Update to problem.

While searching the internet, I found that this is a common problem with the
Q6600 processor and more than 4gb of RAM. I removed two sticks of RAM and
the speed improved (Even the Windows Experience CPU score was back up to
5.9). I then added two additional 512 Sticks to make a total of 3Gb and fill
all four RAM slots. System is still working like it should.

So, it looks like Vista-64 Ultiimate has problems on computers with the
Q6600 and 4GB of RAM.

ajf




"ajf" wrote:

> I've been playing around with both the 32 and 64 Bit versions of Vista
> Ultimate on my new PC. The system specs are as follows;
>
> CPU: Intel Q6600 (Quad Core 2.4)
> MB: Intel DG965WH
> RAM: 4Gb (1Gb Transcend PC 800MHz x 4)
> Video: PNY 8800GTS
>
> In Vista 32-Bit, System runs well (Good CPU Utilization) but will not see
> all 4Gb RAM (3.2+GB Seen), system seems to be using a fair amount of RAM.
> Windows Experience score Rates the CPU at 5.9
>
> In Vista 64-Bit Systetm runs significantly slower than the 32-Bit version.
> CPU Utilization near 50% with system at idle for all four cores. Running
> simple software pegs all four cores at 100%. System sees all four Gb and RAM
> utilization is better than in the 32-Bit. Windows Experience Score has
> dropped the CPU to 4.6.
>
> Two other IT people at work with similar system specs have the same problem
> in 64-Bit Vista.
>
> Anyone getting good results running 64-Bit Vista on an Intel Quad-core?
>
> ajf