Memory and Vista should I purchase faster RAM?

[GunRunner]

I am currently running the following system.

Asus P5N-T Delux (780i)
C2D E6600 overclocked to 3.4ghz (won't go any higher even though under load the cores only reach 50 degrees C).
Arctic Cooling Freezer 7 Pro cooler.
Tagan 700 watt (TG700-U25)
2 x 8800gt 512mb BFG OC2 (SLI)
Antec 900 case with extra side fan (sharkoon silent eagle 2000 120m)
Samsung Syncmaster 215W widescreen (1680 x 1050)
Windows XP Pro (SP2)

I am using GeIL 2gb (2x1gb) PC6400C4 800 Mhz Ultra Low Latency DDR2 Dual channel Kit (GX22GB6400UDC). http://www.overclockers.co.uk/showproduct.php?prodid=MY-058-GL

I am going to install vista and was wondering about the RAM.
Given that I can only get my current RAM to run at 900 Mhz (2.11v), and I am going to have to use 4gb to run vista, I was wondering if it made sense to purchase another 2 gb of exactly the sam ram and be limited to the 900mhz speed, or to sell my current RAM and purchase 4gb (2 x2gb) of new RAM (1066 or higher), so that I can run it at stock or overclock it to over 1333 or higher.
My questions to anyone with RAM experience, is:

1. Does it make sense?
2. Will I see any noticeable speed improvement over my current RAM speed?
3. Will I have any stability issues with any new faster RAM on this board (running latest 0802 BIOS)?
4. Will I have any compatibility issues with the motherboard or any particular make of RAM if I do go for faster modules?

Any contributions to this thread will be gratefully recieved. Thanks.

 

[willhub]

Most people can run Vista with 2gb fine, but I find 3GB+ to be better. In windows I doubt you will see any sort of speed improvement with faster ram, infact from what I've seen in games ram only makes minimal difference, I use the same ram but running at 850Mhz 4-4-4-12. at 1.8-1.9V.

I'd just get another set of GeIL ultra tbh, you could sell it and I think 2x 2GB would overclock better, It seems that some mobos overclock better with only 2 sticks of ram. But IMO I dont think you'll notice much difference with a higher speed, more memory always does help though especially when multitasking.

So to answer your 4 questions:
1: Yes it makes sense if you find 2GB of ram is being used up, but it seems the more ram you have the more ram Vista uses with that superfetch or something, Vista handles memory differently so more ram will still enable you to run more things.
2: Doubt it, from benchmarks it only shows a minimal increase.
3: Not quite sure, I dont think you will but I think someone else can answer this, I dont see any reason why it wont run at higher speeds.
4:I am not sure, I dont expect there would be any issues as your board seems fairly new, I think someone with that motherboard would be able to give some more info, alternativly you could check out some reviews.

Hope that helps

 

[MeatLoaf]

Dont forget that as youre running 2 gfx cards you will only see 3Gb of the 4Gb you put in, unless you have 64bit vista

 

[GunRunner]

Dont forget that as youre running 2 gfx cards you will only see 3Gb of the 4Gb you put in, unless you have 64bit vista

I am confused by this statement! If I was running only one graphics card, I would see the same wouldn't I?

By the way, is there much difference in every day life between Vista 32 bit and Vista 64 bit, given that I run the normal office applications and have the usual scanner, printer, etc? I also need to configure my Sound Blaster XFi sound card, Teamspeak. Trackir 4, and my CH Products Fighterstick USB, Pro Throttle, USB Pedals, and last not least my Nostromo speedpad n52. Not forgetting the IL2 forgotten battles game...see here..http://www.warbirdsofprey.org/

Hummm...?