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Ooops! I got my CPU ratio throttled at 47. Help!

post #1 of 9
Thread Starter 

I have a P8Z77-V Deluxe with a 2550K that has been running happily at 4.8Mhz for months. Unfortunately I "twiddled" a few setting in my UEFI based on reading the Asus ROG Overclocking Guide. Now it won't run over 47 even if I set the ratio to 48 or 49. Has anybody else experienced this ratio limit? It runs under load with this limitation but won't clock up under load.

 

I looked for a thread but came up with no answers.

 

Any help would be appreciated. I am more interested in knowing why this is happening than getting a couple more Mhz.

 

TIA

post #2 of 9

The ratio?  Are you saying that you adjusted the Turbo Ratio in the "Ai Tweaker" tab, or did you adjust "CPU Ratio" in the CPU Power Management area?

 

Do you have Turbo Mode enabled?

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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #3 of 9
Thread Starter 

Sorry, I have the Turbo Ratio on, say, 48 and the CPU ratio on Auto. OC is in Manual.

post #4 of 9
SpeedStep and Turbo Mode enabled?

But sometimes it's faster just to punt. Record your known good settings, clear BIOS to defaults, and start over.
post #5 of 9
Thread Starter 

Well, I went to default settings (I am on 1805)......still get 47 reported from CPUZ.

Then I went to manual and put in 40....still 47 when I get into win7 (all up to date).

Then I went to XMP..........47

 

Some more details.

1. I recently moved to 1805 BIOS.

2. I have had the TPU switch off and on for these many tests.

3. I have had NO BSODs, freezes. Even with OCCULT and AIDA64.

 

I am beginning to think the ratio is not getting out correctly to win7 but I dunno.

 

I know that if this an 1805 issue other folks should be squawking.

post #6 of 9
Thread Starter 

This is a pointer to a Hardforum thread wherein "LDFiberman" says his mobo is throttled as well with 1805.

 

http://hardforum.com/showthread.php?p=1039639076

 

I really believe something is up this new version.


Edited by spagnacious - 3/6/13 at 3:00pm
post #7 of 9
You haven't updated your version of CPU-Z lately, have you? Sometimes certain versions will act strange with certain CPUs.

edit: n/m, didn't see your last post coming in...
post #8 of 9
Thread Starter 

Well, I learned about flashback and went back to 1709. Now running at 48 and 49Mhz with no problems.

 

1805 is the one with the problems, I think.

post #9 of 9
happens again, clear cmos a couple times
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My Rig
(19 items)
 
Rig Contest Build
(13 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770k Asus P8Z77V-LK Evga Geforce GTX 760 Superclocked AMD RE1600 Entertainment Series 
Hard DriveHard DriveHard DriveHard Drive
Seagate Barracuda Seagate Momentus 2.5 (backup) Western Digital Caviar Black 1tb Western Digital Caviar Blue 1tb  
Hard DriveHard DriveOptical DriveCooling
Western Digital Caviar Blue Samsung 840 EVO LG DVD Super Multi Cooler Master Hyper 212 EVO 
OSOSMonitorKeyboard
Windows 7 Ultimate x64 MacOS X Mountain Lion Insignia 26" Display 1080p Gigabyte KM6150 
PowerCaseAudio
Xigmatek NRP-PC602 Cooler Master HAF 922 Focusrite Scarlett 2i2 Audio Interface 
CPUMotherboardGraphicsRAM
Intel Core i7 3930k Asus Rampage IV Formula evga geforce gtx 660ti 3gb G.skill rip jaws z series 
Hard DriveHard DriveHard DriveHard Drive
WD Caviar Black 2 tb WD Caviar Black 1 tb wd caviar black 2tb we caviar black 1tb 
Optical DriveCoolingMonitorPower
lite on ihbs112-04 Cooler Master Hyper 212 Evo acer s220hqlabd 21.5" Corsair ax850 
Case
Cooler Master Haf 922 
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