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OverClocking Unlocked Athlon II X3 440

post #1 of 64
5/4/11 at 7:33pm
Thread Starter 
Hi All!

I'm new to this forum and even newer to overclocking.
This is my first system built from scratch so I just aimed for a budget build.

I unlocked the 4th core and now ready to overclock.
I was able to go 3.6GHz with only 3-cores but when I attempted to do the same settings for 4-cores, it failed.

By the way, I tested stability for unlocked core with prime95 blend test for 3hrs.

Thanks for the help!

PS. I don't know how to post pics, lol, can somebody show me.
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post #2 of 64
5/4/11 at 7:58pm
The Athlon II's tend to max out at 3.4-3.6 ghz with 4 cores - 3.5+ generally taking a big volt jump. I can pull off 3501 mhz with ~1.48v

I also can get 3.6 with 3 cores, and if I tried harder maybe 3.9-4.0 with 2 cores - but cores are more valuable than a few mhz. The Athlon II series isn't all that amazing for OC'ing. Way too power hungry for poor returns.

I'd aim for around 3.4 with a decent voltage.
AMD, I give up.
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AMD, I give up.
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post #3 of 64
5/4/11 at 8:32pm
Thread Starter 
Hi Nugu,

Thanks for the reply. I need more specifics since I'm new at this thing.
I may settle at 3.5 GHz as you said, but how do you know which is better? X3@3.8GHz or X4@3.5GHz?

I need specifics like Ref Clock, HT Speed, NB Speed and RAM Divider.
I don't like touching the voltages, still a bit scared, hehe..

For the RAM timings, I found it odd that my X3 was stable for 6-6-6-17-23 rather than 9-9-9-25-34.

Can you please show me how to post pics, so I can attach CPUz.

Thanks!
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post #4 of 64
5/4/11 at 11:52pm
with cpuz, use the validate button
you dont need to give your email, just post the link
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post #5 of 64
5/5/11 at 2:23am
Thread Starter 
Thanks ffejrxx!

Here is the link for my CPUz:
http://valid.canardpc.com/show_oc.php?id=1803167
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post #6 of 64
5/5/11 at 3:52am
your cpu unlocked is about 95w

i wouldnt overclock it on that board, 95w limit without mosfet/vrm cooling
http://www.overclock.net/amd-motherb...l#post12462681

get a heatsink kit for it
http://www.newegg.com/Product/Produc...82E16835708011
http://www.newegg.com/Product/Produc...82E16835108071
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post #7 of 64
5/5/11 at 6:33am
Thread Starter 
Hmm, this is the first time I encountered heatsink for mosfet.
I didn't know this was needed.

Just out of curiosity, this heatsink is for the motherboard right?
In HWMonitor, is TEMPIN2 the motherboard temperature?
When I do prime95 blend test it goes to about 43degC.
Is that safe?
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post #8 of 64
5/5/11 at 10:22am
the mobo temp is normally south bridge
they dont put temp sensors on the mosfets

this is kinda how it should look with the heatsinks
http://www.overclock.net/attachments...-cooling-1.jpg
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post #9 of 64
5/6/11 at 4:31pm
Thread Starter 
I see. So I may risk my motherboard if I overclock without these heatsink?
Unfortunately, these kinds of heatsink for MoBo are not easy to find here.

What are the drawbacks if I overclock without them?
I will have to check the operating temp of my MoBo.

Thanks man.
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post #10 of 64
5/6/11 at 4:36pm
Quote:
Originally Posted by eduforonda View Post
I see. So I may risk my motherboard if I overclock without these heatsink?
Unfortunately, these kinds of heatsink for MoBo are not easy to find here.

What are the drawbacks if I overclock without them?
I will have to check the operating temp of my MoBo.

Thanks man.
I see you have an MSI board. MSI boards are most known to fail to do blown VRM/MOFSETs. MSI offers no VRM protection in case of failure/overheating of the VRM/MOFSETs. I wouldn't proceed without those heatsinks especially since it is an MSI board. If it were a different brand like Asus I wouldn't worry as much as Asus offers VRM protection and will shut down the board if a failure was going to happen.
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