Can i overclock my cpu and mobo to use 1866mhz ram?

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duwls284

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Jul 7, 2015
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Hello, I have a g3258, a b85m-ds3h mobo, 4gb (about to get 8gb) ripjaws 1866mhz cl9 ram, gtx 750 ti FTW,1tb HDD, 430w evga PSU, and an enermax thorex case. It shows that my mobo only supports 1600/1333 and my CPU only supports 1333mhz, is that overclockable to support 1866mhz dual channel? And I'm gonna over clock my CPU to 4.0ghz with stock cooler and 1 exhaust, can my other components get too hot and get damaged if not properly cooled? (Btw I know it will down clock my ram to 1333mhz, but that keeps it more cool right?) So is that true? But if it isn't, I can probably reach 4.0 with 70° under load because it is pretty cool over here. Thank you for your time. :)
 
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Vitric9
Technically Intel B85 Chipset only supports Memory speeds of 1333MHz and 1600MHz, If you have bought a memory kit with an OC profile or XMP profile there is a chance the UEFI will not recognize the XMP profile. One way to check is set a speed of 1866MHz in UEFI and then check the timings after rebooting , in the UEFI.
Changing Memory speeds can have minimal overall impact on performance and thermals (1333 to 1866) with a Haswell CPU. The cheaper or lower end motherboard with a poor VRM and power design is more likely to have the components overheat due to overclocking. Not saying that your MB is poor quality, Gigabyte is solid. With that you should be able to get 4.0GHz with no issues and stay below 70°C . Possibly below the B85...
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Vitric9

Vitric9

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Jan 26, 2014
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Technically Intel B85 Chipset only supports Memory speeds of 1333MHz and 1600MHz, If you have bought a memory kit with an OC profile or XMP profile there is a chance the UEFI will not recognize the XMP profile. One way to check is set a speed of 1866MHz in UEFI and then check the timings after rebooting , in the UEFI.
Changing Memory speeds can have minimal overall impact on performance and thermals (1333 to 1866) with a Haswell CPU. The cheaper or lower end motherboard with a poor VRM and power design is more likely to have the components overheat due to overclocking. Not saying that your MB is poor quality, Gigabyte is solid. With that you should be able to get 4.0GHz with no issues and stay below 70°C . Possibly below the B85 D3H maximum vcore setting of 1.2v
I have read that Intel can perform better at the stock 1600MHz in many scenarios.
 
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