G. Skill Ripjaws-X Main Memory 8 GB 2133 MHz 240-Pin 2x 4GB, CL9) DIMM DDR3-RAM Kit

Both sticks working at full speed, delivery time = somewhat slow.Testing & bought for a friend.In order to set these G.skills up & running on AMD boards,The "D.O.C.P" bios setting acts as XMP, so I just stuck it on the 2133/cl9 "Profile 2" setting (both profiles run fine but G-skill memory is programmed to run default at 2T!) and it works fine with my 'non-overclockable' A10-5700 (meant to only work with 1866 sticks/speed!)APU now runs at 114mhz, which keeps it roughly 40% of its stated 'Turbo' overclock limit.Novabench result = Ram speed running at impressive "7787 MB/s"Further info for others >Q:Why is my memory kit only operating at 1333MHz or 1600MHz?A:If on an Intel platform, please make sure that XMP is enabled.If on an AMD platform, please make sure DOCP or XMP-equivalent is "enabled".If XMP or XMP-equivalent does not work as intended or is not available, please manually tweak the BIOS memory settings for the following four settings, according to the information on the warranty sticker/ram package:DRAM FrequencyDRAM VoltageCL Timing (tCL-tRCD-tRP-tRAS)Command RateMake sure to Save and then Quit/Exit!

After having worked for Kingston Technology for 8 years, and having used Crucial (the commercial outlet of Micron Technology, one of the world's largest memory chip manufacturers, so you're essentially buying straight from the manufacturer) as the only other memory brand, I was a bit hesitant to try G.Skill memory.Choosing the right memory for your PC is not an easy job, with an ever increasing amount of brands, models and specifications to choose from.I have spent god knows how many hours reading reviews, forum posts, blogs etc. and it appears that enthusiasts tend to go primarily for OCZ, Corsair, Kingston, Crucial and G.Skill, with there not being an awful lot of difference between these brands, other than personal preference and a few, often minute, variations in specs.In some cases the advice given on which brand and/or model to buy boils down to "they're all great, just go for whichever is the cheapest".I ended up buying this particular set of G.Skill memory based on the following factors:- the timings: I have not found the timings offered by these modules on any other brand- it is exactly the same memory used and recommended by one reviewer in an AMD Trinity (Piledriver architecture) based system. My CPU is an AMD Kaveri processor (A10-7850K), based on the Steamroller architecture which is a direct continuation of the Piledriver architecture.- the seemingly excellent customer service offered by G.Skill, judging by the various posts I came across- the overall reputation of G.Skill memory- excellent price compared to similar (but not identical!) spec modules from Crucial, Corsair and Kingston- still stable at much tighter timings than the ones officially supportedWhile no doubt I would have had a good experience with the other, aforementioned brands, so far I don't regret my decision to 'defect' to G.Skill!One important thing to point out is that while this memory is sold as 2133 MHz memory, there technically is no such thing as 2133 MHz memory. Now this is not a con! Memory modules are manufactured to only two JEDEC DDR3 specifications: 1333MHz and 1600MHz. Any memory sold as higher speed than these two specs is memory that is guaranteed, by the manufacturer, to be overclockable to the advertised speeds, at the advertised timings.In order to guarantee compatibility with all motherboards, these higher speeds modules are manufactured to and will default to one of the JEDEC specs, In the case of this set of G.Skill modules, this means that when you place them in your motherboard, the BIOS will recognise and report them at 1600 MHz. In order to get these up and running at 2133 MHz, depending on your BIOS, you either simply enable the XMP profile, which is preset by G.Skill to 2133 MHz CL9-11-10-28, or you enter the values manually.Once I did this, the memory ran at the speed I paid for, and my system, while already fast, feels snappier than when it was running at the factory setting of 1600 MHz.

Fantastic Memory! There isn't much I can add to this review or thread as it may appear.I will tell you something though! I have a Gigabyte F2a88xn-wifi mini-itx motherboard and one of those new fangled super duper AMD A10 7850K cpu's and I was using some old outdated 1833mhz Crucial Tactical 8GB Kit Ballistix memory (it's actually old 1300mhz and I had it overclocked - believe it or not to 2133mhz without too many issues. However, clearly to me, there is indeed a huge difference between my old Crucial memory running at 2133mhz and this G.Skill Ripjaw memory at 2133mhz. I have both Far Cry 3 and 4 installed and WOW, what a difference in performance. I have just about everything set on full/ultra settings and I'm getting a huge frame rate increase. These are well worth the money spent. This will also be useful for other tasks such as editing video in Sony Vegas Pro.So as they say, the proof is in the pudding. I'm just glad I didn't settle for the G.Skill Ripjaw memory they sell for £10 less that runs at 11 cas latency. I was tempted, but I'm glad I got this as it will surely hold up it's end of the deal when GTA 5 is released soon. My motherboard see's two profiles, and I just set mine to Profile 2 and everything else to automatic and it's purring along beautifully.I highly recommend this! Delivery from Amazon was two days with free shipping!

There are lots of great reviews for this RAM but I just wanted to post my experience of this product, which unfortunately was negative. Although my motherboard is around 6 years old it supports DDR3 RAM of up to 2200 MHz, and should have had no problems with 2x4GB of G Skill Ripjaws DDR3 2133 MHz. However it wouldn't work in my system and after installing it my old Crucial Ballistix DDR3 1333 MHz wouldn't work either. I ended up having to reinstall the operating system, (Windows 7), and using DIMM slots which the G Skills hadn't been inserted into. I have upgraded memory a number of times before and have never experienced a problem like this. Unfortunately in this instance my attempt at sprucing up my PC with upgraded memory hasn't quite worked out. I also can't work out why 2 of my DIMM slots no longer appear to work as there is no obvious physical damage - the G Skills RAM snapped smoothly into place as usual. Hopefully this is just an isolated incident as the vast majority of reviews for this product are overwhelmingly positive.

Simply superb. I did my research and chose G.Skill Ripjaw and I am glad I did. Everything is running as smooth as can be.If I need more ram ( though I'm sure 8gb will be plenty for now ) I will be getting more of this. It is top draw high quality ram.

Still using them. Great buy!