There is something if enabled the new C4E state supported by the new E5200 saves 5W compared to the 1.2Ghz 1.1VID, and 7W compared to the 3.6Ghz 1.25VID, it lowers to 0.9VID and probably disables the L2 in idle with E8400. this causes degrading performance and loss of responsiveness in some software...

I imagine it could cost 500-800$, and that's a lot.

http://xbitlabs.com/articles/mainboards ... html#sect0

Probably all of them, with bios update.

Of all the surviving the i7 860 experience boards, there is only a slight difference in idle, load and overclock.

http://www.fcenter.ru/online.shtml?arti ... s/27657#07

With 5850 instead of 4890, your PC's power usage will be 40 watts lower.

Like the DVID found on P55 GB boards http://img44.imageshack.us/img44/1701/p55vcoredynk.jpg my EP45-DS3 board doesn't support offset, but overclocking on default voltage keeps C1/C2/C4 states operating and voltage idles at 0.85(0.9VID) same as nehalem. 3800 @ 1.15 Load, Idle 2400 @ 0.85V It is only ...

With westmere the nortbridge moved to cpu but shrinked to 45nm, can't undervolt it, put aside that legacy floppy usb2 and pci legacy slots comm ports are still there to haunt you platform, PCH is only 5 watts, undervolted Cpu is 5W, oncpu-chipset is 10 watts, but psu efficiency will eat any advantag...

Depends on motherboard capabilities and bios, and the process of the memory chips

ddr2-800 1:1 2x2Gb idle/linpack
1.8v 88.3w/139.4w
1.6v 86.7w/137.3w

and uf we add the idle cpu and idle Mch, and then the not so idle memory and mch, not just 36W, but more, and then less

asus releases some p55 software the ASUS AI Suite and the ASUS PC Probe.

http://support.asus.com.tw/download/dow ... uage=en-us

it is eye candy and useless.

dynamic phase switching doesn't make a difference. for example on a P45 gigabyte board we have these possibilities(2 or 6 phases on 15 watts) (3, 4 or 6 on 30 watts) (4, 5 or 6 on 45 watts) (5 or 6 on 60 watts) that is when the active phases number changes at 15, 30, 45 and 60 watts. the system powe...

Intel C2D E8400 E0 - PENRYN (775) stock - 1.250V

Minimum: 1.9 GHz @ 0.800V
OC'ed: 3.8 GHz @ 1.200V

Cpu-z
http://img20.imageshack.us/img20/8471/1937800.png

8W IBT

http://xbitlabs.com/articles/cpu/displa ... html#sect0

6550 ~ 40W => 6600 ~ 80W

max VID 1.325
min VID 1.1

1.1^2 / 1.325^2 ~ 30% less heat ~ 55 watts

.....e5200 indicates how much amperes is drawing, so a program like Everest can tell you an accurate instant power consumption value ......? the motherboard has vrm regulator that indicates amperes with the vrm efficiency included, so the actual cpu power usage is some 10-20-30% less and nobody kno...

It probalby has something to do with low vrm efficiency partially, there are 3 vrm phases, each one of them having 2 mosfets, compared to the traditional 3 mosfet design, and also g31 runs hotter than the 965. some asus boards are reported to be more power hungry than competitive products from other...

no mofset cooling needed, my e8400 is clocked at 3.6Ghz, and never above 25 watts in games or any sftoware that i tried, it is safely to assume - q9650 is double that, around 50watts maximum, but it is likely to be less, because of poor or lack of multicore game optimisations so i have also stressed...

http://80plus.org/manu/psu/psu_detail.aspx?id=27&type=2

Another 235W is out, in fact 10 Gold Psu's from delta.

By reducing wires hopefully they mean entirely removing, those yellow, red, black wires, and all. http://www.silentpcreview.com/article898-page3.html Enermax has the EDM450-650, but they still have some wires like the 24pin 8pin and 6pin http://80plus.com/manu/psu/psu_reports/ENERMAX_EDM550AWT_ECOS%...

http://www.fcenter.ru/online.shtml?arti ... r/24252#03

scroll up, +175W / +900rpm, +225W / +925rpm it is ~1/2 450 so it is expected to ramp up. it happends exactly as they show.

with the 8800gt, impossible to pull more than 170W Dc, perhaps this nforce mbd is not energy efficient

maybe this is somehow overheating or something preventing the airflow on the back of the PCB, there http://www.hardwaresecrets.com/article/540/5 the thermal sensor is the culprit. my vx450 ramps up instantly at above 312 watts AC / 265 Dc, and lowers the rpm back at 200W Ac or something. and it is n...

with e8400/ p45 there is no benefit to undervolting at all http://img144.imageshack.us/img144/4681/clipboard01y.png as this intel cpu takes as much as it needs, 2.98 watts idle as everest doesnt show data below 2.98 and it is unlikely that any game/software will be more than half of whatever intelbu...

using "Energy check 3000" at the wall the numbers are: the vrm efficiency is so weird, because it is cpu efficiency, given that 3200Mhz overclocked raises the fsb bandwidth consumption related chipset and memory too. and that results visibly even better efficiency, how about that. http://img4.images...

there is a lot of vrm, cpu efficiency loss, 1.55v and 0.85 : 1600mhz. its a mistery to me, its strange. guestimated power draw of mobo and gfx and hdd etc is 55W 8800GT P31-DS3L 40GB 2*2GB CPu E2140 1600/3200 http://img522.imageshack.us/img522/522/90734827et6.th.gif according your formula Tobias htt...

hello you have total power 135, at 85% psu, it is 114 watt idling at 71 watt with 80% efficiency ~ 55 watt 40 watt out of 50 is motherboard + hdd + ddr2, you should be comparing 74 and 15 watts, the cpu alone, 74 watt 2200 Mhz / 1.3V 15 watt 1200 Mhz / 0.8V 2200/1200 . 1.69/0.64 1.83 . 2.64 ~ 5 15*5...

if you can turn those 0's into 1's there is your only way, but i dont know how exactly to do that, probably if VID 5 is isolated from the socket, not sure what to do

I give you the E8400 E0 3600Mhz with normal 1.25 VID Intelburn

42Watts



and the E8400 E0 3200 Mhz minimum 1.1 VID Orthos

23Watts

Not weird at all, undervolting the vga, nice. I have seen everest show some modern GPU's power too.



idle is nonexistent, everything below 2.66 watts is not shown.

36w and 80%eff= 43w This one seems too low for me, I have read that this kind of rig should lead to 90 100w in idle... Am I missing....what? efficiency should be as low as 60-70% idle http://www.silentpcreview.com/article751-page4.html comparing again with Ibt running. both have the same consumptio...

EP45-DS3 Vcore 0.85 Mch Voltage 0.95 / 370 fsb, 1.05 / 440 fsb, 1.15 / 510 fsb, 0.85 Dram 1.45, 1.65 / 820 mhz E8400 2333 0.88V @ 11 Watts Intelburn Mch 1.05 -> 0.95 drops 2 Watts (1.6W - 80% psu eff) Ibt E8400 3690 1.18V @ 41 Watts Ibt Mch 1.15 -> 1.05V drop 3 Watts (2.4 watts) Ibt, estimated 12W /...

Everest uses data reported by the ISEN pin of the VRM. So if it reports 32A, and the Voltage is 1.2 then we have 38Watts. what cpuz shows is not to be trusted. ep45-ds3 board, 450Vx psu I had 28 watts on E5200 @ 2800Mhz 1.18V while running intelburntest that being 120 watts total system consumption,...

9400s is the name. what is the VID? that's very low VID, perhaps good overclocker?