Title pretty much tells you all you need to know about my situation. In a turn of events tonight I’ve been gifted a used but working EVGA 3090 card to replace my seven year old 1070.
My current system hardware specs are:
CPU: AMD Ryzen 9 5900X 12-Core (upgraded from Ryzen 5 last year)
GPU: MSI 1070
MoBo: MSI MAG B550 TOMAHAWK
PSU - Corsair CX-550 550 Watt
x4 8GB Installed Memory
I also have a 2tb SSD drive with my OS and games installed, and 4 8tb HDD for media.
My main concern is with needing to replace my MoBo with a x3 PCi board and worries about my PSU not being powerful enough. I’m not particularly worried about my tower is a Phanteks Enthoo Pro PH-ES614PC_BK.
Thanks in advance!
The motherboard is fine, unless you want some of the overclocking features there’s really no need to go above the b550 chipset for a Ryzen 5xxxx series.
That CPU will be excellent paired with a 3090.
You will need more RAM. At least 16GB in a dual channel kit, though 32GB would be better. Going beyond that would be kind of pointless at this point.
The PSU you would definitely need to upgrade. You’d need a minimum of 750W, but going with a 1000W PSU would give you some headroom for future upgrades for a pretty minimal price increase.
Glad to see that the MoBo and CPU should pair without fault for the 3090. Truthfully I haven’t refreshed myself on hardware jargon since I built my PC around 2018.
That was a complete typo on my part, I meant to put x4 8GB for 32GB total.
PSU was expected, upgrading to a GPU that maxes 350W on its own. Will probably be looking into a 1000W unit on your recommendation, just for future proofing
As an additional note, if you’re comfortable doing so, I’d recommend going into the BIOS and undervolting the CPU down to 1.2 or 1.3 volts.
A common issue with the higher end Ryzen 5xxx CPUs is that they run a bit hot which prevents them from boosting clock speeds as high for as long as they’re able.
My last build very similar to yours, (3090, 5900x, 32GB RAM) and I was able to shave almost 10C off of the CPU temps by setting a CPU voltage offset of -0.15 volts.