DRAM and NB frequency questions and how to set them properly in BIOS

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cwburns32

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Jul 30, 2014
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Okay I have 3 builds currently...

Build 1
W7 HP 64-bit SP1 w/ AMD A8-6600K Richland, Vengeance Pro series 1866 DDR3 RAM and MSI A78M-E45 mobo.

Build 2
W7 HP 64-bit SP1 w/ AMD A8-7600 Kaveri, G.Skill Ares series 2133 DDR3 RAM and MSI A78M-E45 mobo.

Build 3
W7 HP 64-bit SP1 w/ AMD FX-8320 Vishera, Patriot Viper 3 series 1866 DDR3 RAM and Asus M5A99X Evo mobo.

I believe I have my first 2 builds set properly to their max settings (please see images below to verify).

FamilyPCsetto1866_zps09638552.png


JaePCsetto2133inBIOS_zpsad31e381.png


I for whatever reason cannot get my 3rd build to run my RAM at 1866. It defaults to 1333 and if I try to change in BIOS it tells me OC failed and to rerun setup. However I am not OC'ing at all and the RAM is 1866 and the mobo supports that speed natively.

I originally had the speeds working properly I believe...

MyPCsetto1866_zps3279d5e9.png


but now am stuck at 1333 speeds.

Any help would be great!
 
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cwburns32

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Jul 30, 2014
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I went back into BIOS noticed the latency values were all off as opposed to what my memory module were supposed to be at at DDR3-1866. After upadting it to 9-10-9-27. The voltage was set to 1.506 and CPU/NB voltage to 1.35. I did not need to enter anything else. Upon reboot I believe I have the proper speeds from my RAM although cycle time (tRas) is still at 24 clocks and not 27 and CAS latency (CL) is 10 instead of 9. Also it appears my CPU is now overclocked by about 5.7%.

UpdatedBIOS_zpsac6cc7bc.png


CPU_zps8d1ccccf.png
 
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C

cwburns32

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Jul 30, 2014
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Yes, it appears that my RAM speeds are back to where they should be but any idea of why those 2 values would be off from what they are supposed to be at that speed? And any idea why my CPU would be slightly overclocked? It was running at 3.5 before now at 3.71.

EDIT: As you can see from my original post the third image shows the correct RAM speeds and the correct values 9-10-9-27.... I do not know how I came about these values and cannot seem to get them back. My most recent post the image shows the correct RAM speed but 10-10-9-24.
 
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