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Need help. 2500k Stuck on 1.6Ghz!

post #1 of 8
Thread Starter 
i5 2500k
Asus P8P67 pro
1053 bios version
gskill 1600 2x2gb ddr3 ram

Cpu-z 1.56.3
Real Temp 3.67

I had it running pretty good at various speeds, 4.4-4.8Ghz, stable with 1hr prime 95 blend tests. But as I was tweaking down the voltage and checking for stability, I see everything drop, temps, vcore, and multiplier. Now it seems that I am stuck with a 16X multiplier, even under load.
I have tried:
loading my other bios profiles that I saved before, and I can't get it past 16x even under load.
Default bios profile
Used AI Suite II's auto tune feature. When it was tuning it said something like 4.3ghz with a 103 bclk and 42 multi but after it was done I opened cpu-z and see it still stuck on 16x. Also 16x in the ai suite monitor cpu section as well.
Cleared CMOS
Disabled C1E, EIST
What should I be trying next? Re-flash the bios? Anyone else ever have this problem?
post #2 of 8
First off, what bios version are you on? Asus released 1204 that fixed a lot of the issues for the P8P67 boards.
The Wtfer
(13 items)
 
  
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The Wtfer
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2600K ASUS P8Z68-V PRO EVGA GTX 465 w/ 470 Shaders/Memory/Clocks 8GB G.Skill DDR3 1866 
Hard DriveOptical DriveOSMonitor
Samsung F3 1TB LG 22X DVD±R DVD Burner Windows 7 Professional 64-Bit Dell U2311H + LG W2242S 
PowerCase
Corsair 750TX Coolermaster RC-692 Advanced 
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post #3 of 8
Thread Starter 
Bios version 1053. when I tried to flash to 1204, I got a message stating "The selected file is not an EFI BIOS" is that the bios you are running?
post #4 of 8
Quote:
Originally Posted by VillageIdiot;12200187 
Bios version 1053. when I tried to flash to 1204, I got a message stating "The selected file is not an EFI BIOS" is that the bios you are running?

I had the same problem with flashing my board but once I tried a usb stick, the bios recognized the bios file and the flash was successful.
post #5 of 8
Thread Starter 
I will have to try that then
post #6 of 8
Thread Starter 
Bios updated successfully to 1204 via the flash drive method. Thanks Farmer Boe! However the problems still persisted.

I still don't know what the problem is but I kind of found a temporary remedy. What did work was going into the bios, setting AI Tuner to "Manual", Turbo Ratio to "By All Cores (can adjust in OS), save settings and reboot. And when I when I am in windows I am still capped at the 16x multiplier until I go into AI Suite II > Tool > TurboV Evo > More Settings > Turbo Ratio > make any adjustment (even if it is from 37 up to 38 and back down to 37) and hit apply. Then the limited 16x multi goes away and it can go up to what was set in the TurboV. But I have to do this every time the computer is shut off/reboot. Is there a fix for this?
post #7 of 8
I think that 1600Mhz thing is perfectly normal and is caused by Turbo Boost 2.0 where the CPU's multiplier - and so it's core clock speed - is adjusted depending on the load that is put on the CPU.
Mine is also on 1600Mhz, but wile doing a benchmark or running prime, I see clock speeds up to 3400Mhz (I thought, without altering the multiplier yourself and overclocking automatically / manually through the EFI BIOS, the CPU could maximally gain 100Mhz).

See http://www.motherboards.org/content/intel-core-i5-2500k-cpu-dh67bl-bearlake-motherboard-review?page=2
Quote:
Turbo Boost 2.0 is a new standard for auto-overclocking your system. Previously, in Turbo Boost 1.0, the processor disabled one or more cores depending on the workload of the processor to reach the highest level. The newest version of Turbo Boost works in three modes; four core Turbo, Dual Core Turbo and Single Core Turbo. Turbo Boost 2.0 is efficient by varying the Turbo frequency based upon the workload adaptively depending on the type of instructions. It boosts power level to achieve power gains for high intensity “Dynamic” workloads, and uses a power averaging algorithm managing power and thermal headroom to optimize performance.
post #8 of 8
Enable Intel Speed Step and increase the short and long term power limit to 200 each, also set the duration as high as it goes. Let me know if this helps.
My System
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2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
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My System
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CPUMotherboardGraphicsRAM
2500k @ 5GHz ASRock P67 Extreme4 GTX 580 8GB G.Skill Ripjaws X @ 1600 8-8-8-24 
Hard DriveMonitorPowerCase
64GB Crucial SSD/1 TB WD Caviar Black Asus VG236H 23" 3D Corsair 850 TX 800D 
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