X99M Extreme 4 - Xeon > 103mhz BCLK OC

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   PCIe, RAM and PCH (chipset) mostly.
I tried to find a decent diagram that lays out what effect BCLK has on Haswell and Broadwell-EP but I can't seem to find the one I referenced a few years back anymore.

Again, voltage adjustment is a long shot 

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Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 25028	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Topic: X99M Extreme 4 - Xeon > 103mhz BCLK OC Posted: 05 Jan 2017 at 1:37am
	PCIe, RAM and PCH (chipset) mostly. I tried to find a decent diagram that lays out what effect BCLK has on Haswell and Broadwell-EP but I can't seem to find the one I referenced a few years back anymore. Again, voltage adjustment is a long shot


mer Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2017 Status: Offline Points: 4	Post Options Post Reply Quote mer Report Post Thanks(0) Quote Reply Posted: 05 Jan 2017 at 1:01am
	What would be the primary components to fail at more than 103mhz ? I know this is a vague question. I only run a PCIE AMD radeon on the system and an m2 . I could give the system a try with higher voltage agents. I dont mind playing with the voltages a bit :)

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 25028	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 05 Jan 2017 at 12:55am
	Not really sadly. Haswell-EP and Broadwell-EP CPUs do not have unlinked BCLK like Skylake or Kaby Lake so the instability comes from other components being effected by the raised BCLK such as PCIe. The only things you can try are voltage tweaks for your VCCIO VCCSA, PCIe, system agent etc. If there is a voltage setting google it to see what it is for and if upping it can increase stability. I doubt it will make any difference but if you are determined to try then be sure to double check everything via research before proceeding. Adjusting the wrong voltage or adjusting too high can fry your system. Personally I wouldn't recommend it. Let us know how it goes if you do try though


mer Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2017 Status: Offline Points: 4	Post Options Post Reply Quote mer Report Post Thanks(0) Quote Reply Posted: 05 Jan 2017 at 12:48am
	Hi is there anything I can do to try to get more than 103mhz stable BCLK OC on a xeon v4 on the x99m ex4 ? Many thanks, Konstantinos