Overclock Thread

I guess I'm lucky, my girlfriend tends to just ignore my tech budget... I just tell her it's for work. ;)
 
Ah, point taken. :p

By the way, grats on your stable overclock Evoic. Just noticed it in the Official OC Database thread.
 
Ah, point taken. :p

By the way, grats on your stable overclock Evoic. Just noticed it in the Official OC Database thread.

Thanks, bro. Much appreciated.

If I had water-cooling I'd keep trying to give you a run for your money, but.....back to that Wife + Budget = Air Cooling problem.

:p
 
Currently stress testing my E6420 @ 3.6ghz. Have let Asus handle the voltage up till now.

Temps at 50deg with watercooling.
 
Woot!
Back on the throne for fastest E6420 stable overclock!

User Name: Terc
Stability: 4hours 8min Small FFTs Orthos

CPU: E6420
OC: 3656MHz
Stepping: 6 B2
Week: L647
Code: G476
Vcore: 1.57v

Cooling: Water
Cooler brand/model: Swiftech Apogee GT

Motherboard: P5B-Deluxe
Bios Version: 1004
Operating System: XP 32

RAM brand: Crucial
RAM rated speed: PC2-6400
RAM actual speed: 914Mhz
Latency: 4-4-4-12 2T

Orthos 4hour 8min stable
cropped3655lv9.png


CPU-Z Validation http://valid.x86-secret.com/show_oc?id=203151
 
Woot!
Back on the throne for fastest E6420 stable overclock!



I'm just getting warmed up!! Get ready for some competition up therre ;)

I've got a 6600 and 6420 I keep swapping back and forth. Both are stable now to mid 3.6's. Pushing higher and swapping to another motherboard....I'm coming! :D
 
I'm just getting warmed up!! Get ready for some competition up therre ;)

I've got a 6600 and 6420 I keep swapping back and forth. Both are stable now to mid 3.6's. Pushing higher and swapping to another motherboard....I'm coming! :D

Wow, just took a look at your sig. Nice rig!

We actually have a very similar cooling system, although I have a dual radiator configuration so I can fit it inside my P180. Also, using the Apogee GT and chipset cooling.

I'm just happy I've taken back the top for now. Not sure if I'd be willing to go much higher, although I still need to make an official fastest unstable, so far I think I was around 3860Mhz...
 
Here is what I'm playing with now...both the 6600 and 6420 can do this.

3792.jpg
 
I'm just happy I've taken back the top for now. Not sure if I'd be willing to go much higher, although I still need to make an official fastest unstable, so far I think I was around 3860Mhz...


A whole 5 MHz!

I'm sure your board had an option that would boot 3651, you shoulda used it and saved your chip the volts. :p

I'd go higher, but I don't know if I could live with the thoughts of someone killing their chip just to best me by 5 MHz. :D
 
No. not yet. The E6420 is a L709, the 6600 is a L701. I can boot over 3.8Ghz tho.

My L709 is rock solid @ 3.2 Ghz on air (Ninja). Thinking about pushing it further, as I'm only juicing it with 1.375v and full load temps are in the neighborhood of 55C (now that the weather's heating up)...:p
 
A whole 5 MHz!

I'm sure your board had an option that would boot 3651, you shoulda used it and saved your chip the volts. :p

I'd go higher, but I don't know if I could live with the thoughts of someone killing their chip just to best me by 5 MHz. :D

:D I had to do it. I was the first E6420 OC, then quickly became middle of the pack.
I had intended on making 3704Mhz, but just couldn't get stable. I really need to do the p5b vdroop pencil mod, but it's a little scary. My vdroop was getting bad up there around 3700, I may make one more run after lapping and pencil mod, but for now, I'm quite happy, and also relieved to be back to my 3504Mhz daily OC.
 
No. not yet. The E6420 is a L709, the 6600 is a L701. I can boot over 3.8Ghz tho.

