Question about RAM speeds.

I just got this RAM:

Corsair XMS2 DHX 2048MB Dual Channel PC6400 DDR2 800MHz Memory (2 x 1024MB)

Now when I run CPU-Z it says the DRAM Frequency is 400 Mhz. Isn't it suppose to be 800 Mhz? Well this is what I'm looking at:

So basically my question is: Is my RAM running at 800 Mhz like its suppose to or is something wrong and its running at 400 Mhz and less? :? :(

Btw. This is my board

Yeah. I didn't know how that worked,so checked mine with cpu-z which is 400mhz RAM and it showed a DRAM frequency of 200mhz. So, 2x200 = 400mhz. Makes sense now.

Oooops...another FYI...mhz only affects bandwidth, not speed so it's not always better to get high bandwidth RAM, go for latency numbers. Get a 4 gig kit and you'll max out at around 2.75, to 3.5gig of ram. Keep in mind XP and Vista do not support a full 4 gig of ram, so if you want those benefits you'll have to go to a 64bit OS. Thus the reason why they're creating this overclocked RAM. So the ultimate setup is Vista/XP 64, 4gig at 4-4-4-12...I won't even get into DDR3, it's not worth it and I think it's just a gimic.2005wrxsti

[QUOTE="2005wrxsti"]Oooops...another FYI...mhz only affects bandwidth, not speed so it's not always better to get high bandwidth RAM, go for latency numbers. Get a 4 gig kit and you'll max out at around 2.75, to 3.5gig of ram. Keep in mind XP and Vista do not support a full 4 gig of ram, so if you want those benefits you'll have to go to a 64bit OS. Thus the reason why they're creating this overclocked RAM. So the ultimate setup is Vista/XP 64, 4gig at 4-4-4-12...I won't even get into DDR3, it's not worth it and I think it's just a gimic.yoyo462001

No they don't bro...check your stuff out, do some research. They allow for RAM in the DIMM slots but they use most of it for addressing and it's not active for applications. Even if you turn on revamp ram in your BIOS you're not using it all. TRUST ME!

Also....just an FYI on speed of your RAM, most of it that's DDR2 6400 is very easily overclockable keeping latency the same. You're not going to be able to get up to 1066mhz with it, but I've got my Patriot running at 937 at 4-4-4-12. 2005wrxsti

Just curious but whats your Voltage at?

I'm pushing 2.3v...stock is 2.2v. I think I may have gotten lucky though, because there are a lot of people that can't get their ram up that high. Then again I've also got a fan right on top of my ram. I Prime95'd the system for 8hrs without an error.2005wrxsti

Yeah , nice work.

[QUOTE="yoyo462001"][QUOTE="2005wrxsti"]Oooops...another FYI...mhz only affects bandwidth, not speed so it's not always better to get high bandwidth RAM, go for latency numbers. Get a 4 gig kit and you'll max out at around 2.75, to 3.5gig of ram. Keep in mind XP and Vista do not support a full 4 gig of ram, so if you want those benefits you'll have to go to a 64bit OS. Thus the reason why they're creating this overclocked RAM. So the ultimate setup is Vista/XP 64, 4gig at 4-4-4-12...I won't even get into DDR3, it's not worth it and I think it's just a gimic.2005wrxsti

No they don't bro...check your stuff out, do some research. They allow for RAM in the DIMM slots but they use most of it for addressing and it's not active for applications. Even if you turn on revamp ram in your BIOS you're not using it all. TRUST ME!

Actually... all 32bit OS's do address up to 4gigs of ram. But there is a catch... this mean all ram from all your components on your PC, not just the system ram. System ram gets it's memory addressed, last.

What happens is system ram usually only gets addressed around 3.5 gigs, becausethe other installed components on your PCtooksome of that memory addressing for itself.

Ok, another FYI for you. Becarefull of heat, that's your enemy, I know too many people that jack their system components up to the highest voltage possible then overclock. Well, it's hurting you in the long run with reliability and you're not getting the performance you really think out of it.

Also in your system BIOS you should have different multipliers for ram 1:1, 3:4 etc. you can play with this, your system may not post but you won't hurt the RAM

My suggestion is to get a few software programs if you're going to be overclocking.

