Patriot Viper Steel DDR4 RAM 32GB (2X16GB) 3200MHz CL16 1.35v UDIMM Desktop Gaming Memory Kit Compatible with XMP - PVS432G320C6K

I got these chipsets for the new desktop PC I built, and they work perfectly. No problem at all with installation or system recognition. The performance utility I use reports that they are performing perfectly at their stated maximum speed. I have not tried over-clocking them, as I really don't need to. I'm not running a gaming system, it's just for graphics, and photo/video applications. No complaints at all - these RAM chips work great!

Nice . In real like a luxury

The compatibility and how it functions is very reliable. Fits perfectly in my computer very compatible. Does not crash and looks great

I Bought: Patriot Viper Steel Series DDR4 16GB (2 x 8GB) 4400MHz Performance Memory Kit - PVS416G440C9K1) Supporting HW.2) What I achieved.4) Problems I encountered.5) How I did it.6) I will post back in one month to give my one month feedback.1) So first of all here is my "supporting" hardware:Asrock Z370 Extreme 4 Mother board. ("Capable of 4133+OC Ram")i7-8700k CPU OC @ 5Ghz2) Second here is what I was able to achieve:4000Mhz @ 15-15-15-35 CR2**With my "supporting" hardware**3) At first I couldn't get the ram to boot over 3000Mhz, like at all! But I did adjust timings to 12-12-12-32 CR2 @ 3000Mhz and probably could have gone lower on the timings!4) How I Managed to get it to run at 4000Mhz.**Please follow all of these steps to a T!!**If you skip any of these OR do them out of order it can result in damaging your hardware, My instructions are safe but please overclock at your own discretion...NOTE: I THINK ASROCK MOTHERBOARDS PRIMARY RAM SLOTS ARE A2 B2!!!I was unable to achieve 4000GHZ prior to trying this out.Try my guide first then try swapping ram to A2 B2 slots.1 - Reset CMOS to restore bios default, in my case I HAD to use the CMOS reset method.Simply resetting to default settings in the UEFI Bios menu **DID NOT WORK.**(NOTE: Sometimes the CMOS Battery is located behind the Graphics card.)This will require you to power off your pc so save this review in a screenshot on your phone.Once you have successfully reset the CMOS and have default Bios proceed to step (2)***DON'T OVERCLOCK YOUR CPU FIRST! START WITH THE RAM!***2 - Set BLK frequency to 100 if it is not already set to 100.Make sure you're in DRAM settings and not CPU settings.If BLK frequency says 45, 43, 48, 37, or 50 you're in CPU settings...They should be linked but you need to be in DRAM settings.3 - Start at 4000Mhz for speed, set DRAM speed or "frequency" to "4000" or 4000Mhz, whatever option it gives you start at 4000Mhz if you do not see 4000 as an option but see odd numbers like 4016 it's because your BLK frequency is set over or under 100.00.4 - Set ALL other DRAM settings to "Auto"! If they aren't already? Manually type in "Auto"**********This is the most important step in order to keep things from going poof or zap.********************This is the most important step in order to keep things from going poof or zap.********************This is the most important step in order to keep things from going poof or zap.**********5 - THE MOST IMPORTANT STEPFind voltage settings, (May be in CPU settings etc just find VCCSA VCCIO voltage settings)Set DRAM Voltage to 1.35, UNLESS you have an XMP profile that says it uses 1.45If you see an XMP profile that says it uses 1.45 then Set the DRAM voltage to 1.45 this will be safe.MAKE SURE VCCSA Voltage settings are set to 1.15~1.30 **NOT SET TO AUTO**To Start, Set to VCCSA to (1.2)SET System agent voltage 1.10V~1.35V Start at 1.2MAKE SURE VCCIO Voltage settings are set to 1.15~1.30 **NOT SET TO AUTO**To Start, Set to VCCIO to (1.2)Navigate to "exit", -> Save changes -> and reset.**IF** it boots to windows and runs congratulations you have a starting point at 4000Ghz. Proceed to step (W)**IF it doesn't boot, blue screens, crashes, or enters vicious boot loop, enter bios for adjustments. Proceed to step (X)**IF** you are unsuccessful at entering bios, power down machine and repeat steps 1-4. Then Proceed to step (X) before saving and resetting.STEP X: You can try increasing DRAM voltage from 1.35 to 1.4.You can try increasing VCCSA, VCCIO, System agent voltage to 1.25, if this fails you can attempt 1.3 if that fails, You need to lower the DRAM Frequency from 4000 to 3800 and repeat until you have a starting point.STEP W: Ok, we have a starting point, now we can adjust our timings!**IF** you had instant success at hitting 4000Ghz, set your timings to 15-15-15-35 CR2 And attempt boot.If this works, lower until it is unsuccessful at boot and revert back to the lowest successful post.Fine tune for stability and run tests to ensure your configuration is successful.Now you can overclock your cpu.**ELSE**Start by setting your timings to 19-19-19-39 CR2 And attempt boot.If this works, lower until it is unsuccessful at boot and revert back to the lowest successful post.Fine tune for stability and run tests to ensure your configuration is successful.Now you can overclock your cpu.If this doesn't work Revert back to "Auto" in all the timing settings, boot into windows, install CPU-Z from CPUIDNavigate to the -> memory tab and write down values for:CAS# latency (CL)RAS# to CAS# delay (tRCD)RAS# Precharge (tRP)Cycle Time (tRAS)Row Refresh Cycle Time (tRFC)This is your starting point.Extra info:VCCSA, VCCIO, increase to 1.3 MAX (1.35 for the F it folks)1.5 is Max capable for VCCSA, VCCIO but seriously don't go past 1.3.for fine tuning set a lower Command Rate (CR) 440 for example, research and fine tune the other settings you have available to you!

