Pros: 2GB per stick, good heat sink, low profile, good timing, can run at 4-4-4-12.

Cons: 1 pair was DOA, requires 2.1V min to run at 5-4-4-15 so not all motherboard can support it. Be sure to use in motherboard which allows to configure voltage.

Overall Review: 1st I have Ord Duo CPU cooler which makes impossible to use high-profile memory because it cover memory slots with one of the fans. So this memory works best in my configuration. Second I had to bump voltage up to 2.4V to make 4x2GB configuration run smoothly on ASUS P5N-E motherboard. This can be a MB problem or memory controller problem or BIOS issue. Anyway, 2x2GB @ 2.1V run fine. Adding another 2x2GB causes all king of crashes. After a few evenings I figured out that 4x2GB config causes voltage to drop from 2.1V to 1.8V approx which is too low for those RAM sticks. After gradually increasing voltage I came up with 2.4V. RAM is stable now, no overheating. I assume 4 stick draw to much power which causes memory voltage to drop. But it's not RAM problem, it's MB problem.

Pros: I have 8gb running with vista 64, q6600, evga 780i mobo and i hardly ever use over 40% of the memory.

Cons: none

Overall Review: just a note, if you are installing vista 64, you will only be able to use one stick when you first install the OS. Go to microsoft and get the patch. then you will be able to use all four sticks.

Pros: I called OCZ to ask a question about the timings reading different then specs on my EVGA 780i motherboard they answered the phone within 30 seconds Awesome Support and answered my questions promptly. I will by OCZ products again!

Cons: None

Overall Review: I run 2 EVGA 8800 GT in SLI with 4 GB of memory reads 2.2 GB in XP Pro this is normal due to operating system restrictions. You cannot overclock your CPU with SLI enabled in the Bios but also with SLI disabled you can adjust the memory timings to 5-4-4-15 2T manually and set the correct voltage setting of 2.1 v mine read 1.8v initally.

Pros: I can run these at 5,4,4,13,2t 4,20,4,9,7.8 from 800mhz to 850mhz. Passes prime95 and occt testing.

Cons: none yet. must be lucky have bought 6 sets with no problems.

Overall Review: Have ran timimgs set manual from above with these setups: e8400 @ 3.825ghz, evga 680i mobo,ram @ 850mhz 2.1v e6550 @ 3.0 ghz, evga 650i mobo,ram @ 800mhz 2.1v q6600 @ 3.0ghz, evga 750i mobo, Ram @ 800mhz 2.1v q6700 @ 3.5ghz, evga 780i mobo, ram @800mhz 2.1v

Pros: Super easy to overclock with my NVIDIA chipset 780i motherboard using the memory's SLI expert mode. Overclocked my Q9450 CPU to 3.5GHz, which makes the FSB ~440MHz. My memory overclock is link/sync so that makes it run at 875MHz. Bios picked all the ram settings automatically, ran memtest86 overnight with 0 errors.

Cons: Ordered two sets of ram (8GB) for my vista x64 OS. One of the sticks was bad, the computer would beep and not boot when installed. Had to RMA. Newegg took its time sending a replacement. Replacement worked fine though, and now I'm happy with the system.

Overall Review: Windows vista rates memory at 5.9. Love having 8Gigs. 4 eggs because had to RMA and newegg was slow sending replacement. Otherwise this memory is excellent.

Pros: Good value for the money for boards that are not picky with RAM.

Cons: First kit arrived with one stick that was out and outright defective; exchanged for another one (meanwhile the original rebate promotion expired, though a new one was issued for the same amount,) and kinda sorta got it to work. System works for a while then becomes unstable; verified by booting from Vista DVD; boots fine if done when first powered on, bluescreens if tried again after more than a few minutes. Leaving automatic timings of 6-6-6-18 alone does not solve the issue. This RAM does not perform to spec (which is 800 MHz, 5-4-4-15,) at least not on my system.

Overall Review: RAM used on a Gigabyte GA-M57SLI-S4 motherboard running an AMD Athlon 64 X2 5000+ Black Edition processor. I had this same issue with Patriot Extreme Performance memory; Gigabyte tells me that only modules running at 1.8V will work fine; this RAM runs at 2.1V, and the option to increase the voltage is in the BIOS for the GA-M57SLI-S4. I also have an Intel DG965WH board running a 3.2 GHz Pentium D; I didn't test the OCZ RAM in it, but the Patriot memory worked fine, even with the tight timings and the lack of an option to increase the voltage. This stuff may work fine in some systems, but not on a Gigabyte board. Since the memory controller is part of the Athlon 64 processor, this may also come in to play, but getting a straight answer from an authoritative source has proven to be an act of Congress. I've given up on these OCZ modules and ordered some Mushkin modules - maybe they'll work.

Pros: It's really hard for me to explain my amazement with this RAM. I still remember the days of buying RAM and looking really close to see the name of the chip manufacturer to see if I'd gotten an overclocker or a known dud. I've pretty much been limping my old comp along and hadn't built a box in awhile...but decided to go with this RAM because it was the only 4GB kit approved for my eVGA 780i board. Not a single issue. I plugged the RAM in and it does its thing. I haven't tried to overclock it yet, but it taunts me...trying to tempt me into doing so from the BIOS. I REFUSE, RAM! Stop trying to turn me to the dark side again!

Cons: I fear ninjas will come in through the window and try to steal my RAM, thinking they are a pair of gauntlets.

Overall Review: This is excellent RAM by a well known manufacturer. OCZ doesn't mess around. If you want good RAM...get this stuff. You won't be sorry.

Pros: Nice tuning guides by OCZ, with my 680i chipset I can run 4GB of this ram @800 4-3-3-8 or 1066 w/ 5-4-4-15 timings. Easily stable with just one 4 GB kit installed. OCZ also has tuning guides for other boards as well. Rated 5 eggs because it works well with one kit, but 8GB takes some tuning.

Cons: Ordered two, one was DOA. To get two of these kits running, I had to push the voltage past 2.1v, running @2.2v now with DDR2 800 & 5-4-4-15. I need to do more testing to see if I can lower the voltage a little and stay stable

Overall Review: Haven't tuned much since I got the whole 8GB, I did boot 8GB @1066 speed but it had issues. Windows Vista Home Premium 64 Bit Abit IN9-32x MAX MB Intel C2E QX6700 8GB OCZ DDR2 800 BFG 8800GTXOC WCE 3x WD 320GB SATA in RAID 5 Corsair 750w PS