CPU OC down clocking?
CPU OC down clocking?
I observed an unusual behavior with my CPU over clock. Despite having a stable 6850k at 4.3ghz in BIOS, the Prime 95 CPUZ used showed all cores at 4299mhz under full load for eight hours. This performance has been consistent for four months now.
I upgraded my case, relocated all components to the new setup (including moving the CPU cooler and motherboard together without disassembly) and upgraded the PSU from a Cougar 1200 watt to an EVGA 1200 watt unit. Everything is functioning properly, maintaining smooth 3 mark scores.
However, monitoring tools like CPU-Z, HWMonitor, and 3DMark still display CPU speeds ranging between 4211 and 4235, depending on the application. When I increased the clock by 100 mhz to 4.4, applications reported speeds from 4311 to 4335, consistently slower than the BIOS multiplier by 60 to 90 mhz.
I reset the BIOS settings, removed the battery for ten minutes, and even tried disabling the RAM XMP profile to check clock speeds—still encountering the same issue.
It seems to be a minor curiosity rather than a major problem. Any suggestions on what might be causing this?
Mateu observed an unusual behavior with his CPU over clock. Despite a stable 6850k at 4.3ghz OC in BIOS, the Prime 95 CPU showed all cores at 4299mhz under full load for eight hours. After upgrading the case and moving components, along with replacing the PSU, everything functioned normally with consistent performance. However, monitoring tools still displayed CPU speeds ranging from 4211 to 4235, which is slower than the BIOS multiplier by 60 to 90 mhz. Resetting the BIOS defaults helped.
it seems the software isn't interpreting the clocks correctly.
Mateu observed an unusual behavior with his CPU over clock. Despite a stable 4.3ghz OC in the BIOS for his 6850k, the Prime 95 CPU showed all cores at 4299mhz under full load for eight hours. After upgrading the case and moving components, along with replacing the PSU from a Cougar 1200 to an EVGA 1200, everything functioned well with consistent performance.
CPU speed readings from cpuz, hwmonitor, and 3DMark ranged between 4211 and 4235, depending on the application. Raising the clock by 100mhz to 4.4 resulted in speeds of 4311 to 4335, consistently slower than the BIOS multiplier by 60 to 90mhz.
Tried resetting BIOS defaults, disconnecting the battery for ten minutes, and disabling the XMP profile for RAM. The issue persisted but remained a minor curiosity.
Sometimes applications fail to capture accurate data, leading to incorrect readings. Using Intel Extreme Tuning Utility helped monitor temperatures and usage, proving reliable—especially when using Prime.
PC-4LIFE :
Mateu :
I observed an unusual behavior with my CPU over clock. Previously, my 6850k was stable at 4.3ghz in BIOS. After an 8-hour Prime 95 stable cpuz test, all cores were running at 4299mhz under full load. That worked well for about four months.
Then I upgraded the case, relocated all parts to the new one (including CPU cooler and motherboard without taking it apart), and switched the PSU from a Cougar 1200 watt to an EVGA 1200 watt unit. Everything functions normally, maintaining consistent 3 mark scores.
However, monitoring tools like cpuz, HWmonitor, and even 3dMark still display CPU speeds between 4211 and 4235, depending on the application. The same issue persists when I increase the clock by 100 mhz to 4.4, with applications reporting 4311 to 4335—consistently slower than the BIOS multiplier by 60 to 90 mhz.
I reset the BIOS defaults, removed the battery for 10 minutes, and even tried disabling the RAM XMP profile to check clock speeds, but the problem remains unchanged.
It seems like a minor quirk rather than a major concern. Any suggestions on what might be causing this?
Sometimes applications struggle to fetch accurate data, leading to incorrect readings.
Using Intel Extreme Tuning Utility has proven reliable for monitoring temperatures and usage. It does show 4.3 during Prime95 tests.
Interesting that cpuz, HWmonitor, and 3dMark reported the correct OC during stress tests for months, yet only provided lower speeds (60-90 mhz) immediately after I changed my components and PSU.