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Why is my RAM retarded? 1600MHZ showing 1333MHZ in BIOS.

post #1 of 30
Thread Starter 
So I have 8 gigs of corsair vengeance low profile RAM at 1600MHZ. I got CPU-Z and it says the VRAM frequency is 668.9, which I guess is 1333MHZ. I have the ASUS P8z68-V Pro and I went into the UEFI and sure enough it says it is 1333MHZ.

My question is why the hell is my ram frequency lower than advertised? I find it kind of retarded that I have take steps to increase the frequency of my RAM to begin with just to get it to be where it was advertised as being. I'm pretty new to all this, so I'm not sure how to do it. I was looking around the BIOS and am not sure how to change it, and didn't want to mess with anything.

Help me out please if you know what I have to do. Thanks!
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post #2 of 30
Go into your BIOS and change the ram speed use XMP profile 1. look for XMP profile Enabled setting or manually change the SPD multiplier to 16 of you have Sandy Bridge.
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post #3 of 30
99% of ram needs to be set to advertised speeds.. it has nothing to do with that specific kit.
    
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nope! 
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post #4 of 30
What are your system specs? Hard to know where to tell you to go if we don't know the manufacturer.
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post #5 of 30
Did you change it to 1600 MHz...?

It defaults to 1333 MHz in the BIOS. Your RAM is fine...

Back in the first gen i7 days the memory multiplier was 8.0 by default and on my particular processor the stock BCLK was 133 MHz. So my 1600 MHz set ran at 1066 MHz. To circumvent this I had to either raise the BCLK or raise the multiplier. With the onset of Sandy Bridge and loss of BCLK's importance the procedures are probably different, not that I'd know
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post #6 of 30
+1 to the above, you need to set XMP profile 1. Remember, 1333mhz is the rated speed for sandy bridge, anything over that is an overclock and must be set manually.
post #7 of 30
Thread Starter 
Quote:
Originally Posted by rdfloyd View Post

What are your system specs? Hard to know where to tell you to go if we don't know the manufacturer.

ASUS p8z68-V Pro for motherboard and 8GB Corsair Vengeance LP 1600MHZ DDR3 for RAM. CPU is Intel i7 2600k. What else do you need to know?


I was just in my bios and I couldn't find any XMP profile enabled setting or anything of the sort. I'll check again though.
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COMPYTRON-9000
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Hard DriveOptical DriveCoolingOS
Samsung Spinpoint F4 2TB Generic DVD RW Noctua  Windows 7 Ultimate 
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post #8 of 30
Go in your BIOS and where it says Ai Overclock Tuner click on the setting and change it to XMP. It's on the second tab in the BIOS. That's all you have to do. All the RAM settings will be set automatically. Just save and restart.
Edited by mrwalker - 12/28/11 at 6:28pm
post #9 of 30
What everyone else has said. Just go into your bios/eufi and set to XMP profile. If you have an AMD board sometimes you cannot just do that in which case you would need to set the frequency, timings, and voltage all independently to what the ram is rated for. Hopefully you get it sorted out.
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post #10 of 30
I made some pics for you to follow:

DSC01822.jpg


Then

DSC01823.jpg
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