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Avatar of Gino Verstraeten
Gino Verstraeten

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Settting the FSB to 1333

Hello,

I have a motherboard from Acer G45t/G43T AM3 V 1.0
https://drive.google.com/open?id=149hYnRKNDzh86u_CrZDnfu2Nii2bszdY
I am using DDR3 1333 Ram modules  
https://drive.google.com/open?id=1sHjRn7PDfw7wbF02T7kckY-6ZUJX92Mi
But when i boot , the motherboard sets the FSB 1066, like you can see in the picutre below
https://drive.google.com/open?id=1Xpvkf7zRtX85C_cVOwf0XLt-YOKXILDG
I have searched in the bios to change it, but i cannot find anything.
Any ideas how to speed up the ram to 1333?

Kind regards
Avatar of David Favor
David Favor
Flag of United States of America image

Some BIOS code is smart enough to test memory speed + pick highest memory speed which produces no memory faults during a quick test.

If your BIOS code is this smart + one of your RAM sticks is faulty or mislabeled, your BIOS will set FSB as high as possible to allow your system to boot.

Try rebooting with one RAM stick at a time + check FSB times on all your RAM sticks, one at a time.

If some set FSB 1333 + some set FSB 1066 then you'll work with where you purchased memory to figure out your next step.
Avatar of Dr. Klahn
Dr. Klahn

The faster that memory is clocked, the more wait states are required for it to work.  Thus a 1066 MHz module might have 6 wait states but a 1333 module might have 8 wait states resulting in just about the same throughput.

So in this situation where the motherboard does not provide memory tuning, I'd leave it alone.  The motherboard may not select the fastest possible operation but it'll select stable operation and in general stable is much better than fast.
If you want to experiment then look at SetFSB  https://www.majorgeeks.com/files/details/setfsb.html

However read the disclaimer at the bottom of the page VERY CAREFULLY.

I'd leave well enough alone.
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