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Fast memory for A10-5800K

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I've got an Asus F2A85V-Pro mb with the AMD A10-5800K APU. It's got some old corsair DDR3-1333 chips in it (borrowed from the family computer) and I've got them running overclocked at 1600 - makes a huge difference! I'd like to get some DDR3-2400 RAM (fastest that the BIOS will support) but don't know what will work with my combo. The Asus qualified vendor list is confusing; I'd like either 8 or 16 gigs in two sticks, but I'm a little gun-shy about ordering RAM. I just returned some "Kingston HyperX Predator Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 2133 Desktop Memory Model KHX21C11T2K2/16X" because it was so freakin' unstable. Said it was 100% compatible, but I think that must have referred to Intel. I thought my CPU was dying. I started over, re-formatted my HDD, and it kept crashing during Windows 7 install. With the corsair sticks, it's solid as a rock (and overclocked to 4.4GHz) :D 

So... does anyone have any actual experience with fast memory in this motherboard? I just need something faster - a little disappointed in the graphics, they just need a little more umph, you know?

Thanks
-Mark

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Memory Expert

Here are the mobo specs from that mobo on ASUS website:
4 x DIMM, Max. 64GB, DDR3 1866/1600/1333/1066 MHz Non-ECC, Un-buffered Memory

According to NewEgg you can OC to 2400 but you said yourself the Kingston 2400 made it unstable and it's rock solid running Corsair at 1600.

I use nothing but GSkill RAM and have never had a single problem.

This is what I would go with...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
If it's not fast enough at 1866, you can try OC'ing it......lower voltage and better latency will help.

Well, I originally thought that 1866 RAM would be fine, since that's what the CPU runs internally, but then I got to reading about how the APU uses system RAM for its GPU, so I figured, well, faster the better, right? Does the [tighter timings] > [faster RAM with loose timings] still apply to APU applications?

Sorry if I sound dumb - it's been a few years since my last build, and my first attempt at an APU...

Faster can be better if you find a stable combo, but using stock stable timings and MORE RAM is what will work for an APU like the A10. At least for me. I went from 8 Gigs to 16 and saw a lot of improvement when the APU was working hard as team. Some apps/games may not see any and then some will freak you out! It depends on their codes etc I quess. I'm working on going to 32 Gig and liquid cooling for silence. Good luck.
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