what is DDR3 800 non-ECC, un-buffered memory?

Guyz, long time I didn't build a computer in old times there were only few variants of ram, now I see DDR2,3 sodim desktop bla blah my heads spinning

I bought this MB: ASRock > Products > AD525PV3

And it says, it supports 2 x DDR3 DIMM slots, 800 non-ECC, un-buffered memory.

I believe 800 means MHZ. I have no idea what is non_ECC/un-buffered. You care explain? thanks!

And if I get higher MHZ ram, will it still work with this MB?

 

Don't worry about that stuff. Just buy regular DDR3 desktop memory.

 

1) Yes, the "800" in the description refers to 800Mhz.

2) Yes, if you get higher Mhz RAM (e.g. 1066Mhz, 1333Mhz), it will still work with this motherboard. The RAM will run at 800Mhz, even though the RAM is capable of running at higher speeds.

3) Don't worry about the non-ECC / un-buffered part. If you don't know what that means, just think of it as "normal" RAM for laptop and desktop computers.

The stuff that is ECC / buffered RAM is typically for servers, and is much more expensive than the "normal" RAM that you will be buying for your desktop computer.

 

So this: INFINEON 512MB 1RX8 PC2-3200R-333-11-A0 240 PIN DDR3

will work fine?

kent1146 thanks for explaining +rep.

 

No, that will not work. I would not recommend you get that RAM, for two reasons:

1) It is DDR2 RAM, not DDR3 RAM. The PC2-3200-333 indicates that it is DDR2 memory running at 333Mhz, and not actually DDR3 memory. I believe that the description for that item is wrong.

2) You don't want to get 512MB. RAM is so cheap, you will want more than that. I don't know what country you live in, but you can easily find 4GB (2x2GB) RAM kits for about $20 USD new, and 8GB (2x4GB) RAM kits for $40 USD new. You might as well get at least a 4GB or 8GB kit, since they are so cheap.

 

damn, ebay listing! looks like an error.

ah sorry, I didn't mention... I want to go as low as possible, I'm building a NAS box. I will probably run freeNAS7. I want lowest possible power consumption.

this: 1GB DDR3 240pin PC3-10600 XPS730B/1G

looks fine right?

 

Well, RAM typically doesn't take up too much power... low single-digit watts, at most.

But if that is still the case, I'd recommend you go with a single stick of decently-sized RAM, like a 1GB stick. You can get one of those new for about $10.

 

Any DDR3 desktop RAM modules should work, up to 2 x 4 GB sticks. But desktop related questions should be referred to Desktop Review.