CPU-Z Showing RAM at PC2-6400, should be PC2-8500

[LakersDodgers]

I am a bit confused on the reading from CPU-Z, it is showing that my memory is Max Bandwidth at PC2-6400 (400Mhz). In the bios, it shows 1066Mhz. The memory I have are (2) Patriot Extreme Performance PC2-8500 1066Mhz (5-5-5-9) 2GB(2x1GB) Kit.

I run the Vista Performance Index and I am only getting a 5.5. I just upgraded to 780i from 680i and the rating was maxed at 5.9. I have upgraded bios to P4 on the motherboard. I ran Memtest and passed with no problems.

Please any help with this problem would be appreciated.

Peace

 

[LakersDodgers]

Thanks for all the replies, really appreciated it. Let me add some screenshots of what I am dealing with. Thanks

 

[Seb1]

Your welcome.
The JEDEC only provides the standard for the PC2-6400 (DDR2-800 MHz) memory speed... LOL
Your Patriot 8500ELK it's basically an overclocked PC2-6400 memory, so the SPD table will be set for PC2-6400 speeds.

 

[Gillbot]

It only shows JEDEC at 1.8v, your ram is most likely 1066 at a higher voltage than 1.8v.

 

[LakersDodgers]

So why am I bottlenecking at a 5.5 on the Vista Performance Test? I set the voltage at 2.3V.

 

[aethelwulf]

So why am I bottlenecking at a 5.5 on the Vista Performance Test? I set the voltage at 2.3V.

That shows you're running at 1066, not 800. As stated, your memory is basically overclocked. I have to ask why you care about "Vista Performance Test". Basically, it's possible to have faster memory. Don't worry about it. In the real world, that test means nothing.

 

[LakersDodgers]

Thanks for the response, its just didnt look right in my eyes. In regards to that Vista test, i had 5.9 before, i was expecting again.

 

[Gillbot]

Performance test numbers can go up/down depending on what you ahev running in the background also. One time you may have been running AIM or something, the next not.

 

[LakersDodgers]

Performance test numbers can go up/down depending on what you ahev running in the background also. One time you may have been running AIM or something, the next not.

The thing is that this was a fresh install. With the motherboard upgrade, i did not want anything to be a possible glitch. I just see that test as an easy test. Dont I have decent memory, shouldnt it have passed with hight ratings?

 

[Trombe]

The Vista Performance Test is pretty stupid and pointless, don't worry about the score you get from it because frankly it doesn't matter.

 

[LakersDodgers]

ok, what test would you guys recommend and what type of results should i get running stock configurations.