Reduce energy usage?
Reduce energy usage?
Is there any way to reduce the idle power usage of this setup? The system runs at 106W right now, which is quite high. Maybe a BIOS update or some tweaks could help. Also, note that the measurement is taken from the wall and only the PC is considered, not including the screen. The PSP model you mentioned is a pure power 11 with 600W and 80+Gold certification. Best regards, Asger
Yes, switching to a Windows power plan focused on saving power can greatly improve efficiency. It also enhances responsiveness.
Hey, I'm checking how you're tracking it. If you're talking about drawing power from the wall outlet, that's typical for high-end systems depending on the PSU you use. With efficient chips and a 100W supply, you're getting close to the minimum possible for a desktop. Both the 13th and 14th generation models plus the RTX40 are very power-efficient and stay low. Your CPU should run under 10W idle, even while typing or browsing. The GPU should manage around 20W with three monitors and drop below 20W with one. Overall, you'll likely stay under 40W at all times, though other parts of your PC might push it up to about 100W from the wall. Compared to setups like the 7900X+7900XTX with three monitors, you could end up using around +200W idle on the same machine. Also, changing Windows power plans—even to "power saving" or undervolting—won't significantly reduce your overall wall draw below 100W. What I'm saying is that 100W is just the most economical option. Turn off extra monitors and opt for a shorter sleep period to save energy.
Have you actually tried this tho? I've done a lot of tests and with a 13900KF the PC pulls the exact same from the wall in all power plans on idle. From the "Ultimate performance" to "Power saver" there is virtually no difference in GPU/CPU idle power draw in HWinfo or the watt meter from the wall. Power saver on reduces power draw during higher loads by limiting the CPU.
The idle usage isn't that impressive. With my monitor, speakers, PC, Precision 3420, and M1 Mac Mini (which is folding), my power consumption is around 170 watts. Removing the monitor brings it down to roughly 115-120 watts. I pushed the voltage a bit low, which actually improved performance, and my idle draw dropped from just over 100 to the mid-80s.
I believe it might depend on your PSU's performance, but aggressive undervolting still brings you into the mid-80s range, which matches what others are experiencing. If I keep both the CPU and GPU at full voltage without any undervolt, I reach around 100 watts. On a system with a Corsair HX1200, 13900KF, and a 4080, I could disconnect all monitors, speakers, and backboard cables to maintain mid-90s power draw. The difference stays between 20W and 30W, likely influenced by the PSU's efficiency.
Thank you for your response. I attempted Power Saver, but it only reduced the maximum number of P-Cores below that of the E-Cores, without affecting idle power consumption.