My personal best that was stable enough to make a 1M SuperPi Mod was 3840Mhz, however, my vdroop gets soo damn high up there...
I'm curious to see how the L709s compare with the L647s. Right now the L647s clearly lead the pack on the official OC board.
 
Speaking of lower temps...
I just found this, and thought I'd send people to check it out if they hadn't already heard about Masscool Shin-Etsu x23 thermal paste.
http://forumz.tomshardware.com/hardware/DaClan-Review-Thermal-Interface-Shootout-ftopict221751.html

If the review sold you on it, I found a place to buy it:
http://www.crazypc.com/products/x23-778d-50119.html
http://www.ajigo-store.com/se7783d.html lower price, but I've personally never shopped here


:EDIT:
sorry guys, those links are for the 7783D revision of the thermal paste. The guy that organized the test says that it is a slightly better revision, however, they used 7762 in the tests.
It can be found here: http://www.crazypc.com/products/50118.html

And while I'm at it, the best instructions I've found for applying a super thin layer of paste:
http://amdforums.com/showthread.php?s=&threadid=230649&highlight=Application


Lookie what I found. :D :D :D

http://forums.pcper.com/showthread.php?t=415964

I checked around and this guy is a great seller on that forum and his reputation is extremely solid.

Shin-etsu for $8 shipped !
Can't beat that anywhere...... ;)
I promised that I'd send some busienss his way for being so helpful to me while I was hitting him up with questions.
If you buy a tube of this stuff - tell him Evo sent you.

Please.

Thanks!

p.s. He only has about 30 tubes left ! !
 
Lookie what I found. :D :D :D

http://forums.pcper.com/showthread.php?t=415964

I checked around and this guy is a great seller on that forum and his reputation is extremely solid.

Shin-etsu for $8 shipped !
Can't beat that anywhere...... ;)
I promised that I'd send some busienss his way for being so helpful to me while I was hitting him up with questions.
If you buy a tube of this stuff - tell him Evo sent you.

Please.

Thanks!

p.s. He only has about 30 tubes left ! !

Uh oh, what's the wife gonna say?
 
Does anyone know if the e6420 has a FSB wall? My computer is currently rock solid at 485, but I can't even post at 486...which doesn't seem to make any sense.

e6420
P5k Deluxe
Ultra 120 Ex

485 x 7 = 3.395
CPUv 1.475
everything else auto

I'm also rock solit at 450 x 8 = 3.6, so I know it isn't the CPU. Could it be the FSB, or do I need to worry about the NB or RAM?

Has anyone topped 485?

-Graham
 
Yeah.....I'm definitely guessing it would be a FSB wall on your Mobo.
Be happy.

Mine keels over and dies if I go anything higher than 447.5.
As a matter of fact, most times, it doesn't even like me to try and boot past 442.

485FSB is a healthy amount of speed - exactly what purpose would it serve if the chip probably won't go much above 3600Mhz anyways?

485x8=3880Mhz which would put you near the top of all E6420's out there.
If it's the memory speed you're looking for, just use a different divider.
 
How is this thread 12 pages long and there's only like 7 of us on the e6420 section in the core2duo overclock database?
 
How is this thread 12 pages long and there's only like 7 of us on the e6420 section in the core2duo overclock database?

Maybe it's the stability factor?
I got mine to almost 3600Mhz right out of the gate, but I'm under 3500Mhz in order to get a stable setup.
 
How is this thread 12 pages long and there's only like 7 of us on the e6420 section in the core2duo overclock database?

To be fair, the chip has only been out for a month or so. It's not the fastest, or cheapest, so it's not really pulling bargain enthusiasts or the high end money is no option enthusiasts. I guess what I'm saying is, it's a great chip (although frustrating for some as we've seen) but it competes so closely with so many other chips that it doesn't have the biggest following. However, after what we've seen on this thread, I don't think anyone would argue that it is clearly the best chip money can buy for under $200.
 
