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DDR3 1600Mhz RAM Displayed As 1333Mhz

post #1 of 6
Thread Starter 
I'm having a problem with my ram, it is 1600Mhz but is being detected as 1333Mhz, these are the relevant specifications:

CORSAIR XMS3 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) CMX8GX3M2A1600C11
ASRock Z77 Extreme4 LGA 1155 Intel Z77

I am running Bios version 2.30.
This is a link to my RAM:
CORSAIR XMS3 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) CMX8GX3M2A1600C11

Newegg says the following:
Quote:
DDR3 1600 (PC3 12800)
Timing 11-11-11-30
Cas Latency 11
Voltage 1.5V

CPU-Z shows this:




I've tried changing the Bios setting to the XMP profile, but then it fails to boot. Setting the Memory speed to 1600 has the same result.

Also, is there a reason that CPU-Z shows different timings then Newegg?

If there is any more information that can be of use, please let me know.

Thank you.
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post #2 of 6
Try doing it manually. Don't click XMP.
Queso Fresco
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Quesoblanco View Post

Try doing it manually. Don't click XMP.

I've just tried doing so again but it still fails to POST: I'm tried both Newegg's and CPU-Z's listed timings, (I'm not sure which is right.)
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SAMSUNG 830 Series 256GB SATA III SSD None Coolermaster Hyper 212 Evo Windows 7 Ultimate x64 
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post #4 of 6
the correct listed timings are the ones on the manufacters website
   
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post #5 of 6
Thread Starter 
Quote:
Originally Posted by ggoodd View Post

the correct listed timings are the ones on the manufacters website

Sweet, then that would be 9-9-9-24, 1.65V.

Thank you very much, time to go test it!
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SAMSUNG 830 Series 256GB SATA III SSD None Coolermaster Hyper 212 Evo Windows 7 Ultimate x64 
OSMonitorMonitorMonitor
Ubuntu 8.04 17 Inch 75hz 1024 x 768 23.6 Inch 120hz 1920 x 1080 20 Inch 60hz 1600 x 900 
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post #6 of 6
fill in your system specs, and add a couple cpu-z shots with the cpu and actual memory tabs. You may need to adjust more than just your memory settings
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Wet Willy
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Oold man 555
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Hard DriveOptical DriveCoolingCooling
OCZ Agility 3 RAID0 lite on dvd burner Raystorm Danger Den 480 Full copper (paralleled)  
OSMonitorMonitorKeyboard
Dual boot, Windows7 64bit/Linux ubuntu64bit 1hpw2207h1680/1050  Sharp 60" LED 120hz s510 
PowerCaseMouseAudio
Ultra 1600w X4 NZXT, Tempest EVO logitech s510 combo Harmon Kardon AVR245 
CPUMotherboardGraphicsRAM
Phenom II X4 B55 m4n82 deluxe ghetto gtx 460 patriot viper 1066 
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some crap sata dvd thermal take big typhoon windows 7 ultimate  
MonitorPowerCase
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