Obvious contenders for low idle power: Mac Mini (<10W idle) - a laptop in desktop clothing (Core2Duo) http://www.silentpcreview.com/forums/viewtopic.php?f=30&t=59331 OLPC XO-1 (laptop) - idle about 7-8 W, but if you shut off things like the screen backlight and the radio you can trim that by a watt...

What are your lowest idle systems with non Atom CPUs? 10W idle, probably going to be difficult with currently available platforms. Something VIA-based might work. Zacate's coming out soon and it's pretty promising if you want an ultra low power build. AMD's Bobcat APU benchmarked: the age of the At...

Hi, Atom motherboards show idle of around 20W in SPCR tests whereas Atom netbooks typically consume around 10W idle (and sometimes with screen on). Any idea on the potential sources of this 10W difference? Is it possible to buy current motherboards+CPU with 10W idle or less, Atom or other x86? What ...

Hi, Do you have by any chance measured the amp taken by the fans? We have voltage but no way to get to the watt consumed by the fans :). Thanks! We did report that in previous reviews but not sure whether we'll bother in future -- the power is minuscule esp. for slow fans. Typically no more than a ...

Hi,

Do you have by any chance measured the amp taken by the fans? We have voltage but no way to get to the watt consumed by the fans .

Thanks!

http://www.silentpcreview.com/forums/viewtopic.php?t=47129 - Seasonic S12 II 430 W (220V AC) - ASUS M2A-VM - 8GB = 4x2GB of transcend RAM PC5300 - Maxtor 500GB SATA STM3500320AS - AMD Phenom 9500, AMD stock cooler - no case (on my test bench) - cost of about 620 euros with 19.6% VAT included (Franc...

Tomb wrote:Are you able to undervolt Phenom from the bios?

I've never undervolted or overvolted/clocked something. The BIOS has some options for this IIRC.

Note: BIOS 1705 for the ASUS M2A-VM released on 20080331 fixes all stability problems I had with the previous BIOS version, I got more than 60 hours of stress testing without problem: guerby@gcc04:~$ uptime 23:46:09 up 2 days, 14:37, 5 users, load average: 17.24, 17.54, 17.62 So in the end a very ni...

There IS indeed a database of AC/DC converters.... at Energy Star . The link on the right column of that page to... For Consumers : Product Lists : AC-DC Adapters PDF will pull up (or let you download) a 66-page list of adapters with measured efficiency. It's difficult to search, however; you might...

Qestion for experts: is a power supply which has high efficiency at 50W hard to design / expensive to make? Or is it just the law of volume / sale advertisement more watt = better?

Take a look at this review at Anandtech which shows an 8800 GTX system consuming 77W more than a HD 3870 at idle. The ATI card consumes roughly 15 to 25W at idle which places the 8800 GTX close to 100W. If I compare my own data for a Q6600/IGP against the Techreport Q6600/8800 GTX system the differ...

Any idea on how they get those numbers? Is it Windows Vista + graphic card which is sucking 116W at idle? I don’t know how they manage to get it that high with a single VGA card; that’s quite an achievement. :lol: Scott from Tech Report confirmed by email his measures, so my guess is that 8800 ...

If I look at:

http://techreport.com/articles.x/14424/15

They report a Phenom 9500 system idle at ... 193W !

46W more than the max wattage I was able to draw from my phenom 9500 setup.

Any idea on how they get those numbers? Is it Windows Vista + graphic card which is sucking 116W at idle?

smilingcrow wrote:Stock voltage – 39/22/13/8.5

compared with Phenom stock - 18/15/16/11

May be Microsoft Windows is moving the process across cores, I'm using Linux which is know not to move process around needlessly.

Thanks for your tests!

Palindroman wrote: Well, it is a 8800GT graphics card which is quite a power hog I believe.

44W displaying idle 2D? Wow...

Palindroman, I wonder how they get 121W idle. The only addition seems to be the GPU, but 121-77=44W (and I have double the RAM).

Any idea?

I tested a Q6600, Gigabyte G33M-S2, Intel IGP, Samsung 400GB SATA, 2x1GB DDR2-900, Silverstone 300W fanless PSU: Idle / Prime95 x4 Stock voltage – 66.5 / 141W RMClock - 65.5 / 122.5W BIOS 1.05V - 58.5 / 107W Thanks for posting! Does the consumption goes up core per core? Ie test with 1xprime95, 2...

No one with idle power use on Intel quad cores in a similar setup?

Hi, Just to share my experience measuring power consumption with my Volcraft Energy Monitor 3000: - Seasonic S12 II 430 W (220V AC) - ASUS M2A-VM - 4x2GB of transcend RAM PC5300 - Maxtor 500GB SATA STM3500320AS - AMD Phenom 9500, AMD stock cooler - no case (on my test bench) - cost of about 620 euro...

Same experience with seagte : sent a smart-dead 500 GB to seagate RMA (from Paris, France), got back one week later a 750 GB seagate with 3.5 years of warranty left.

kater, the ninja looks impressive but is also not cheap

sareiodata, for this project I'm limiting myself to new hardware (don't ask why ).

But indeed I can get in Paris fully working complete old/used PC for about 20 euros (and travel time), and this is indeed an alternative solution.

Thanks again! Last piece of information is what was the heatsink for the AM2 Sempron, I'm looking thorugh Mariner and Palindroman post history... Mariner summary is there: http://www.silentpcreview.com/forums/viewtopic.php?p=315515#315515 bog standard Sempron 3200 ... ASRock ALiveNF4G-DVI ... 1.4GHz...

what about the Intel side? pentium/celeron M are good when undervolted,but motherboards are expensive. mobile core (2) duo expensive and overkill for your application. standard c2d has high idle power consumption. Ok I'll stick with AMD for this project (my desktop has a E6600 :) ). I still haven't...

jaganath, great to hear this is possible!

For AM2 Sempron, will the stock heatsink with fan off be enough if I undervolt? Do you know of a review URL of someone having tried that?

BTW, what about the Intel side?

Hi, Is it possible to passively cool a slow or slowed processor? I don't need cpu power, so massive underclocking is ok (it's for a cheap home made Linux router). Target is to use only the power supply fan. What cheap processors (currently available on the market) are more likely to work in this set...