Does anyone know if the e6420 has a FSB wall? My computer is currently rock solid at 485, but I can't even post at 486...which doesn't seem to make any sense.

e6420
P5k Deluxe
Ultra 120 Ex

485 x 7 = 3.395
CPUv 1.475
everything else auto

I'm also rock solit at 450 x 8 = 3.6, so I know it isn't the CPU. Could it be the FSB, or do I need to worry about the NB or RAM?

Has anyone topped 485?

-Graham

Hi Gandoron!
I would be really thankful if you could share your full settings on how you got to 3.6 on the P5K Deluxe. What's the code on your E6420, and what bios do you use on the P5K?

I'm having a really hard time getting above 3.2.
I have the follwing settings at the moment:
Bios 0311
400 x 8 = 3.2
PCI-E: 101
DRAM: 800 4-4-4-12 rest on auto
Transaction booster enabled (1)
CPU Voltage: 1.4875V
CPU Voltage Damper: Enabled
CPU PPL Voltage: 1.50V
DRAM Voltage: 2.20V
FSB Termination Voltage: 1.30V
NB Voltage: 1.40V

I did manage to boot at 6x500, but I failed when I tried again yesterday. I think I was on bios 0304 then.
I can't boot with 8x450, whatever the CPU Voltage I use though.
 
Does anyone know if the e6420 has a FSB wall? My computer is currently rock solid at 485, but I can't even post at 486...which doesn't seem to make any sense.

e6420
P5k Deluxe
Ultra 120 Ex

485 x 7 = 3.395
CPUv 1.475
everything else auto

I'm also rock solit at 450 x 8 = 3.6, so I know it isn't the CPU. Could it be the FSB, or do I need to worry about the NB or RAM?

Has anyone topped 485?

-Graham

I've seen walled CPUs and I would suppose some boards might top out - however this is usually remedied with a few things - replace the stock TIM with some AS5, stick a 50mm fan on the NB and NB voltage. I've had all my boards over 500 Mhz without a problem but I always do all of that before I even start using a board. I have seen chips hit a wall too at a certain FSB. Had a few of them that walled low using same equipment yet pushed 515 with my old 6300. Usually the walls are the CPU not the board, but like I said a few tweaks and usually you remove the NB as the limit.
 
Wow, over 3 days of downtime for the forums and it's still really slow...

Anyhow, I will be starting a list of everyone's fastest stable overclock (4 hours orthos please) on their E6420 in the first post on this thread. I will need your speed, voltage, processor code, motherboard and bios version. I will try to keep this as up to date as possible. Please post your current best following this post.

Also, I would like to put together a guide of what, if anything people find helps outside of the Conroe overclock guide.
 
Here goes......

Well, it took a little more voltage than I originally anticipated, but I finally got a nice and stable overclock to add to the database.

I hit 3.2Ghz so easily at almost stock voltage, that it took me forever to work my way up to the 1.525v that was actually needed to get her nice and solid above 3.4Ghz.


Now stable annnnnd the fastest RAM on the main board.

:D :D :D :D :D :D :D :D


User Name: Evoic
Stability: 4hours+ Small FFTs Orthos Beta

CPU: E6420 (Model L651B325)
OC: 3460Mhz
Stepping: 6 B2
Week: L651
Code: B325
Vcore: 1.525 (in BIOS)

Cooling: Air
Cooler brand/model: Scythe Mine Rev. B

Motherboard: eVGA 680i LT
Bios Version: P02
Operating System: XP Pro 32

RAM brand: OCZ Reapers
RAM rated speed: 8500
RAM actual speed: 1190Mhz
Latency: 5-5-5-12

http://valid.x86-secret.com/show_oc?id=202724
.
TheOne-cropped.jpg
 
Wow, over 3 days of downtime for the forums and it's still really slow...

Anyhow, I will be starting a list of everyone's fastest stable overclock (4 hours orthos please) on their E6420 in the first post on this thread. I will need your speed, voltage, processor code, motherboard and bios version. I will try to keep this as up to date as possible. Please post your current best following this post.

