AdviceRAM speed issue
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AdviceRAM speed issuePosted:

Wraith
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So yesterday I bought another 2x8gb kit of Corsair Vengeance RGB PRO RAM so that I have 32gb in total however I have ran into a problem when setting the speed to 3200MHz. I have tried clearing the CMOS as many sites have suggested however that did not work and I am still getting the same issue.

When I set the D.O.C.P. to the overclocked setting, it will reboot and then it will try to boot 3 more times before saying that the RAM settings have been reset due to it failing on boot.

Here is a screenshot of the settings along with how my RAM currently looks in task manager

My PC worked fine with 2x8gb running at 3200MHz but since I added 2 more sticks, it only lets me boot at 2133MHz.

PC Specs

CPU: AMD Ryzen 7 2700X 3.7 GHz 8-Core Processor
CPU Cooler: Noctua NH-U12S chromax.black 55 CFM CPU Cooler
Motherboard: Asus ROG STRIX B450-F GAMING II ATX AM4 Motherboard
Memory: Corsair Vengeance RGB Pro 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory
Memory: Corsair Vengeance RGB Pro 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory
Storage: Samsung 970 Evo Plus 500 GB M.2-2280 NVME Solid State Drive
Storage: Intel 660p Series 1.02 TB M.2-2280 NVME Solid State Drive
Storage: Seagate Barracuda 2 TB 3.5" 7200RPM Internal Hard Drive
Video Card: Gigabyte GeForce RTX 2070 SUPER 8 GB WINDFORCE OC 3X Video Card
Case: Corsair iCUE 465X RGB ATX Mid Tower Case
Power Supply: Corsair TXM Gold 650 W 80+ Gold Certified Semi-modular ATX Power Supply

PCPartPicker Part List
#2. Posted:
Adam
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Seen this happen a fair few times. RAM is probably one of the most finicky bits of hardware in terms of that if both sticks ain't exactly perfect, they're not going to work together.

Just for my sake more than anyone's, could you take a picture of all 4 sticks and there information. You should have some information on 1 side. My guess is that the timing is ever so slightly out. Could be that voltage isn't happy but your motherboard should be able to sort that out on it's own.

Could be worth while in dropping all 4 sticks down to 3000mhz and seeing if it enjoys that. Else, send all 4 back and get a 2x16GB kit.
#3. Posted:
Craig
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Just unlucky as far as I'm aware. Corsair don't actually manufacture their ram so it's likely that it's because you have 2 different part codes using silicone from different manufacturers, Corsair use anything they can get their hands on for the right price.

I'd test this by taking out the original 2x8GB modules, installing the new modules and seeing if this will allow the machine to boot with the 3200MHz XMP profile active, this will tell you if it's just a faulty stick/XMP profile or an incompatibility between the different part codes.
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