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OverClocking Unlocked Athlon II X3 440 - Page 4

post #31 of 64
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Quote:
Originally Posted by xd_1771 View Post
To be honest I wouldn't proceed at all. Many MSI boards will fail despite VRM cooling. Moreso if they don't. An unlocked Athlon II x3 -> x4 will add TDP and will consume 125W without any overclock. The athlon II x3 is binned somewhat differently, so the Athlon II x3 may very well consume more power, unlocked, as the equivalent Athlon II x4. MSI lower-end AM3 boards fail very often, even at stock speed, on 125W processors of any sort. The only MSI boards that don't fail so often are the DrMOS boards (usually only give at high high voltage & OC) and the new 8+2 designs.

This is my advice, no need to take it, you may end up fine if you keep the voltage values low. But do know what you are risking by doing this and who is responsible in the end (not us).

Don't trust HWMonitor's software readings on wattage, they are not accurate in any way.
Thanks for the input man. Really appreciate it.
Guess it was a wrong decision to go MSI, they got with the marketing strategy of "Military Class Concept" with Icy Choke and Solid Capacitors.

I may try undervolting as pioneerisloud said.

Anyway, what software do you recommend to monitor these stuff?

Thanks!
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post #32 of 64
Eh, there's a lot of marketing BS that people are believing in. i.e. "Intel P55 ready" RAM kits that are not rated AMD-compatible are for P55 ONLY and not AMD - the only kits companies are rating AMD-compatible are crummy and overpriced ones. G.Skill Flare is a very notorious example.

HWMonitor is actually pretty good, but take the "wattage reading" they provide with a huge grain of salt of course.
Edited by xd_1771 - 5/7/11 at 8:11pm
post #33 of 64
There is most definitely a ton of marketing garbage out there, so you do have to keep your eyes peeled for it.

Given that you're on an Athlon II x3, unlocked to an Athlon II x4 (no L3 cache), then I seriously doubt you're going to damage the board any with a light overclock. Your board, definitely isn't the greatest out there. But it'll handle the Athlon chips just fine. Just keep your vcore as low as possible (I definitely wouldn't EVER pass 1.45v), and you'll more than likely be just fine.

XD, do you honestly believe than an Athlon II x4 is going to hurt his board any with such a mild overclock? It's not like he's shooting for 3.7-3.8 stable or higher, with a ton of vcore. He's barely using over stock vcore as is.
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post #34 of 64
AMD has some weird power binning going on. If the Athlon II x3 unlocked to a 95W TDP processor at the same stock speed, then I would expect Athlon II x3's stock TDP to be rated at 80W. For there to be no heat addon & power requirement addon makes absolutely no sense.

As I am saying, this could be very dangerous. The VRMs are unheatsinked, and an aftermarket CPU cooling is being used; the VRMs get zero cooling to boot. With a processor risky of having such high TDP and the long MSI rap sheet of failures, this is suicide.
post #35 of 64
Quote:
Originally Posted by xd_1771 View Post
AMD has some weird power binning going on. If the Athlon II x3 unlocked to a 95W TDP processor at the same stock speed, then I would expect Athlon II x3's stock TDP to be rated at 80W. For there to be no heat addon & power requirement addon makes absolutely no sense.

As I am saying, this could be very dangerous. The VRMs are unheatsinked, and an aftermarket CPU cooling is being used; the VRMs get zero cooling to boot. With a processor risky of having such high TDP and the long MSI rap sheet of failures, this is suicide.
Ever stop to think that maybe, just MAYBE the tri core's are still pulling the same power as the quad, due to all 4 cores still getting power. They're just locked from doing anything? Just a thought. I honestly don't know exactly how the locking and unlocking process works.

And while I do agree that MSI boards are definitely nothing great except for a few of them, most of that MSI rap sheet has to do with high clocks on 125w quads, and Thuban x6 chips. I very highly doubt that Athlon x3 is going to be pulling that kind of power, unlock or not.

It's ultimately up to the OP to decide what he's comfortable with. A 3.3GHz overclock, I can almost guarantee is going to be possible with less than 1.30v unless his fourth core is really bad.
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post #36 of 64
By that logic, the Phenom II x2 should be rated 125W already, not 80W.

Where lower end MSI boards are concerned the situation is more mixed. You have Thubans, then you start seeing more 125W Phenom II x4s. There are even a couple of 95W Athlon II x4s on there (though let us assume that for the sake of this discussion, that was just pure bad luck)

I can see how the overclock would be significantly more safe if the voltage is lowered, definitely. I believe stock is 1.3-1.35V or so on these chips on a C3 revision
post #37 of 64
I already put my 2 cents into this earlier, but:

If you feel that 1.4v is going to be your "safe spot" then there's no need to undervolt as suggested unless you are only shooting for a 3.3GHz overclock, in which case you should undervolt until you reach the minimum stable voltage for the 3.3GHz.

If you want to get the maximum overclock you can at your "safe spot" (1.4v) then just simply leave the voltage at 1.4v and overclock 100MHz at a time. ie, 3.3GHz > 3.4GHz > 3.5GHz, and eventually you'll increase it by 100MHz and it will no longer be stable with your 1.4v. At which time, you can go back to the previous stable overclock and keep it with 1.4v.

If you decide to use a higher/lower voltage then just do the same thing with that voltage.

You should be very aware of the MSI suckage by now as it's been mentioned over and over again, so choose your "safe" voltage with care. Even if pioneer is right about the unlocked Athlon X3 not pulling anymore wattage than a regular X4, you have to ask yourself a question: Do you want to risk it? My answer would be no. I would choose the safe voltage of 1.4v and possibly even add some heatsinks for extra care.
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post #38 of 64
Adding clock speed can also add TDP in the same way as adding voltage. The safe spot is his/her decision, but that does not necessarily mean it is actually safe.
post #39 of 64
Quote:
Originally Posted by xd_1771 View Post
Adding clock speed can also add TDP in the same way as adding voltage. The safe spot is his/her decision, but that does not necessarily mean it is actually safe.
Intresting.. I didn't know this so I decided to look around. I came up with this:

Quote:
Originally Posted by Wikipedia
Model/Core/Clock Speed/Thermal Design Power/TDP to Clock Speed Ratio (W/GHz)

Athlon II X3 440/Rana (45 nm)/3.0 GHz /95 W/31.66
This is the X3 version but still.. It would seem for every 1GHZ the TDP is increased by 31.66W. So, for every 100MHz it would increase by 3.166W. Of course this is without a voltage change and only a frequency change.

Interesting!

And please correct me if that's way wrong xd.
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post #40 of 64
Athlon ii are pretty good OC'ers, given the right bios settings.
-Since it's unlocked, be sure to uncheck CoolnQuiet in the bios as that sometimes causes stability problems.
-When unlocked, enter the bios and adjust the clocks for each independent core via ACC. Set it to "manual" instead of auto, and raises the clocks of each core by increments of 2%. You may be able to hit 3.6 on the first 4 core and a lower clock on the unlocked core.
-Be sure to adjust the cpu voltage accordingly, unlocked core may require more voltage.
    
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