RAM and crap

[Odin]

Ok guys, I'm getting a new stick of RAM (512 is not cutting it anymore for me), and I need to know what specs are important for compatibility. In other words, how do I figure out what kind of RAM my mobo supports?

So far I found that it supports DDR200 up to DDR400 SDRAM. Does PC#### matter, and if so how can I find that out, since it's not listed in my manual.

[NutWrench]

If you know the exact model number of your motherboard, we can tell you for sure.

[Odin]

It's an ECS PM800-M2.

[IHerman]

I believe DDR400 SDRAM is the same as PC3200 DDR RAM.

PC3200 would be the fastest supported but your motherboard then.

[Foxy]

What speed is the existing stick of RAM? If it's lower than what you buy, both will run at that lower speed when you have them in tandem.

[Odin]

What speed is the existing stick of RAM? If it's lower than what you buy, both will run at that lower speed when you have them in tandem.

I'm not sure, I was trying to figure that out. Is there any software or anything that can tell me?

[IHerman]

Well, some motherboard's startup screens tell you at what speed the memory is running.

[Foxy]

CPU-Z should show it:
http://www.cpuid.com/cpuz.php

(Look at the SPD tab in the proggy.)

[ZaphodB]

Interesting prog Foxy, just one problem I have with it. I have PC3200 DDR2 which is 400MHz (boot up screen of bios even says it's set at 400MHz) but this cpuz says it's 200MHz.

[Wamplet]

You can go to a preferred memory vendor's website and look up your model there.

However, I did the work for you: \o




Kingston
KVR266X64C25/128 128MB 266MHz DDR Non-ECC CL2.5 DIMM
KVR266X64C25/256 256MB 266MHz DDR Non-ECC CL2.5 DIMM
KVR266X64C25/512 512MB 266MHz DDR Non-ECC CL2.5 DIMM
KVR266X64C25/1G 1GB 266MHz DDR Non-ECC CL2.5 DIMM
KVR333X64C25/128 128MB 333MHz DDR Non-ECC CL2.5 DIMM
KVR333X64C25/256 256MB 333MHz DDR Non-ECC CL2.5 DIMM
KVR333X64C25/512 512MB 333MHz DDR Non-ECC CL2.5 DIMM
KVR333X64C25/1G 1GB 333MHz DDR Non-ECC CL2.5 DIMM
KVR400X64C3A/128 128MB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM
KVR400X64C3A/256 256MB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM
KVR400X64C3A/512 512MB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM
KVR400X64C3A/1G 1GB 400MHz DDR Non-ECC CL3 (3-3-3) DIMM



Crucial
2GB kit (1GBx2) CT2KIT12864Z335 DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 128Meg x 64 US $292.99
2GB kit (1GBx2) CT2KIT12864Z40B DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 128Meg x 64 US $295.99
1GB kit (512MBx2) CT2KIT6464Z335 DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 64Meg x 64 US $147.99
1GB kit (512MBx2) CT2KIT6464Z40B DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 64Meg x 64 US $149.99
1GB CT12864Z335 DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 128Meg x 64 US $153.99
1GB CT12864Z40B DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 128Meg x 64 US $155.99
512MB CT6464Z335 DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 64Meg x 64 US $77.99
512MB CT6464Z40B DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 64Meg x 64 US $78.99
512MB kit (256MBx2) CT2KIT3264Z335 DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 32Meg x 64 US $84.99
512MB kit (256MBx2) CT2KIT3264Z40B DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 32Meg x 64 US $88.99
256MB CT3264Z335 DDR PC2700 • CL=2.5 • UNBUFFERED • NON-ECC • DDR333 • 2.5V • 32Meg x 64 US $44.99
256MB CT3264Z40B DDR PC3200 • CL=3 • UNBUFFERED • NON-ECC • DDR400 • 2.6V • 32Meg x 64 US $46.99