Also, I would like to put together a guide of what, if anything people find helps outside of the Conroe overclock guide.

I would make a vote that in addition to a visible window containing the 4+ hour Orthos/Dual Prime shot, that a 3dMark06 run with output visible be included to prevent people from posting systems that aren't truly stable. You might be CPU stable at 3.5, but loading up 3dMark shows you otherwise. :)
 
I would make a vote that in addition to a visible window containing the 4+ hour Orthos/Dual Prime shot, that a 3dMark06 run with output visible be included to prevent people from posting systems that aren't truly stable. You might be CPU stable at 3.5, but loading up 3dMark shows you otherwise. :)

I've never seen a system that was 4hour+ stable on Orthos, that couldn't take a run through 3dMark.

On the other hand, I've been able to completely run through a full trial assault on 3dMark, and crash with Orthos in under an hour.

I think at some point, all of these requirements are overkill.
I can boot at almost 3600Mhz on air.
I can run Super Pi at 3540Mhz.
I can run 3dMark at 3500Mhz.
I can run Orthos 4+ hours at 3460Mhz.
I can run 24/7 at 3400Ghz.......

We can go on for days.
Stick with a simple, stress-testing method, and be done with it.

.
 
I think everyone realizes we are just stress testing to see what our chips can push. Regardless of 3dmark, etc - Orthos is a good stress test for the CPU and thats all we are doing here.
 
Alright, we're sticking to 4 hours orthos. Sorry, but here at [H] it seems to be the standard cpu test. I'd love to compile something more complex, but the idea of this first page thing is to keep a record of attained cpu speeds that are reasonably stable.
 
I've never seen a system that was 4hour+ stable on Orthos, that couldn't take a run through 3dMark.
.

This is true. When I built my system, that's exactly what I did: Orthos it for 24 hours WITH 3dMark running at the same time. If it didn't pass or it crashed at any time, I didn't call my system stable.

I could OC the rig in my sig all day up to 3.6, but it'd never be 100% stable in the aforementioned scenario until dropped to 3.25GHz, and even at that I'm pretty sure it's cooling that's holding it back.
 
I'm baaaaaackk....just posted this up in the Intel OC thread.

I'm taking back the E6420 crown...for now...moving to a D-Tek Fusion this week, went from P5B Deluxe to DS3 to push higher.

User Name: dnottis
Stability: 6 Hours Orthos

CPU: E6420
OC: 3680 Mhz
Stepping: 6 B2
Week: L709
Code: A171
Vcore: 1.550 (BIOS), 1.49v actual

Cooling: Water
Cooler brand/model: Thermochill PA120.2, Swiftech Apogee, D5 Pump, MCW60, 2x 75CFM 120s @ 12v

Motherboard: Gigabyte DS3 rev.1, C1 chipset
Bios Version: F11 Bios
Operating System: Vista x64, XP SP2

RAM brand: OCZ 2GB
RAM rated speed: 8500
RAM actual speed: 920Mhz
Latency: 5-5-5-15

3680.jpg
 
I'm baaaaaackk....just posted this up in the Intel OC thread.

I'm taking back the E6420 crown...for now...moving to a D-Tek Fusion this week, went from P5B Deluxe to DS3 to push higher.

User Name: dnottis
Stability: 6 Hours Orthos

CPU: E6420
OC: 3680 Mhz
Stepping: 6 B2
Week: L709
Code: A171
Vcore: 1.550 (BIOS), 1.49v actual

Cooling: Water
Cooler brand/model: Thermochill PA120.2, Swiftech Apogee, D5 Pump, MCW60, 2x 75CFM 120s @ 12v

Motherboard: Gigabyte DS3 rev.1, C1 chipset
Bios Version: F11 Bios
Operating System: Vista x64, XP SP2

RAM brand: OCZ 2GB
RAM rated speed: 8500
RAM actual speed: 920Mhz
Latency: 5-5-5-15

Very nice overclock!
Now SOMEONE hit 3.7 already!
 
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