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Want to overclock to 4ghz

post #1 of 20
Thread Starter 
Ok, new to here. Basically I just built my new system, an AMD 6-Core 3.2. What I want to know is where to start with an overclock? I'm aiming for 4ghz on the CPU. This will be the first time I have ever overclocked a system although I have been working with computers for quite some years. My CPU is black edition and I should just be able to play with the multiplier right?? But when I up it past 3.4ghz I get a blue screen when i put the system under load. Any suggestions?

Thanks in advance.
    
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post #2 of 20
Welcome to OCN!

Have you bumped the voltage any? Get a good cooler (anything above $40) and add some voltage, no more than a total of 1.55 for 24/7. Also stress test it for a couple hours on prime95 to make sure it is stable. The BSOD is caused by instability.
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post #3 of 20
Thread Starter 
Thanks for the reply. Put the voltage to 1.475 and running at 4018mhz no worries, except maybe the temp... I ran OCCT (assuming this is same as prime95) for only a few minutes and it was hovering around 59c before I got scared and stopped it. Previously it never passed 51. The max temp for my CPU according to the AMD website is 62c, is that ment to be the maximum safe temp, or the temp where your gonna start doing damage?
    
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post #4 of 20
Instead of using just the multiplier, use a combination of ref clock and cpu multiplier. example, multi 18 x ref clk 224 ~ 4GHz or 17.5 x 230 ~ 4GHz (Some cpus dont take a multi more than 17.5 kindly, they just dont wanna work. If that happens with you then use the 17.5 multiplier) A 4GHZ oc can be achieved by 1.42 - 1.5V, depends upon your chip and mobo, So set the voltage accordingly. Also remember to oc your cpu-nb to get more outta your ram and cache memory. take the cpu-nb to somewhere around 2500/2600mhz. use a cpu-nb voltage of 1.25-1.3v.

Its quite natural to have a load temp of 60+c on air, when you oc your cpu that much. No, it wont damage the chip but its definitely adviced to stay below 60c. To use a huge oc like that for 24/7 use, you have to buy either a top-end air cooler or WC-setup.
Edited by leopold1985 - 1/27/11 at 5:27pm
    
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post #5 of 20
Quote:
Originally Posted by dave85 View Post
Thanks for the reply. Put the voltage to 1.475 and running at 4018mhz no worries, except maybe the temp... I ran OCCT (assuming this is same as prime95) for only a few minutes and it was hovering around 59c before I got scared and stopped it. Previously it never passed 51. The max temp for my CPU according to the AMD website is 62c, is that ment to be the maximum safe temp, or the temp where your gonna start doing damage?
The CPU will shut down if it exceeds the max spec temp.
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post #6 of 20
Also, try not to exceed 1.5v on a Hex core. Especially with that motherboard. Kaboom!
post #7 of 20
Thread Starter 
Quote:
Originally Posted by railfan844 View Post
The CPU will shut down if it exceeds the max spec temp.
Shut down causing damage??? Or is this a safeguard to prevent damage?
    
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post #8 of 20
Quote:
Shut down causing damage??? Or is this a safeguard to prevent damage?
Usually you can select a shut down temp in the Bios, not sure if it will shut down automatically. It will usually reboot though if it gets unstable.
post #9 of 20
Perhaps a heat sink on the VRM's would help?
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post #10 of 20
Quote:
Perhaps a heat sink on the VRM's would help?
I would almost say that is a must if you wanna pump anywhere near 1.5v through that board. Kaboom!

Ive heard these are a good product.

http://www.newegg.com/Product/Produc...-011-_-Product
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