Should I Underclock?
Should I Underclock?
I'm not a gamer, but I own an FX 6300 with a Zalman aftermarket cooler. My setup runs about 12 hours daily, with multiple Chrome tabs, an IP camera viewer, Windows Media Center for live TV (HD Homerun tuner), various Microsoft files, and occasionally a PDF or MP3 player. I've used AMD overdrive to adjust the CPU core multiplier from 17.5 to 9.5 and lowered the CPU VID from 1.3125 to 1.25V. This gives me a frequency of 1900Mhz with roughly 20% utilization across all six cores. The only heavy task I do is ripping DVDs with DVD Shrink.
Is there any advantage in slowing down my CPU long-term? Given it's been running for over five years, I'm curious if this will help prolong its life or save power. I have a Seasonic G series 450-watt PSU.
Mjslakeridge is sharing his experience with his setup. He uses an FX 6300 with a Zalman cooler, running for about 12 hours daily. His environment includes multiple Chrome tabs, an IP camera viewer, Windows Media Center for TV, Microsoft documents, and MP3 playback. He also listens to music via Windows Media Center. His CPU settings were adjusted using AMD overdrive, lowering the core multiplier and voltage. The system runs at around 1900Mhz with roughly 20% utilization across six cores. The main task is DVD ripping with DVD Shrink. He questions whether underclocking will help extend the device's life or save power, noting his PSU is a Seasonic G series 450W unit. He suggests considering a new build if he wants longevity.
I'm not clear on what you're referring to with the undervolting reference. Should I maintain the voltage at its default level and only change the multiplier? 9.5 was the smallest multiplier I could use even though CPU-Z showed a range of 7-20. This was my first attempt at underclocking. Before, I would overclock to 4.1 GHz just to test the CPU's limits and see if underclocking offered any advantages.
I'm not clear on what you're asking about the undervolting reference. Should I maintain the voltage at its standard level and just tweak the multiplier? 9.5 was the lowest multiplier I could achieve, even though CPU-Z said my range was 7-20. This was my first attempt at underclocking. Before, I would overclock to 4.1 GHz just to test the CPU's limits and see if underclocking offered any advantages.
You mentioned lowering the CPU VID from 1.3125 to 1.25v, which is what undervolting involves. I don't believe underclocking will help you last longer than running at normal speeds. It might slightly reduce power usage, but not enough to justify the cost of a better PSU.
Perhaps I'm misunderstanding your question. What exactly are you hoping to achieve?
The PSU offers high efficiency. I was curious if lowering the CPU frequency would prolong its lifespan. After adjusting the voltage to 1.1 V and setting the multiplier to 8.0, I achieved a frequency of 1.6 GHz, which appears to be the minimum I can reach. Given my electricity consumption in summer—about 2800 KWH per month for cooling a large house on the Texas Gulf Coast—I’m not focused on any specific goal. Appreciate your response.
The PSU is a gold efficiency. I was just thinking if underclocking the CPU would help prolong its lifespan. I've lowered the voltage to 1.1 V and adjusted the multiplier to 8.0, which brings the frequency down to 1.6 Ghz. That appears to be the minimum I can achieve. I'm not really aiming for anything specific, especially given my electricity expenses this summer—2800 KWH—to cool a 5,600 square foot home on the Texas Gulf Coast. Thanks for your response.
I feel your pain, since I live in the Dallas area!
Ha! Dallas area. I managed to complete 6 minute miles in the "low humidity" during my time in Dallas with 100 degree temps back in the 90s. Not much now. Humidity in Houston is intense. I was just thinking if lowering the clock would help, since my apps don’t really need full CPU power. P.S. Go Texans, Go Astros, Go Rockets!
I kept my CPU running at 1600Mhz all day, though I raised the voltage from 1.1V back up to the standard 1.3125V. I’m still unsure if it’s best to maintain the stock voltage or lower it further. Any advice would be greatly appreciated.