One quick question, someone who knows about RAM.

[Taybox]

This is the memory i have in my current computer. I dont know much about it. If i take it out completely, can i replace it with the link below.

Memory ( 2048MB [1024MB X2] DDR2-800 PC6400 Memory Module Corsair-Value or Major Brand )


My old memory sayd PC6400, the new one says PC2 6400. I dont know what that means or if it matters?

CORSAIR 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory -
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145184 (replacing the old RAM) will it fit the slots?

[Taybox]

also im not sure bc im not at home

how many slots are usually available for RAM additions in a desktop?

[Taybox]

bc if it has an EXTRA 2 slots, i could just add this 4 gig to my already 2 gig, which would be awesome!

[Kedash00]

the 240 pin will tell you if it will fit or not, the one you are buying has 240 pin but i dunno about your desktop, when you get home pull a stick out and look at the sticker on it, if it's 240 you are good to go, if not go with whatever size you have.

[Taybox]

the 240 pin will tell you if it will fit or not, the one you are buying has 240 pin but i dunno about your desktop, when you get home pull a stick out and look at the sticker on it, if it's 240 you are good to go, if not go with whatever size you have.

tahts what i needed to know. i didnt know what that meant. thanks mate

[Suprem01]

PC6400

PC6400 and PC26400 are just the model numbers and that's it. Theres no difference its just different ways of saying the same thing.

[elsegundo]

Do you have vista 64?

im not up to date on the PC6400 and PC2 6400. let me read up on that.


edit: after reading some sites, there's no difference. its basically a labeling thing. if you have DDR2 ram, its PC or PC2. just make sure the numbers at the end match and you should be alright.

edit2: im slow today. =/

[Epotus]

bc if it has an EXTRA 2 slots, i could just add this 4 gig to my already 2 gig, which would be awesome!
I assume you would be looking to have a total of 6GBs of ram for your system?

keep in mind Windows has limits on how much memory it recognizes and therefor uses. Here's a quickbreakdown:

32-bit versions of Windows XP: 3.2GB

32-bit versions of Windows Vista Home Basic, Home Premium, Business, Enterprise, and Ultimate: 4GB
32-bit Windows Vista Starter: 1GB
64-bit versions of Windows Vista Home Basic: 8GB
64-bit versions of Windows Vista Home Premium: 16GB
64-bit versions of Windows Vista Business, Enterprise, and Ultimate: 128GB

[elsegundo]

my question on RAM:

Is it possible to mix RAM modules that have different timing?
For example, i currently have these: http://www.newegg.com/Product/Product.aspx?Item=N82E16820211066
but i also want to get these (rebate *drools*): http://www.newegg.com/Product/Product.aspx?Item=N82E16820227198

existing modules: timing is 5-5-5-18, 1.8volts, CAS latency is 5.
new modules: timing is 4-4-4-15. 2.1volts, CAS latency is 4.

will having 4 gigs total, two of the old and two of the new, cause any conflicts or instabilities? they're both 800MHz DDR2s.

[Taybox]

bc if it has an EXTRA 2 slots, i could just add this 4 gig to my already 2 gig, which would be awesome!
I assume you would be looking to have a total of 6GBs of ram for your system?

keep in mind Windows has limits on how much memory it recognizes and therefor uses. Here's a quickbreakdown:

32-bit versions of Windows XP: 3.2GB

32-bit versions of Windows Vista Home Basic, Home Premium, Business, Enterprise, and Ultimate: 4GB
32-bit Windows Vista Starter: 1GB
64-bit versions of Windows Vista Home Basic: 8GB
64-bit versions of Windows Vista Home Premium: 16GB
64-bit versions of Windows Vista Business, Enterprise, and Ultimate: 128GB

wow i had no idea. i know i have Microsoft Windows Vista Home Basic . how do i tell which bit. either its 32 bit (4gig) or 64bit(8gig). im hoping 64 bit but for some reason i bet its 32

[pengwynman]

my question on RAM:

Is it possible to mix RAM modules that have different timing?
For example, i currently have these: http://www.newegg.com/Product/Product.aspx?Item=N82E16820211066
but i also want to get these (rebate *drools*): http://www.newegg.com/Product/Product.aspx?Item=N82E16820227198

existing modules: timing is 5-5-5-18, 1.8volts, CAS latency is 5.
new modules: timing is 4-4-4-15. 2.1volts, CAS latency is 4.

will having 4 gigs total, two of the old and two of the new, cause any conflicts or instabilities? they're both 800MHz DDR2s.you MIGHT be able to make them work ok with the slower timings and higher voltage :P i wouldn't risk it, just get 4 (or 8) GB of the same thing, ddr2 is way cheap right now

[Epotus]

To see if your computer is running 32-bit or 64-bit Windows, do the following:

Open System by clicking the Start button , clicking Control Panel, clicking System and Maintenance, and then clicking System.
Under System, you can view the system type.


taken from Microsoft Site ('http://windowshelp.microsoft.com/windows/en-us/Help/41531554-d5ef-4f2c-8fb9-149bdc5c8a701033.mspx')

[Catamer]

Corsair is calling PC2 6400 because it is DDR2 memory. I figured this out by the way they named the DDR PC 3200 memory.

I believe most (if not all) of the 6400 rated memory is DDR2 so this should not be a problem with your motherboard.

[elsegundo]

my question on RAM:

Is it possible to mix RAM modules that have different timing?
For example, i currently have these: http://www.newegg.com/Product/Product.aspx?Item=N82E16820211066
but i also want to get these (rebate *drools*): http://www.newegg.com/Product/Product.aspx?Item=N82E16820227198

existing modules: timing is 5-5-5-18, 1.8volts, CAS latency is 5.
new modules: timing is 4-4-4-15. 2.1volts, CAS latency is 4.

will having 4 gigs total, two of the old and two of the new, cause any conflicts or instabilities? they're both 800MHz DDR2s.you MIGHT be able to make them work ok with the slower timings and higher voltage :P i wouldn't risk it, just get 4 (or 8) GB of the same thing, ddr2 is way cheap right nowi realized stating CAS latency is redundant. anyway.. thanks for the info. i'll have a look at other offers. yes prices are dropping but i'd like it to drop just a little more! lol

[Sam DeathWalker]

They will all run at the CAS5 speed but ram is very tricky that set up might work in 10 computers in a row and then not work in the 11th. Also differnt voltages is bad news for sure.

[Tsunami]

you get the rebate when you buy the motherboard and the memory together. if this is what you are doing than buy 2 sets of the SLI memory.

the timing should not cause any noticable performance loss. both memory cards will work in a normal 800 mhz motherboard but only the sli memory will work properly in an SLI motherboard. if you don't have SLI than don't buy it.