AMD Athlon 64 Venice Overclocking

[Kissimurra]

Hello!

I have heard that this is the best place on the internet for questions concerning overclocking so I thought I'd ust drop in!

Here comes the question, wich revision of the Venice core is best for overclocking? E3 or E6? I have seen some monstruous overclocking of the Venice cores but mine won't go higher than 2.2 Ghz.

I have an A8V Deluxe Motherboard and Corsair Value Ram. I know that my motherboard overclocks very well and I know that the Ram isnt the component wich sets the limit even if it's value ram...

So I wonder if there's any difference between Revision E3 and E6 when it comes to overclocking?

Might be worth mentioning: My Venice has the stepping (DH-)E6!

Any help would be very appreciated!

// Hjalmar Mill

 

[TecHNooB]

E3 > E6. Make sure you set the RAM divider to 333.

 

[Kissimurra]

Yes of course I have I'm not all new to overclocking you know!

So you are saying that the E3 revision is better for overclocking?

 

[cryogenic666]

well, here's my overclock on my E3 revision Venice... note that I have a crappy 20-pin PSU which is probably a limiting factor (my 12v rail is @ 11.7v, which isn't too hot)

Here's the screenshot

 

[the cobbler]

Originally posted by: Kissimurra
Yes of course I have I'm not all new to overclocking you know!

So you are saying that the E3 revision is better for overclocking?

it's absolutely night and day. E3 owns E6, most E6 are terrible clockers, you don't see too many past 2.5ghz or so and lots that hit the wall at 2.2-2.4ghz. And they usually require a good amount of voltage to even do that.

I have one of the best possible E3, an 0517APAW, that isn't really even a very good chip for the week and stepping. It runs 24/7 2700mhz @ 1.534v and is stable to ~2850 with closer to 1.7v, will do SuperPi 1M just over 2900mhz.

there are bunches of earlier E3s and random later ones that will do this or better without a sweat.

Up until the new Opties, the Venice E3 were king of the OC

 

[Kissimurra]

Thanks for the help dudes! Much appreciated!

cryogenic666, I saw that your revision was DH-E3, What does DH mean?

This is the best venice overclocking I have seen and it has the revision E3 without the DH-. Here, take a look : AMD 3000+ Venice E3

And here's my OC: AMD 3000+ Venice DH-E6

 

[the cobbler]

Originally posted by: Kissimurra
Thanks for the help dudes! Much appreciated!

cryogenic666, I saw that your revision was DH-E3, What does DH mean?

This is the best venice overclocking I have seen and it has the revision E3 without the DH-. Here, take a look : AMD 3000+ Venice E3

And here's my OC: AMD 3000+ Venice DH-E6

check this thread out at XS, the database hasn't been updated in a while, but this gives you some idea of how the earlier E3s overclocked (<week 0519). Notice how much better some of these are even than the excellent E3 example that you linked:

Venice, Stepping and OC Database from XtremeSystems.com

 

[Kissimurra]

Awww.... 3000Mhz stable, that's insane!

I'm so annoyed at my CPU, I can't get it higher than 2.2Ghz and even at 2.2Ghz it's a little bit unstable, perhaps 2-4 crashes per week.

 

[the cobbler]

Originally posted by: Kissimurra
Awww.... 3000Mhz stable, that's insane!

I'm so annoyed at my CPU, I can't get it higher than 2.2Ghz and even at 2.2Ghz it's a little bit unstable, perhaps 2-4 crashes per week.

only 1.45v?? I'd give it something closer to 1.55v and see what you come up with. I used to run my Winchester at 1.62v on stock cooling mwhahahaha, never broke 50C. If you have a crap chip, you might as well feed it some volts and see if that helps. If not ))))) EBAY!

 

[Kissimurra]

Good idea, I have never given it more than 1.475 so it might be worth a try!

Oh and here's all the numbers on my CPU:

ADA3000AA4BW
LBBWE 0530DPHW
2730776G54193

Can you tell by these numbers if it's a "good" or "bad" chip?

 

[crazylegs]

My first home build pc and overclock...

I got an E6 3000+ running VERY (*touch wood*) stable @ 2400mhz currently 300x8 so that with mem-divider in action MEM is bang on

had it just over 2500mhz stable-ish using 280x9.... but dont want to stress cpu too much

cyrogenic.... very interested in ur comment about having a ****** psu.... i also have cheap one (Q-TEC...!)with weak-ish 12v rail...11.75V
also i'm using a 20-->24V adapter to pug into my 24v m'board!!! i was on a tight budget...

neway good luck squeezing ur CPU Kissimura !!!

 

[the cobbler]

no there is no way to guarantee a chip will OC well based on stepping, but it could be okay, there have been some decent week 30 out there. don't know much about *HW stepping

only one way to find out

 

[designit]

Well i am @ 2766mhz venice 3000.
not just a screenshot, but the lowest score on planet superpi 32M, and Everest. all on 1.55 vcore and stock HSF.
I can do 2850mhz but cant pass superpi.

http://img296.imageshack.us/my.php?image=111920050831091lf.jpg

 

[Kissimurra]

Originally posted by: crazylegs
My first home build pc and overclock...

