iMac Bootcamp.... RAM running at a slower frequency?

[applepie555]

Hello,
I have an iMac early 2009 (2.93 ghz core 2 duo, nvidia gt120). I have loaded up bootcamp with Windows 7 so I can run some games and some windows programs. I am using the 64bit version of Windows. Technically this version is unsupported, but it is still possible to get it to work, see http://michael.anastasiou.me/en/component/content/article/22

I'm unsure if this is the cause of the problem.
After running it for a while, I noticed that my ram was not running at it's maximum frequency. The ram/fsb is supposed to run at 1066mhz, but under bootcamp it runs at only 530.7 mhz.

Is this normal? I don't want to have my ram speed be slowing down performance. Is there away to fix this?

Thanks

 

[PJM82]

I wonder if its simply not being read correctly. Its reporting at exactly half of the 1066 Mhz.

 

[richard13]

You don't say how you are reading your memory frequency but since it is close to half I'm pretty sure what's being reported is normal.

PC3-8500 RAM (DDR3) has a clock of 533 MHz with an effective output of 1066 MHz. DDR stands for double data rate.

 

[PJM82]

You don't say how you are reading your memory frequency but since it is close to half I'm pretty sure what's being reported is normal.

PC3-8500 RAM (DDR3) has a clock of 533 MHz with an effective output of 1066 MHz. DDR stands for double data rate.

Yeah jut had a look on my Windows box and most report it in as the headline figure but a few program's give you the true MHz speed. Confusing to say the least.

 

[applepie555]

Umm I saw the stat in CPU-Z. Decided to run a geekbench test since it is cross platform and so I can compare stats

Mac:

Windows:

So it does seem that something is different on windows

 

[PJM82]

If it was running at half speed your score would be far lower than that. You won't get identical scores between platforms.