So, my new HD503HI and HD322HJ have just arrived, the 500gig replaced my old 250gig tk250, and the 320gig wil replace my other Hitachi 80gig (same model as above) when Seven will be available.

My full specs

OS: XP SP2

Watts mesaured behind an APC UPS and a LC POWER 6550GP2 550W (let's say... 80% efficiency? less?)

Idle (lcd shut down): 86/87w (cpu 263x6, gpu 101/248@0.9v)

Idle and lcd: 112w (so my lcd requires about 25w, it will be replaced by an eco Dell g2210 in 20 days)

Idle, lcd and gpu@3d freqs (668/828) set from Atitool: 132w

CPU Intel burn test stress and lcd: 144w (cpu 263x12.5)

GPU stress (Scan for artifact) and lcd: 160w (please subtract 14w of cpu power to this) (gpu 668/828)

GPU+CPU stress and lcd: 175w

Stand by/Sleep: 13w

Calculated max cpu power: 32w and 4/5w in idle (Everest shows max 28/29w under IBT)
Calculated max gpu power: 34w+something in idle

What about these values?
Any possible improvements? Any errors?

Thanks

I have saved some 15w by installing two 320 and 500gig Samsung F3/F2, and a 22'' Dell G2210 instead of 2004 80 and 250 Hitachi HDD and 2003 Philips 190s5fs.

Idle (lcd shut down): 83/85w (cpu 263x6, gpu 101/248@0.9v)
Idle and lcd: 97/98w
LCD: 14w

It looks a very reasonable power consumption result considering the fact that you've installed ATi 3850 and two HDDs. My suggestion for your system is to get a better, higher efficiency PSU in case you really want to further reduce your power consumption figures. Were I you, I would keep on using current components anyway.

I completely agree with you, that will be a 2010 plan (maybe).

I forgot to tell that PSU calculator utility is really good, because it gave me a correct value for PSU (about twice as REAL consumption).
As I wrote, my MAX power consumption is (with those new Samsung HDD's):
GPU+CPU stress: 149w (edit: Intel burn test+Scan for artifact AtiTrayTools)

PSU calculator told me 279w (close to 300w, twice as 149w)

First - what do you mean by stress? A game, say, Crysis? Or Linx + Furmark? Or OCCT Power Supply Test - the most demanding of these three. While a modern 3D game will give you realistic, daily load, it won't ever fully load both CPU & GPU.

Second thing is - I'd consider a PSU calculator that gives me 100% safety margin not an accurate one Personally, I'd be fine with just 20% safety margin over what my PC needs when unrealistically stressed with OCCT (plus perhaps HDD defrag). Also, let's not forget that the 149W you're reporting is the AC draw, meaning that the actual load on the PSU is approx. 20% less, which in turn makes the safety margin even higher.

Intel burn test+scan for artifact ATT (probably the heavier test for ATI)

Anyway I don't get your point. The 100% margin is meant to have a hypotetical maximum 50% load on your PSU, where it should teorethycally reach the best point in the efficiency curve (speaking in general, we're not talking of 80+ or other features). It could also assure a cooler PSU, I suppose.
Furthermore it gives you more headroom in case you want to upgrade with more power-hungry stuff

Regarding AC, I think that psu calculator is reporting values in the AC domain, too.

Fair enough. But given that you're not going to stress the PSU so heavily daily, you're going to run well below the 50% mark, losing some more efficiency. But anyway, we're now talking about such small figures that it'd be pointless to change the PSU to save some watts, as the investment would not repay in a dozen years.
And about upgrading - the 3850 card is, AFAIR, not a low-power champion. So if you change it, your load power demand will most likely remain unchanged, and your idle numbers will surely go down.

I agree. I already bought a bigger PSU (550w) 4 years ago because my old 90nm x2 3800+ required almost twice as this one, and I don't want to buy a new psu until the next autumn, and I'll do it only because a 5 years old not-high-level PSU could start acting strange.
I'll probably buy a 5670 too, but I don't think that a 3850 downvolted at 0,97v and at 100/250mhz could require many watts (I'd say 20 against 14/15 for hd5xxx serie. If you see the first post, I calculated that the gpu sits below 60w in 3d, it is downvolted in 3d mode too, I may consider plugging out the aux 6pin molex).

Ok, never mind, I've just swapped my psu

I've changed from LC POWER 6550GP2 550w to BE QUIET E7-400

ORIGINAL
Idle (lcd shut down): 83/85w (cpu 263x6, gpu 101/248@0.9v)
Idle and lcd: 97/98w pfc0.86
LCD: 14w
CPU Intel burn test stress and lcd: 132w (cpu 263x12.5)
GPU stress (Scan for artifact ATITOOL) and lcd: 148w (gpu 668/828)
GPU+CPU stress and lcd: 163w
GPU+CPU stress: 149w
Suspension (S3): 12/13w

BEQUIET 400W
Idle (lcd shut down): 76.5w pfc0.92 (cpu 263x6, gpu 101/248@0.9v) (75w with C2-C3-C4 state)
Idle and lcd: 90w pfc0.89 (88w with C2-C3-C4 state)
LCD: 14w
CPU Intel burn test stress and lcd: 132w pfc0.94 (cpu 263x12.5)
GPU stress (Scan for artifact ATITOOL) and lcd: 141w pfc0.93 (gpu 668/828)
GPU+CPU stress and lcd: 163w pfc0.93
GPU+CPU stress: 149w
Suspension (S3): 12/13w

Typical consumption scenarios - LCD on:
Pro evolution soccer 2010 1680x1050: 135w
DIRT 2 1680x1050: 150w
x264 conversion: 118w
720p playing NO DXVA: 100w
1080i playing NO DXVA: 108w

Anyway I don't know why the consumption didn't improve in some stress cases.