G.SKILL 4GB (2 x 2GB) DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model F2-8500CL5D-4GBPI-B

Pros: Installed on a new ASUS M4A785-M/ AMD Athlon II x2 3.0GHz combo purchased here at Newegg without even blinking an eye. Very impressive system! Very fast!!! Would highly recommend this product. I have G.SKILL in three different projects of my own and have had zero problems! If more people would research more before they purchased there components I'm sure there wouldn't be any bad reviews on G.SKILL, this RAM is great!

Cons: NONE. If it were a little less expensive would have made it even better, but you get what you pay for.

Overall Review: As mentioned above, I believe most people don't research there needs enough before there purchase. I'm definitely no guru here, all I did was research recommended RAM at mobo web site (ASUS) and everything works like a charm. Been running this brand for 2 years now and for the price I don't think you can beat it! Running Win 7 x64 with lighting speed for a few months now with my 2 year old ASUS A8V-XE and AMD Athlon 64 x2 set up which I also purchased at Newegg and couldn't be happier! I've also installed this brand in several costumers PC's and have never heard of, or experienced any problems.

Pros: Great memory. Set the voltages and timings and ran 1066 with no problems. It has been stable for 3 weeks now without any issues. Noticeable speed increase loading programs over the DDR2-800 I had before.

Cons: People that don't know what they are doing and then give bad ratings.

Overall Review: I had bought 4GB of another brand that was bad so I returned it and bought this memory. Glad I did. E8400 @ 4.0 Ghz Abit IP35 Pro GTX275 4GB G-skill Pi Black

Pros: Only 2.0v and deliver 1066MHz with 5-5-5-15 timings. I got these replace a 4 x 1GB 1066MHz 2.2v kit (from that big brand that starts with a “K”) that would not run stable at 1066MHz no matter what I tried. First time buying G-skill, but the reviews seemed solid so I ordered two of these 2 x 2GB kits and I have been very pleased with them. No memory errors with Windows 7 memory diagnostic tool. Heat sinks are big and of good quality, just make sure they will not be obstructed by your CPU cooler.

Cons: Price. If you have an AM3 CPU on an AM2+ Motherboard, you are probably better off just buying a new AM3 Motherboard and some newer DDR3 RAM. For the same price as two of these 4GB DDR2 kits, you easily can buy 8GB of DDR3 RAM and a new AM3 Motherboard. If you, like me, have an AM2+ CPU and AM2+ Motherboard, then this is the way to go; just be OK with the fact that it will be an expensive option.

Overall Review: I do not know why, but at first the computer would kept locking up when setting the timings manually. I would set the voltage to 2.0v (also tried 2.1v) with 1066MHz frequency and 5-5-5-15 timings. Upon saving and exiting the BIOS, the computer would not post. I then set the voltage to 2.0v, frequency to 1066MHz, and set all other timings to AUTO. Motherboard would set timings to 5-7-7-20. I then started to manually decrease timings, one at a time, at intervals of 1, until reaching the 5-5-5-15 settings as advertised. It was a little time consuming having to save/exit the BIOS so many times, but it was worth it; have not had any problems since then.

Pros: It was relatively cheap compared to other manufacturers. Its very fast and it looks nice in the case. Great heatsinks. Heatsinks also double as a handle if you dont have a lot of room to work (although I dont think they're supposed to be used as a handle.)

Cons: Quite tall. Might cause a problem if you have an after market cpu cooler on a board where the cpu and memory are close together.

Pros: Bought 2 sets of these to run 8 gig in Windows 7 64 bit . Have a Gigabyte EP45 UD3P MB. Detected the RAM at 1066mhz. All I had to do was set the proper voltage in the BIOS. Easy install. They passed thru memtest and the three benchmarks I like to use with no errors.

Cons: The price. Ouch! But Newegg sent me a promo code that I could apply to them, so I went for it and picked them up.

Overall Review: The heatspreaders may be a bit much but they look cool. They are a bit tall so make sure your CPU Fan allows enough clearance for them to fit. I wanted to go up to 8gig with the least amount of hassle. This G-Skill RAM has done just that. This RAM is performing well and has given me zero issues.

Pros: - Good memory for the price - Looks sharp in my machine (black and red case mod) - Good heat dissipation - Good performance

Cons: - Heat sinks stick out a little far - close quarters with my CPU heatsink but no major issues - Have to configure manually in BIOS

Overall Review: I purchased this memory as an upgrade for a machine that I built a year ago. I was originally running 4GB (2x2GB dual-channel) at 800Mhz and bought two of these kits to upgrade to 8GB at 1066Mhz. When I initally booted my machine the memory came up at 800Mhz clock speed, but it was very easy to set timing, voltage and clock speed in the BIOS according to the specs printed on the product packaging. Once I did that and rebooted, I had no other problems. I ran a burn-in for a few hours and benchmarked my system. So far I'm pleased with the performance. The heat sinks stick out a bit - no major issues but close quarters w/ the CPU heat sink. On the up side they catch air flow in the case and have good heat dissipation. I've done some case mods with a black and red color scheme, and these sticks match nicely. Setup was dirt simple, but if you're squeamish about manually configuring the BIOS and want to just install it and have it work, you may want to consider something else.

Pros: Very Fast and very Stable... Stays cool to the touch in my Antec 300 case... Glad I picked it up!

Cons: None.

Overall Review: System specs : GIGABYTE GA-MA790GP-UD4H - Mobo ASUS EAH4870 DK TOP/HTDI/512MD5 Radeon HD 4870-Vid AMD Phenom II X4 940 - CPU G.SKILL 4GB (2 x 2GB)1066 F2-8500CL5D-4GBPI-B - RAM ZALMAN CNPS9700 - CPU Cooler CORSAIR CMPSU-750TX 750W - PSU Antec Three Hundred - Case SAMSUNG 22X SH-S223F - DVD burner 2x Western Digital 1TB - Hard Drives

Pros: Runs fine, stable, great heat sink

Cons: NONE

Overall Review: Mobo detected as ddr2-800, manually change values on bios to ddr1066 5-5-5-15 and runs fine as advertise