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The original was posted on /r/sffpc by /u/yngbld_ on 2024-01-21 08:32:45+00:00.
I'm in the process of acquiring the following parts for a Fractal Terra build:
- Asus ROG STRIX B650E-I
- AMD Ryzen 7 7800X3D
- Thermalright AXP-90 X47 Full Copper
- Corsair 64GB 6000MHz CL30
- 2 * Samsung 990 Pro 4TB
- Asus ProArt RTX 4080 Super*
*I might swap this out with a 4070 Ti Super depending on benchmarks/value.
In terms of PSU, my current computer has a Corsair SF600 Platinum. I ordered a Corsair SF1000L Gold for the new build on the following assumptions:
- The higher wattage would be more capable of powering my chosen CPU+GPU combo (and then some);
- The additional headroom would somewhat "future-proof" the build, so I could update the CPU/GPU in future without much thought;
- The larger fan would make the whole thing run a little quieter.
I have since read that these two PSUs basically trade punches on noise levels at various loads (despite the difference in fan size). I have also read a number of Terra owners' recommendations of the case fan under a true SFX power supply. My question, then, is this...
Is 600W enough to power this build safely?
I've consulted a number of online PSU calculators, and they range from <500W (pc-builds.com) to >700W (msi.com), with PSU manufacturers generally recommending much higher wattage than hobby/retail sites. I don't really want to be on the edge of system instability/damage, but if the figures given by manufacturers are purely related to liability and upselling, it could save me some money to keep the SF600.