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Overclocking my Phenom II X6 1090T Black Edition

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3.8 GHz @ Vcore = 1.4125 V, eight hours stable running custom P95 with 14 GB of RAM.

Here are used the BIOS/UEFI settings (some of which may not be relevant but I included just in case):

Spread Spectrum - Auto
IO C-State Support - Enabled (Had this confused with C1E in a previous post)
Turbo Core Technology - Disabled
CPU Voltage Offset - Auto
NB Voltage - Auto
HT Voltage - Auto
Cool'n'Quiet - Enabled (Although the BIOS/UEFI claims that using the manual OC mode automatically disables this)
Enchanced Halt State (C1E) - Disabled
Secure Virtual Machine - Enabled


  • OC_3800_1_4125V_RAM_1600_NO_TC_NB2200_8h.png
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I bumped both the CPU-NB and HT from 2200 MHz to 2400 MHz some time ago. This didn't really affect the temperatures, since I didn't touch the voltages, and the system still seems to be stable. Four hours of Prime95:


  • OC_3800_1_4125V_RAM_1600_NO_TC_NB2400_4h.png
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That reading of 52 MHz is weird, I don't think I've seen that before on my system. I didn't notice when it happened, but I never noticed any throttling during the Prime95 run.