Corsair
CMX1024-3200C2 DDR-400 (XMS-3200C2) 1GB 2-3-3-6-1T
CMX1024-3200C2PT DDR-400 (XMS-3200C2) 1GB 2-3-3-6-1T
CMX1024-3200PRO DDR-400 (PC-3200) 1GB 3-3-3-8-1T
CMX1024-3200PT DDR-400 (PC-3200) 1GB 3-3-3-8-1T
CMX256A-3200C2 DDR-400 (XMS-3200C2) 256MB 2-3-3-6-1T
CMX256A-3200C2PT DDR-400 (XMS-3200C2) 256MB 2-3-3-6-1T
CMX512-3200C2 DDR-400 (XMS-3200C2) 512MB 2-3-3-6-1T
CMX512-3200C2PRO DDR-400 (XMS-3200C2) 512MB 2-3-3-6-1T
CMX512-3200C2PT DDR-400 (XMS-3200C2) 512MB 2-3-3-6-1T
TWINX1024-3200C2 DDR-400 (XMS-3200C2) 1GB Kit (2 x 512MB) 2-3-3-6-1T
TWINX1024-3200C2PRO DDR-400 (XMS-3200C2) 1GB Kit (2 x 512MB) 2-3-3-6-1T
TWINX1024-3200C2PT DDR-400 (XMS-3200C2) 1GB Kit (2 x 512MB) 2-3-3-6-1T
TWINX2048-3200 DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-1T
TWINX2048-3200C2 DDR-400 (XMS-3200C2) 2GB Kit (2 x 1GB) 2-3-3-6-1T
TWINX2048-3200C2PRO DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-1T
TWINX2048-3200C2PT DDR-400 (XMS-3200C2) 2GB Kit (2 x 1GB) 2-3-3-6-1T
TWINX2048-3200PT DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-1T
TWINX2048-3500LLPRO DDR-434 (XMS-3500LL) 2GB Kit (2 x 1GB) 2-3-2-6-1T
TWINXP1024-3200C2 DDR-400 (XMS-3200C2) 1GB Kit (2 x 512MB) 2-3-3-6-1T
TWINXP2048-3200C2 DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-1T
VS1GB333 DDR-266 (PC-2100) 1GB 2.5-3-3-3-1T
VS1GB400C3 DDR-400 (PC-3200) 1GB 3-3-3-8-1T
VS1GBKIT333 DDR-333 (PC-2700) 2GB Kit (2 x 1GB) 2.5-3-3-7-2T
VS1GBKIT400 DDR-400 (PC-3200C25) 1GB Kit (2 x 512MB) 2.5-3-3-8-1T
VS1GBKIT400C3 DDR-400 (PC-3200) 1GB Kit (2 x 512MB) 3-3-3-8-1T
VS256MB266 DDR-266 (PC-2100) 256MB 2.5-3-3-3-1T
VS256MB333 DDR-333 (PC-2700) 256MB 2.5-3-3-7-2T
VS256MB400 DDR-400 (PC-3200C25) 256MB 2.5-3-3-8-1T
VS256MB400C3 DDR-400 (PC-3200) 256MB 3-3-3-8-1T
VS2GBKIT400C3 DDR-400 (PC-3200) 2GB Kit (2 x 1GB) 3-3-3-8-1T
VS512MB266 DDR-266 (PC-2100) 512MB 2.5-3-3-3-1T
VS512MB333 DDR-333 (PC-2700) 512MB 2.5-3-3-7-2T
VS512MB400 DDR-400 (PC-3200C25) 512MB 2.5-3-3-8-1T
VS512MB400C3 DDR-400 (PC-3200) 512MB 3-3-3-8-1T
VS512MBKIT400 DDR-400 (PC-3200C25) 512MB Kit (2 x 256MB) 2.5-3-3-8-1T
VS512MBKIT400C3 DDR-400 (PC-3200) 512MB Kit (2 x 256MB) 3-3-3-8-1T

[IHerman]

And what about the crap? I saw to questions about that.

Anyway, you could also open your PC case and take the mem-module out to have a look at it directly.

[Iron_Man]

Interesting prog Foxy, just one problem I have with it. I have PC3200 DDR2 which is 400MHz (boot up screen of bios even says it's set at 400MHz) but this cpuz says it's 200MHz.

It shows 200MHz because your memory is DDR (double data rate.) You must multiply the 200MHz by 2. Which = 400MHz. :D

[Odin]

CPU-Z should show it:
http://www.cpuid.com/cpuz.php

(Look at the SPD tab in the proggy.)

Awesome dude. +25 awesome points.

[Phayzon]

CPU-Z should show it:
http://www.cpuid.com/cpuz.php

(Look at the SPD tab in the proggy.)

Forgot about that program. It changed quite a bit since I last used it :/

PC Wizard (same site) is usefull for identifying other hardware, for those interested.