I got an E6 3000+ running VERY (*touch wood*) stable @ 2400mhz currently 300x8 so that with mem-divider in action MEM is bang on

had it just over 2500mhz stable-ish using 280x9.... but dont want to stress cpu too much

cyrogenic.... very interested in ur comment about having a ****** psu.... i also have cheap one (Q-TEC...!)with weak-ish 12v rail...11.75V
also i'm using a 20-->24V adapter to pug into my 24v m'board!!! i was on a tight budget...

neway good luck squeezing ur CPU Kissimura !!!

Thanks dude!

Hm, I have never tried to lower the multiplier, can it make a difference to have a lower multiplier and a higer htt/fsb?

Originally posted by: the cobbler
no there is no way to guarantee a chip will OC well based on stepping, but it could be okay, there have been some decent week 30 out there. don't know much about *HW stepping

only one way to find out

Yeah, I better start messing around in the BIOS again

 

[otispunkmeyer]

my E6 hits the buffers at 2600Mhz....at 1.45volts. maybe it will go abit further if i use 1.55v but ill stick with 2500mhz for now

you think if i give it more juice (upto 1.55) i might get it stable at 2.6?

 

[Regalk]

My Dh-E6 runs at 318 X 8.5 (2710) WITH MEMORY AT 333 AND 1T. 1.48v Asus A8N-E. It takes a bit of work but it is attainable. Oh using Big Typhoon for cooling.

 

[Mogadon]

Originally posted by: otispunkmeyer
my E6 hits the buffers at 2600Mhz....at 1.45volts. maybe it will go abit further if i use 1.55v but ill stick with 2500mhz for now

you think if i give it more juice (upto 1.55) i might get it stable at 2.6?

Yes, that's the whole point of upping the voltage (VCore). When you're overclock becomes unstable you can up the VCore to make it stable. There is a limit to how far you can up the VCore, if you go high enough you'll kill your chip. The generally considered safe VCore for the venice's is 1.55V, you can feel safe running this voltage and it should help your stability at higher overclocks.

Generally chips will overclock well upto a certain point and then they will need a much larger increase in VCore to become stable with a smaller increase in your overclock. For example you may be able to hit 2.6GHz on 1.5V but to hit 2.7GHz you'll need 1.65V which really makes it not worth it. Generally when you find that plateau you've found your optimal overclock.

To add, many people feel that running a venice core at 1.65V is fine whereas some feel it's risky, it's upto you if you want to do this on a permanent basis but temporarily is definitely fine to run your chip at 1.65V to find it's max overclock at that voltage and then drop it back down again to 1.55V. If you feel the $150 odd for the chip is not that much then you may as well run it at 1.65V and if it dies get another one ... .

Just don't bother going above 1.7V though as your chip will almost definitely die relatively quickly.

edit - of course CPU temperatures are important too and having good cooling is important. If your CPU temperatures are getting above 55C then you probably don't want to up the VCore any more.

 

[cryogenic666]

I wish I would have written down what stepping mine was.... all I remember is that it's a wk5 CPU. I don't remember whether it's an LBBLE or a CBBLE and whether it's DPAW, EPAW or whatever. I'm not about to yank off the HSF and scratch off the AS5 to find out, either. Too bad there's no way to find out without actually looking at the CPU. Also, I noticed that Regalk has the same board I do (A8N-E) and can get all the way up to 318FSB. Mine craps out @ 250. The only thing I can think of is either a) my board and CPU just are terrible clockers or b) my PSU, despite being a decent Antec, just doesn't have the juice. I've got another PSU on the way so we'll see how that helps things.

 

[Kissimurra]

Thanks for all the feedback and help dudes!

I must say that I'm surprised that some E6 go t like 2.4-2.6 GHz stable. As I said my CPU reaches it's limit at 2.2Ghz wich is kinda bad. Even at 2.2Ghz I have crashes now and then. I have 520W PSU so that should not be a problem either.

I'll try to give it some more Voltage and mess around in the BIOS,

_______________________________________________
EDIT: Im running it at 2295 Mhz 9x255 1.55Vcore.

Memory: 328 Mhz effective

Hyper transport: 767 Mhz

Idle temperature: 30C

Load temperature while running Prime95 for 10min : 42C

_______________________________________________

EDIT: Im running it at 2386 Mhz 9x265 1.55Vcore.

Memory: 434 Mhz effective (changed the ratio)

Hyper transport: 1067Mhz (chnged the ratio)

Idle temperature: 32C

Load temperature while running Prime95 for 10min : 45C

This is very wierd, this configuration runs perfectly stable! But if I change the FSB to 267Mhz so that I achieve 2400Mhz it gets totally unstable and crashes after like 5 minutes in Windows :S