Patriot Viper Steel 16GB Kit DDR4-3400 CL16 (PVS416G340C6K) - Reviews

(4.5)

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31.12.2019

I previously left a negative review of this product as it didn’t quite perform out of the box as well as it should have, but after some emails with the manufacturer, and some of my own research I was able to eke out more performance from this RAM than was advertised.The manufacturer got back to me with the maximum safe voltage of the RAM sticks, and explained how I could choose one of my motherboard’s default RAM profiles (RAM settings that should work, but will likely run at higher voltages and looser timings than your RAM can actually do, but that’s to ensure compatibility). Picking one of the default profiles worked,and then tuning it manually to match what my RAM was supposed to do out of the box fixed the problems - but I shouldn’t have had to do this in the first place.However I did say I was able to eke out more performance. After saving the settings for how my RAM should’ve been working out of the box, I had a look at some of the information concerning this ram in particular. I used a program called Typhoon burner to find out what type of RAM chips it contains - Hynix CJR chips. I also used another program called the 1usmus DRAM calculator (this program estimates I can overclock my ram to as high as 4133MHz), to get a good idea of where to start from to get better performance out of my RAM.I have successfully clocked this RAM to 3600MHz @1.36V (up from 3400 @1.35V), and tightened the timings safely to 16-19-19-36. Whilst two of those timing numbers may be bigger than the advertised 3400 16-18-18-36, you might expect some performance loss, but since I’m running this RAM in a 3rd gen Ryzen system, the performance gain from going to 3600MHz massively outweighs this. I’ve also tightened many of the other RAM timings in the bios, (and stress tested the system) this further outweighs any performance loss, you might be concerned about. Additionally the timings are measured in clockcycles, which get shorter if you increase the speed of the RAM in MHz.To anyone who wants to take this RAM further than I have, mine also works at 3666MHz @1.37V 16-20-20-38, but I haven’t really looked into tightening that up. And it boots, but fails a stress test at 3800MHz @1.39V 16-22-22-42 - honestly I think having a cas latency of 16 was too optimistic, but I didn’t have time to try finding stable settings for it.I’m giving it 4 out of 5 stars, because it didn’t work out of the box, but the manufacturer was very helpful in helping me get it to work properly.The fact that I was able to overclock it to run better would make me consider giving it 5 stars, but I know not all users will overclock their RAM, and some users may get RAM that is ”a dud on the silicon lottery” i.e. it will only be able to perform exactly as advertised at best, and no better. So at 4 stars it shall remainMy original review can be found below:It wouldn’t run at the rated XMP profile of 3400MHz 16-18-18-36 @1.35VI’ve been able to get it to run at those timings at 3200MHz @1.36V though (using one of the default profiles on my motherboard). I’ll attempt to clock it higher manually to at least the XMP profile, but it’s quite bad that it doesn’t work properly out of the box. I expected better