1. CPU-Z (cpuid)

2. CoreTemp (will show all four coretemps)

3. Prime95 which will stress test your system after overclocking

True overclocking takes lots of time, be willing to spend at least an entire full day working on your comp. but the results are astounding if you have the patience, and it's a pride thing. Here's a great link for info on how to overclock for newbs.

http://forums.extremeoverclocking.com/showthread.php?t=261409

Actually... all 32bit OS's do address up to 4gigs of ram. But there is a catch... this mean all ram from all your components on your PC, not just the system ram. System ram gets it's memory addressed, last.

What happens is system ram usually only gets addressed around 3.5 gigs, becausethe other installed components on your PCtooksome of that memory addressing for itself.

Threesixtyci

I was being lazy...thanks for filling in the holes for him.

[QUOTE="2005wrxsti"]

[QUOTE="yoyo462001"][QUOTE="2005wrxsti"]Oooops...another FYI...mhz only affects bandwidth, not speed so it's not always better to get high bandwidth RAM, go for latency numbers. Get a 4 gig kit and you'll max out at around 2.75, to 3.5gig of ram. Keep in mind XP and Vista do not support a full 4 gig of ram, so if you want those benefits you'll have to go to a 64bit OS. Thus the reason why they're creating this overclocked RAM. So the ultimate setup is Vista/XP 64, 4gig at 4-4-4-12...I won't even get into DDR3, it's not worth it and I think it's just a gimic.yoyo462001

No they don't bro...check your stuff out, do some research. They allow for RAM in the DIMM slots but they use most of it for addressing and it's not active for applications. Even if you turn on revamp ram in your BIOS you're not using it all. TRUST ME!

Did I not say addressing? :roll:

[QUOTE="yoyo462001"][QUOTE="2005wrxsti"]

[QUOTE="yoyo462001"][QUOTE="2005wrxsti"]Oooops...another FYI...mhz only affects bandwidth, not speed so it's not always better to get high bandwidth RAM, go for latency numbers. Get a 4 gig kit and you'll max out at around 2.75, to 3.5gig of ram. Keep in mind XP and Vista do not support a full 4 gig of ram, so if you want those benefits you'll have to go to a 64bit OS. Thus the reason why they're creating this overclocked RAM. So the ultimate setup is Vista/XP 64, 4gig at 4-4-4-12...I won't even get into DDR3, it's not worth it and I think it's just a gimic.2005wrxsti

No they don't bro...check your stuff out, do some research. They allow for RAM in the DIMM slots but they use most of it for addressing and it's not active for applications. Even if you turn on revamp ram in your BIOS you're not using it all. TRUST ME!

Did I not say addressing? :roll:

[QUOTE="2005wrxsti"][QUOTE="yoyo462001"][QUOTE="2005wrxsti"]

[QUOTE="yoyo462001"][QUOTE="2005wrxsti"]Oooops...another FYI...mhz only affects bandwidth, not speed so it's not always better to get high bandwidth RAM, go for latency numbers. Get a 4 gig kit and you'll max out at around 2.75, to 3.5gig of ram. Keep in mind XP and Vista do not support a full 4 gig of ram, so if you want those benefits you'll have to go to a 64bit OS. Thus the reason why they're creating this overclocked RAM. So the ultimate setup is Vista/XP 64, 4gig at 4-4-4-12...I won't even get into DDR3, it's not worth it and I think it's just a gimic.yoyo462001

No they don't bro...check your stuff out, do some research. They allow for RAM in the DIMM slots but they use most of it for addressing and it's not active for applications. Even if you turn on revamp ram in your BIOS you're not using it all. TRUST ME!

Did I not say addressing? :roll:

This guy is a newb so I didn't want to confuse him, that's why I didn't add in the specifics but it's in the second comment. And yes I meant 32 for XP and vista.

[QUOTE="2005wrxsti"]I'm pushing 2.3v...stock is 2.2v. I think I may have gotten lucky though, because there are a lot of people that can't get their ram up that high. Then again I've also got a fan right on top of my ram. I Prime95'd the system for 8hrs without an error.Eva027

Yeah , nice work.

Thanks, actually it all fell into place about two weeks ago FRY's Electronics had a sale on the Patriot PC26400 4-4-4-12 4gig kit, only $100.00. but if you're looking to buy, then do it before the storm season starts in Malaysia because production and shipping slow down and the prices rocket.