Asus CM1831 with AMD 8120

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Asus CM1831 with AMD 8120

Postby Z315 » Mon Aug 03, 2015 11:46 am

Hello!

This will be my very first attempt to overclock a computer. I have a few upgrades on this computer including a new heatsink, video card and power supply. However I wasn't very successful at finding information that caters to this AMD chipset exactly and would like a little more guidance.

Any help is greatly appreciated.

Currently CPU and Ram is all stock.
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Re: Asus CM1831 with AMD 8120

Postby Karlsweldt » Mon Aug 03, 2015 3:32 pm

There are more factors to successfully over-clocking a system than just increasing the CPU speed. Main memory speed is also a critical factor. So too the cache memory in the CPU die. Go beyond the maximum ratings, and the system may just do reboot loops or fail to boot entirely. CPU core voltage should not be increased more than the design limit.
Post full details of your system, especially brand and type of main memory.
http://www.overclockers.com/ may have some hints..
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Re: Asus CM1831 with AMD 8120

Postby evasive » Mon Aug 03, 2015 11:49 pm

https://www.asus.com/Tower-PCs/CM1831/
AMD 760G


https://en.wikipedia.org/wiki/AMD_700_c ... eries#760G

some hints on improving the performance:
http://forum.cockos.com/showthread.php?t=118523

It seems that the bios on that board is locked so no verclock settings, however, they should be able to tell you at overclockers.com
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Re: Asus CM1831 with AMD 8120

Postby Z315 » Sun Aug 16, 2015 8:32 pm

Here are the exact specs of the computer.

Processor: AMD FX(tx) 8120 Eight- Core Processor at 3.10 GHz

Ram(8.GB) running on a 64 big Windows 7 System

Power Supply

Upgraded Cooler Master CPU fan.

Nvidia Geforce GTX660

Corsair TX750 Power Supply

I read the links and attempted to follow their instructions. It appears that my BIOS set up does not have the settings they are referring to in Advance, there was no 'turbo mode' and there were no way to change the voltages in my BIOS option. Is there something I need to 'unlock' to have access to these options?

Accoring to the BIO i have CM1831 BIOS setup version 0903
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Re: Asus CM1831 with AMD 8120

Postby Karlsweldt » Mon Aug 17, 2015 3:02 pm

If the BIOS features do not compare to what is recommended, then possibly a custom-made BIOS program is needed. But that may cause the motherboard to become a skeet target.
It is not recommended to increase voltages on a CPU, as rapid overheating may occur. And since the memory controller feature is on the CPU die, it and memory modules may be damaged by higher than design maximum voltages.
Increasing the base FSB frequency may work, but the interleave of bus frequencies has to be at a specific ratio.
There is a 'back-side' bus frequency for the CPU cache memory, and the regular 'front-side' bus frequency. Then the device card PCI bus and PCI-E bus frequencies are different. All must be in proper aspect ratio for stability.
Reference to PC bus frequencies: https://en.wikipedia.org/wiki/Front-side_bus
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