I've had a bottle of EK-Ekoolant Blood RED for a few years, I bought it on 2014 to change the liquid from a Corsair H-series AIO, I only used a little and then closed the bottle and it has been stored since then. It has a date on top: 02-2013, and it also says: 2 years shelf lifetime.
They're converting the Windows UI to be more friendly with tablet and touch screen users. They learned about their mistake with W8 and now instead of changing the whole system UI in a single update, they're making little changes here and there with every update (even without announcing them) so...
Gskill Ripjaws 2400MHZ 16GB x 2. Good condition, has been installed on the same system since new, no original box, two sticks available (each 16GB).
RAM: $65 per stick.
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I tried a G502 for a while but it just doesn't fit my hand like I'm used with the MX518. Mine had a lot of wear but I've painted it a few times, also the cable has had some issues but also fixed it a few more times.
It's related to the drivers, I also have a M6400 (QX9300, FX3700M) and I had the same problem last time I reinstalled Windows, USB ports were dead. Tbh I don't remember exactly what I did because I did a lot of "tweaks" until they worked lol, but last thing was to unistall them from device...
It could be a short in the case -> motherboard, it had happened me a couple of times. I would remove the components from the case and build it somewhere else like over the motherboard box, with minimal components (cpu, 1 ram module, gp, etc).
I had a similar situation and used alcohol and awesome and rubbed it with one of those yellow and green sponges and it worked out great to remove all the rubber left. Just be careful not to moisten the inside of the mouse.
Guild Wars 2 definitely, easy to use and everyone has access anytime. The economy in the game avoids people to become rich by farming/selling stuff in the market so it help to maintain things at reasonable prices.
Mouse - Logitech MX-518 (old version)
Keyboard - Logitech G15
I have been thinking about upgrading them for a while but I just don't find a good reason to do it since they're still working like a charm.