Again I have reason to believe that core control isn't locked to the actual core but just a random core. I've played with the ACC + and - % and I noticed no difference with the weak core. Using latest Bios F5 and have tested F6a in hopes better control, no luckĮdit, here are some screen shots showing the weak core being addressed as different cores when I start and stop the testing.Ī simple stop and start it now shows as core 2Īfter 45 minutes of testing, the weak core makes its rounds (min reading)

IT seems like the cores float, not addressed to the correct cores. In a future bios update can you add core 0, core 1, along with the present core 2 and core 3 or if possible map core 2 and core 3 to the disabled cores so we can actually disable one of the weak ones. When I go into the bios and set disable core 2 or core 3 or(both at the same time) with hybrid enabled I still get a hit and miss on boot up(crashes). It seems that the cores rotate during boot and when you stop and start stability test, as when I start and stop the test, the weak core appears to rotate. It has an impressive array of options and tweaks from fan monitor, voltages, frequency buses, the ability to change the CPU clock speed, multipliers and voltages for the CPU, Memory and HT technology. I am able to pass the stress test if I do the overclocking on the AMD Overdrive application but when I reset my machine I get an Overclock not successful. I believe this is due to the weaker core. AMD Overdrive It provides an extensive toolset to modify your system from the comfort of your windows desktop. Have tried half an hr of AMD Overdrive stability test as well as Prime 95, with the CPU Temp rarely reaching 50C. Sometimes it takes 20 reboots or more to finally get past the windows 7 boot screen without a crash. From the voltage area, you can increase the value of CPU Vid. Click Turbo Core Control and then uncheck Enable Turbo Core and click OK. You only have to focus on CPU Core 0 Multiplier on Clock area and CPU Vid on Voltage area.

I have used the AMD OverDrive stability test and have noticed that one core reports half the value of the other 3. Open AMD Overdrive, under performance control go to Clock/Voltage menu. It seems that 1 of my 2 disabled cores is a little weak.

Amd overdrive stability test