Any warning on totalling more memory (RAM) to my fresh Mac Pro?

I only purchased a new Mac Pro Quad 2.66 near the following specs:

2.66 GHz Dual-Core Intel Xeon
1GB 667 DDR2 FB DIMM ECC-2x512
NVIDIA GeForce 7300 GT 256MB
250GB Serial ATA 3Gb/s drive
500GB Serial ATA 3Gb/s drive
16x SuperDrive DL
Airprt Extrm & BT 2.0+EDR

The additional memory from Apple is so expensive. I'm looking at other suppliers and I'm wondering if near are any pitfalls I should watch out for.

I'm currently looking at 2GB (2x1GB) Mac Pro DDR2-667 Fully Buffered Memory from Memoryx.lattice.

Thanks in finance.

Answer:
You should be fine. I have 3 Mac's. MacBook Pro x 2 and Mac Pro w/ 6 GB of aftermarket memory. Apple will other tell you to use their memory, they want your money.
You can run a free examination at http://www.crucial.com and find out what kind of RAM (memory) your computer requirements. It will automatically test your system and explain to you what you need and hold in the computer (each slot).

You can receive cheap memory at http://www.tigerdirect.com or http://www.newegg.com
nice system, check out ocz tech......
I'm jealous. I get my memory upgrade for my powerbook at Crucial.com aver 2 years ago. No problems at all.
That's the item with Macs, you can't use a short time ago any memory but many third group memory modules will work. Assuming you know the kind you stipulation, based on that schedule you do...

First things first, keep matched pairs, this offer the best performance. You could install an auxiliary 2GB (2x1GB) or get rid of your current 2x512MB modules and attain 4GB... assuming it has four memory slots. You could even acquire 4x2GB modules but that would be slightly expensive.

Brands I've known to work within Macs are Kingston, Crucial sometimes G.Skill but I don't trust them. 90% of the time Kingston and Crucial modules will feel right at home within your Mac. If not, Newegg has a totally generous return policy. I would also stir with Newegg when it comes to hardware purchases, never sent me down a wrong turn, never denied my compensation... go first class... turn Newegg for all your hardware requirements.

Macs have a no tollerance when it comes to memory, it will any accept it or it won't. It will any boot or it won't, there is no middle ground, if it doesn't after installing contemporary memory then newly take it out and adjectives should be as it was. SHOULD BE is no promise but is a "most case" scenario simply.

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