Hello guys,
I have never overclocked, but ever since I discovered Folding@Home I decided to overclock my Core i5 2500k to squeeze extra folding out of it. I followed some core i5 OC'ing guides without success. Here's a summary of my situation:
What I want: Cores work at 4.7 Ghz or so all the time while folding.
What actually happens: Cores crank up to a x39 multiplier in the first minute or so of folding, then go back to x33 and stay there indefinitely. After messing with the mobo's settings the Core will stay at x16 rather than x33 -.-. This also happens with Prime95 testing.
Help me solve this conundrum and I will gladly change my folding team to Tom's Hardware. thumb.gif
My Setup:
Core i5 2500k
Cooler Master Hyper 212 Plus heatsink
ECS GeForce GTX 560
Intel DZ68DB motherboard with latest BIOS
Corsair 500W Builder Series V2 PSU
I use CPUID 1.59 to monitor the current multiplier, and PC Wizard 2010 to monitor temperatures and core activity.
Overclocking guides I saw tell me to put the QPI ratio at lowest and disable things such as Spread Spectrum, C1E Support, Limit CPUID Max, EIST, and Intel Speedstep, while enabling Load-line Calibration, Intel PLL Overvoltage and Intel Turbo Boost. However, out of all these options I only managed to find and disable Processor C-states, Speedstep and Turbo Boost, and if I try to disable Speedstep it tells me I must have it enabled for the Turbo Boost technology to work and thereby be able to change the max multiplier.
Here's my current settings in the "Processor overrrides" section:
CPU Voltage Override Type: Dynamic (can choose Static or None, I tried putting it static at 1.350V but this is causing the processor to work at x16 rather than x33 as mentioned above)
Processor Core Voltage Offset: 0.000
Max non-turbo Ratio: 33 (if I change this, it reverts back to 33 automatically)
Processor Idle State: High-Performance
Turbo Boost: Enabled (must do so to be able to change multipliers):
TDC current limit overrride (Amps): 97
- Burst Mode Power Limit (Watts): 150
Sustained Mode Time (seconds): 32 (this is the maximum value it allowed me)
Sustained Mode Power Limit (Watts): 150
IGD Current Limit (Amps): 32
Active Core-based Ratio Limits: Disable (while disabled it applies the multiplier I choose to all cores; when enabled I can choose separate multipliers for each core.)
Ratio Limit: 47
I have not messed with the Amps values, only Watts (they were originally somewhat lower than 150).
The "Burst Mode" and "Sustained Mode" are described in the BIOS as temporary states. Is there no way to make the Turbo multiplier work all the time? It certainly should, since folding uses all cores at 100% all the time.
Thanks!
I have never overclocked, but ever since I discovered Folding@Home I decided to overclock my Core i5 2500k to squeeze extra folding out of it. I followed some core i5 OC'ing guides without success. Here's a summary of my situation:
What I want: Cores work at 4.7 Ghz or so all the time while folding.
What actually happens: Cores crank up to a x39 multiplier in the first minute or so of folding, then go back to x33 and stay there indefinitely. After messing with the mobo's settings the Core will stay at x16 rather than x33 -.-. This also happens with Prime95 testing.
Help me solve this conundrum and I will gladly change my folding team to Tom's Hardware. thumb.gif
My Setup:
Core i5 2500k
Cooler Master Hyper 212 Plus heatsink
ECS GeForce GTX 560
Intel DZ68DB motherboard with latest BIOS
Corsair 500W Builder Series V2 PSU
I use CPUID 1.59 to monitor the current multiplier, and PC Wizard 2010 to monitor temperatures and core activity.
Overclocking guides I saw tell me to put the QPI ratio at lowest and disable things such as Spread Spectrum, C1E Support, Limit CPUID Max, EIST, and Intel Speedstep, while enabling Load-line Calibration, Intel PLL Overvoltage and Intel Turbo Boost. However, out of all these options I only managed to find and disable Processor C-states, Speedstep and Turbo Boost, and if I try to disable Speedstep it tells me I must have it enabled for the Turbo Boost technology to work and thereby be able to change the max multiplier.
Here's my current settings in the "Processor overrrides" section:
CPU Voltage Override Type: Dynamic (can choose Static or None, I tried putting it static at 1.350V but this is causing the processor to work at x16 rather than x33 as mentioned above)
Processor Core Voltage Offset: 0.000
Max non-turbo Ratio: 33 (if I change this, it reverts back to 33 automatically)
Processor Idle State: High-Performance
Turbo Boost: Enabled (must do so to be able to change multipliers):
TDC current limit overrride (Amps): 97
- Burst Mode Power Limit (Watts): 150
Sustained Mode Time (seconds): 32 (this is the maximum value it allowed me)
Sustained Mode Power Limit (Watts): 150
IGD Current Limit (Amps): 32
Active Core-based Ratio Limits: Disable (while disabled it applies the multiplier I choose to all cores; when enabled I can choose separate multipliers for each core.)
Ratio Limit: 47
I have not messed with the Amps values, only Watts (they were originally somewhat lower than 150).
The "Burst Mode" and "Sustained Mode" are described in the BIOS as temporary states. Is there no way to make the Turbo multiplier work all the time? It certainly should, since folding uses all cores at 100% all the time.
Thanks!
Lame huh? You have to use a "static" voltage for this to work. 
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