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With the availability of more affordable liquid nitrogen pots, more and more users are starting to overclock using liquid nitrogen. However there is still some mystery about how its done and how the system is prepared. In this video I will take you through the process of insulating the motherboard, and show you how to get started overclocking with LN2. I used the folliwing hardware when I shot this video: Intel® Core™ i7 990X Extreme Edition CPU Asus Rampage III Black Edition motherboard Asus ROG Xpander (allows 4-way SLI) NVIDIA® GeForce® GTX580 (x4) Corsair Dominator® GT memory (CMGTX2) Corsair Professional Series™ Gold AX1200 PSU (x2) Corsair Force Series™ SSD
Towards the end of May this year we launched our Dominator® GT CMGTX7 DDR3 memory upgrade kit. This kit consists of two 4GB memory modules for a total of 8GB of memory. They are rated at 2400MHz 9-11-10-30, which make it the fastest 8GB production DDR3 memory kit available. The last time I overclocked high density modules was when I was testing the 16GB Vengeance kit, which overclocked to 1921.8MHz. You can read more about my earlier Vengeance overclocking run on the Corsair Blog. Since I love pushing components to their limits I wanted to see what the new Dominator GT kit could do. I started off with one of my favorite motherboards for memory overclocking, the GIGABYTE™ GA-P55A-UD4P along with an Intel® Core™ i7-870 Processor. For the cooling I was using a single stage phase change unit to cool the CPU. This is very similar to your refrigerator however it cools only the CPU, it can get the processor as cold as -40°C. Later on in the testing I used a liquid nitrogen container by K|ngP|n Cooling to cool down the memory. This special container called the Dominance Memory Cooler was specifically designed to fit on top of the Corsair Dominator memory modules. The rig was powered by a single Professional Series™ Gold AX1200 power supply and for the SSD I used a 120GB Force Series™ drive. I started off by testing the maximum frequency I could run at the stock timings. After about an hour of testing I was able to reach a frequency of 2508MHz. This was a 108MHz overclock that ran without any issues. After reaching 2500MHz I wanted to go even faster. So I decided to test the modules with looser timings and go for the absolute maximum speed. I started out by going to 2550MHz, then to 2600MHz. I was shocked to see the GTX7 kit hitting these kinds of frequencies, especially because this was a high density kit running in dual channel mode. I wasn't about to stop there though, I kept on pushing and soon was breaking 2700MHz! I asked myself could it do 2800MHz? I kept on pushing and hit a wall at 2796.2MHz, less than 4MHz shy of 2800MHz. Knowing that I was not going to be able to sleep unless I hit 2800MHz with this kit, I had to do something to get those last few MHz. I took the extended fins off the modules and mounted the Dominance Memory Cooler on top of the Dominator GT memory and filled it with liquid nitrogen. Cooling the memory helped the memory modules get that last little bit and I ended up with a frequency of 2819.8MHZ! I was completely blown away by the results, considering reaching this frequency previously meant you had to use a single module! I not only achieved that result with two memory modules in dual channel, but I did it with a high density kit. To put this in perspective this is only 156MHz shy of what I had previously reached with a single Dominator GT CMGTX6 module. You can go back and read about that CMGTX6 overclock run to 2976MHz on the Corsair Blog too.
This blog is going to show you how easy it is to upgrade your Apple® MacBook® Pro to 8GB of memory. The total time to upgrade your MacBook’s memory is under 10 minutes. I used a MacBook Pro 17-inch mid-2010 model, and upgraded it from its current 4GB kit to a Corsair 8GB Mac Memory kit. To upgrade your MacBook's memory you will need a Phillips #00 screwdriver as the screws are very tiny. Start off by unplugging your MacBook Pro from the power source and anything else it may be connected to. Then place it upside down on a surface that will not scratch the lid of the laptop. Now carefully remove the ten Phillips head screws circled in red. It is important that you keep track of where each screw goes, as there are three different lengths of screws. Below you can see I laid out each screw according to the hole that it belongs in. Once all the screws have been carefully removed you can now remove the bottom cover. The cover will come off fairly easily. You can use your finger nail to get under the cover and lift up in an even manner. You should not use a screw driver to pry the cover off as you will scratch or damage the laptop. Now that the cover is off you can set it aside. Before touching any of the internals of the laptop you should touch the metal exterior of the laptop to ground yourself. The area circled in red would be a good area to ground yourself. As you can see this MacBook has already been upgraded with a Corsair Force Series™ SSD however the memory has not been upgraded. The memory modules are located near the center of the laptop. To remove the first module, gently push the levers circled in red outwards. The memory module should then pop up at an angle. Gently grab the sides of the module (circled in red). You can now remove the module from the slot by pulling the module towards you. Do not try to lift the memory upwards as that may cause damage to the slot and the memory. Now that the first module has been taken out you can remove the second module following the same procedure. Note that the levers for the second module may be hard to see, as the first set of levers are directly above them. After both of the old modules are out of the machine, line the notch (circled in red below) in the new module up with the memory slot. To insert the new module you will need to slightly angle the module similar to when you released the levers. Once the module is inserted into the slot gently push down on the module to lock it in place. Finally repeat the same process to put the second module in the top memory slot. Now you can place the cover over the bottom of the MacBook and tighten all of the screws down. Finally check that all of the memory is being seen by going to “About this Mac”. If it looks like the image on the right below, congratulations! You have successfully upgraded your MacBook's memory.