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Adam Carter wrote: |
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> |
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> > Even my rig - hotter, doesn't reach 300W when I artificially |
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> torture the |
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> > system. Normal 'max' load is in 200W range. An normal desktop? |
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> Under 100. |
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> > |
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> |
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> OK -- just to find out the truth I've attached a kill-a-watt to my |
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> current |
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> workstation which is ~4yrs old w/ slow cpu and ancient video card but |
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> has been upgraded w/ 7 SATA Drives: |
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> |
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> |
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> So the figures below are AC in, not DC out. Pretty sure the figure |
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> everyone uses for comparison is DC out. |
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> |
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> Idle - ~285W |
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> Light Use (emerge --sync) - ~310W |
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> Kernel Compile w/ video app running and minor torture- ~340W |
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> |
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> This is definitely much higher than 100-200W stated above. |
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> |
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> Anyhow, given that the discussion was about a system lasting |
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> ~8yrs, which is |
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> twice the current age of my system, I don't think it's unfeasible |
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> that future |
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> upgrades (especially if video card related or if moving cpu from 2 |
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> core to 8 |
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> core) could get normal power util 20% higher to ~372W eventually. |
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> |
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> If you conservatively state that PSU wattage should be 1.66 * |
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> normal util (so |
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> that PSU is normally running at 60% of peak) then: |
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> |
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> 1.66 * 372 = 617 |
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> |
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> |
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> I think you've double dipped there....see above comment. |
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> |
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> My 2c WRT power supplies - buy a quality brand as they are one of the |
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> least reliable components in a PC. |
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> |
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> |
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|
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To add a little info about me and my puters. I don't update very |
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often. I started out with 512Mb of ram and upgraded to 2Gbs. I started |
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with a 30Gb hard drive and upgraded to a 80Gb and added a 750Gb when I |
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got DSL and could watch videos. Basically, as far as power is |
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concerned, I added a single hard drive. I doubt the memory changed |
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power very much. Swapping a 80Gb drive for the 30Gb probably wasn't |
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much change either. The new drive may have even use less power. The |
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only other change was that I added 2 120mm fans on the side to help with |
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the cooling. |
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|
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As you can probably tell, I build it and it stays the same basically. |
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Maybe a little minor changes but nothing major. I figure I will add one |
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more drive when I can afford it. Maybe a 1.5 to 2Tb or so. They are |
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still dropping in price. |
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|
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Now to reply to some others. |
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|
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Dale |
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|
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:-) :-) |
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