I'm pretty happy so far. I was running G.Skill Trident Z NEO rated at 3600mhz at rated timings, 16/19/19/19 and they happily played along with all my CPU overclocking set at XMP2. Didn't seem to have any issues running at 4000mhz either (but realistically not worth it with infinity fabric and looser timings, etc.). Wanted to see what 4400mhz looked like so I purchased these. I had also picked up some Crucial Ballistix 3600mhz at 16/18/18/18 for fun and need a few kits since I'm building another PC so more kits available is all the better.One thing I notice with all the reviews (for all memory) is that they seem to be all over the place and some folks don't seem to grasp that you need to enable the overclocking profile in the BIOS with all of these overclocked kits, regardless of brand. READ about memory before you go swapping it out and understand, at least just a little, before ripping on any new hardware? Please?Any which way I threw in the Crucials first...and before I did that, I reset the BIOS to optimized defaults with the existing memory. Reboot to desktop. Make sure everything is fine and then shut down. Disconnect your power. Swap kits. Reconnect power. Reboot. Motherboard will recognize the change and allow you to go into the BIOS. Once there just leave everything at default (other than checking to make sure memory is running at its lowest rating, usually 1033mhz). Boot to desktop. Run a test. Make sure things are functioning as they should. Check the RAM timings with CPU-Z or something similar.My Crucials defaulted to 1333 (2666), a little different than I'm used to, but in any case, they booted fine to desktop. Ran Cinebench without issue. Rebooted and set XMP2 in BIOS. Experienced a bit of a hiccup...hit my reset after about 45 seconds to a minute and it posted and went to desktop. The difference from running 16/19/19/19 to 16/18/18/18 was...not much :) I didn't do anything other than run 3Dmark and Cinebech. Since these had the hiccup just booting to the rated settings I didn't feel comfortable exploring and just reset to optimal and shut down.I'm running an MSI MAG X570S Tomahawk MAX WIFI board with an AMD 3700X, NZXT Kraken X63 AIO, Sapphire RX5700XT graphics card and an EVGA 750 G+ PSU. Not the top of the line by any stretch...but I think this MOBO is pretty darned good so far...Now to the actual review of the Patriots...did all of the above and booted to desktop. Ran a test or two. check. Rebooted and switched to XMP2. Rebooted and straight to desktop at 4400mhz at rated timings. No issues, no hiccups. Ran a few tests. No issues...other than 4400mhz doesn't do much! Looser timings at higher frequencies? I'm sure some gamers will have something to say but just for testing/benchmarks it ain't worth it so far as I can see for the moment and just initial impressions. Infinity Fabric at 1800...worth messing with? Perhaps when I get past initial "simplicity"...This particular BIOS has a memory overclock "try it" function so I've tried it. Worked my way from fairly loose 3600mhz timings to 14/14/14/14. 3600mhz with tight timings are working nicely at 1.45v. That's as far as I've gone tonight using some simple pre-sets and I'm very impressed with this kit so far.I've got an AMD 5800X to swap in but wanted to see what this memory does with my current CPU. I think I may dig a little deeper...though I do hate overclocking memory. When things do go bad it can get ugly. I think this memory kit is very good though so far and makes me want to go exploring. My Tridents didn't give me much confidence and certainly with my little hiccup on the new Crucials those don't have much future use other than trying in another motherboard.As of 12/20/2021 I'm very pleased with this kit. This is the 2X8, 16GB kit rated at 4400mhz. It will do the rated speed on my MOBO. Your mileage may vary. But honestly, the tighter timings at 3600mhz have me wanting to go exploring to see how tight these things can run and at what frequencies and what voltage. Don't know if they are the coveted Samsung B die or whatever, but they are Samsung. The G.Skill Trident Z NEOS's are Hynix and the Crucial Ballistix are Micron...for a hundred and 10 bucks delivered, these are my favorites. Now it's time to go to bed or crash my computer (: