HiDoes this (see attached picture) Performance looks OK to you experts?I get about 50% CPU usage. What is PF Usage?Stelios

PF is your Page file. Memory usage.That 50% you see is actually 100% of 1 core. See the graph to the right. Each box is for each core. 1 core is almost 100% utilization the second core is hardly being used. That means.. its pretty much maxed out even though the overal utilization is 50%.More important is...can you fly reasonably well with that setting? if you are happy with it..thats it. Forget the "Experts". ;)One other thing you may want to do is. do a Shift+Z a couple of times, till you see detailed FPS information on the screen. then post that screenshot. That would tell us your performance a bit more.Manny

Thanks Manny for your answer. But I have only one core CPU. You say that the second core is hardly used. How come if I only have one?My Frame rates are from 15-35. 15 at big cities and 20-35 everywhere else.Stelios

You have two boxes because you have a Hyperthreaded CPU. It's basically a virtual 2nd core. That's why it shows two. If you look under CPU in your Device Manager, you'll also see two CPUs listed.

What he said.One thing you can do with the P4 Hyperthreading-capable processors is disable the HT option in the BIOS. Not that it's a tweak or anything. But it essentially sets the CPU up as one dedicated CPU rather than trying to appear as two "virtual" CPU's. Then simply let the system boot and it will now look in Device Manager and Task anager as a single-core CPU.If your results are typical, you likely will see little to no performance gain at all. The difference will be that Task Manager should report that single P4 CPU as being 100% busy. So the second "virtual" CPU in Hyperthreaded mode is not "virtually" 50% of the core, or clock cycle available, or anything else. You could kind of think of it as "just a leetle bit of CPU left over" to manage other background stuff. Maybe it represents more like 20, or 10, or 5, or 1% of the actual CPU capability. Point is, it's dynamic and not "hard" like a true dual core.

if your results are typical, you likely will see texture loading artifacts in fsx while running on a single thread...;-)

Stelios,If you are getting 20-35FPS..thats awesome. Don't know what FSX settings you have to get that. But I would assume that it was acceptable to you.If you want to feel better with your setup. Check this out.http://www.extremetech.com/article2/0,1697,2059877,00.aspThat was posted on the Hardware forum/thread. The Top of the line PCs today...running FSX. Costing between $5000-$8000. Getting less than 18FPS.;)Manny

>What he said.>>One thing you can do with the P4 Hyperthreading-capable>processors is disable the HT option in the BIOS. Not that>it's a tweak or anything. But it essentially sets the CPU up>as one dedicated CPU rather than trying to appear as two>"virtual" CPU's. Then simply let the system boot and it will>now look in Device Manager and Task manager as a single-core>CPU.Ok Should I do this then? Disable HT? Would it be better for FSX? What about the rest of the programs I run? Why then did I buy this HT processor if I am going to disable it.Stelios

>Hi>>Does this (see attached picture) Performance looks OK to you>experts?>I get about 50% CPU usage. What is PF Usage?>>SteliosHow did you manage to get FSX running on Win95 !??!... just kiding :(

No....the point was, there's no gain in it.....but you could do it IF you wanted to to see for yourself. Which is why I said it's "not" a tweak or anything. But I feel it's always important to illustrate how you can see for yourself, to decide for yourself, as opposed to listening to what could be the mere opinion of someone you don't know. Sorry if it got your hopes up...was just an example to illustrate what's going on under the hood. Your processor is already dealing with this in a very efficient way.On Question 2 - well, if you're like me I'd suppose you bought the HT processor because, at the time, it was good technology for the money, had promise, and doesn't exactly suck, either. Again, read into the fact that disabling HT doesn't help...that means, ipso facto, that HAVING HT doesn't HURT either. It's okay. :)