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Ram reading wrong

post #1 of 4
Thread Starter 
Can someone explain to me why my ram is reading incorrectly in cpu-z or other software. Thing is the values are correct but why are they set to what they are ????????? 931 x 2 is is 1862, but in my bios 1866 is selected as the speed. My bclk is set to auto but shows slightly lower than 100 mhz its like 99.84, and my cpu wich is set to 45 , should be 45 x100 = 4500 but cpu-z shows all my values underclocked. WHy is this happening ? I can go in and set the value manually for bclk to like 100.02 but then it goes over the values, why cant I find a happy balance. The thing that really is bothering me is 183 isnt really close to 1866 its liek 3mhz off, that is a pretty big difference for a rounding error. Does anyone else experience these sort of problems ????????
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post #2 of 4
1866 x 0.9984 is just about 1862.

CPU clock speeds (BCLK) are based on an osculating crystal, which varies, ever so slightly, in frequency.

All is well.
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post #3 of 4
Thread Starter 
Your correct but why is my speed showing 931 instead of 933 ? 931 is about 1862 but 1862 vs 1866 in rounding seems like a big difference.
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post #4 of 4
He is saying you are within reason, the bclk wont always be exactly 100 so in your case it is 99.84 this also affects your ram speed so its 1866*.9984 = 1863 or 933*.9984 = 931.5 which is basically what you see. It can fluctuate and over time show a few minor changes in readings.

Same goes if you overclock the CPU, typically everyone says to be safe just leave it at auto or 100 and change the multiplier, like you did at x45 which for you must be showing 99.84*45 = 4493.

If you decided to bump up the bclk as well to say 105, then your CPU would roughly be at 105*45 = 4725, but it would also affect your ram and be running higher than 1866 (or your 1862) which can prove to be unstable or cause more problems. I believe it also OCs a few other things when you change bclk, but may be wrong.
Then again this part may have to do more with older CPUs since I think now with the strap settings you may be able to OC just the CPU at a high bclk, but remain at 100 for memory and anything else. I haven't played with a CPU with straps.
This changed bclk is also something that can be ran into if doing an auto OC from motherboard software, it may decide it wants 105x43 at a high voltage and is not as good/safe as dialing in your own OC via the bios.

Your best case scenario which is likely what you are running is to keep bclk at auto (100), OC the cpu like you have, and put RAM on XMP profile if it is supported otherwise set to its quoted speed, 1866 in your case. If its off ever so slightly its not a problem/issue and not just a unique to you deal.
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Snowy Behemoth
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CPUMotherboardGraphicsRAM
Intel Core-i7 3770K @ 4.5 GHz @ 1.24v Asus Sabertooth Z77 Gigabyte GTX 1070 G1 Gaming 16GB Corsair Vengence DDR3 1600 
Hard DriveHard DriveHard DriveHard Drive
OCZ Vertex 4 256GB SSD OCZ ARC 100 240GB SSD WD Black 1TB 7200RPM 64mb Sata 6Gb WD Green 3TB 
Optical DriveOptical DriveCoolingOS
LG Blu-Ray Burner Asus DVD Burner Corsair H100 Windows 7 Professional 64bit 
MonitorMonitorKeyboardPower
Asus PB278Q 27" 2560x1440 HP 23" 1920x1080 Microsoft Sidewinder X6 OCZ Fatal1ty 1000W 
CaseMouseMouse PadAudio
Thermaltake Level 10 GT Snow Edition Microsoft Sidewinder Razer eXactMat SteelSeries Siberia V2 Headset 
AudioAudioAudioOther
Onkyo TX NR727 Receiver KEF KHT5001 5 Speaker System + 2 JBL Loft 40s KEF Q400b Subwoofer CyberPower CP1350PFCLCD UPS 
CPUMotherboardGraphicsRAM
Intel Pentium G3258 Asus Gryphon Z87 With Armor XFX R7 250X 8GB HyperX Fury White  
Hard DriveOptical DriveCoolingOS
WD VelociRaptor 150GB 10000RPM ASUS DVD Burner Cooler Master Hyper T4 Windows 10 Professional (Insider Build) 
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