0
votes
1answer
44 views

Battery Meter in Windows 8.1 keeps showing “Balanced” a the top

I often use High Performance and Power Saver, but the "Balanced" power plan keeps staying at the top and I can't rearrange. How I can change what plans should be shown so I don't have to go to Power ...
0
votes
0answers
70 views

Closing the lid of my notebook doesn't have any effect

When I close the lid on my Samsung 900x3c-A01 nothing happens, both on Windows and Linux... I've made double-sure all the OS' settings are correct, I even tried to set them up so they would shut down ...
0
votes
0answers
50 views

Setting HDD Turn Off per disk

I can only find a setting that is applied to every HDDs. What if I have multiple disks on my system and want to set different time for each disk? Is there any way?
0
votes
1answer
155 views

How does a computer crash while powered off?

When I put my desktop computer in sleep mode I can simply wake it up by pressing a button on the keyboard. Easy! But whenever there's a power outage the computer needs to do a complete boot up to ...
1
vote
1answer
1k views

Can I power up a Mac with a keyboard shortcut?

I have a Mac Mini 2011 with Mac OS X X 10.7.5 and I want to power it on with a keyboard combination when it is off. When the Mac is in sleep mode, you can just press a key or move the mouse to ...
0
votes
1answer
87 views

Pmset multiple repeating schedule pairs

Can the pmset bash command be used with more than one repeating action pair? For example: Wake or Power on at 13:00, Sleep at 17:00 and Wake at 18:00, Shutdown at 20:00 If not, is there an ...
0
votes
1answer
49 views

Server Power Management

I am making a single ssh server, and unfortunately, my area suffers from frequent weather-related power outages. This is going to be a bit of a problem if I want to have a server running unless: a) I ...
5
votes
1answer
5k views

No Hybrid Sleep in Windows 8?

As you can see below, there is no hybrid sleep option like there is in Windows 8. Is it enabled by default with sleep or hibernation or is it gone entirely? <- Windows 8 vs Windows 7 -> Edit: ...
1
vote
1answer
172 views

Does a previously sleeping Windows PC automatically resume after power loss?

I have Hybrid sleep active which makes it so the computer sleeps and remains powered on in a low-power state while also creating a hibernation backup file. If I leave my machine in this state and the ...
2
votes
1answer
245 views

Power consumption Bluetooth 4 vs 3.5mm

I'm in my work car a lot and my only option currently for getting music/podcasts to my car speakers is a 3.5mm AUX port on the dash. I was wondering what the power consumption difference between ...
2
votes
2answers
77 views

Do chargers consume power when plugged but not used? [closed]

Many people leave their chargers for mobile phones, laptops, devices of any kind plugged into the power socket but without the device they are supposed to charge, connected at the other end. When ...
3
votes
1answer
165 views

Windows Power Options Clarification

So I was looking through the Windows 7 power options via Control Panel today, and I realized I had a couple of unresolved questions as to the nature of various choices. I was wondering if someone ...
1
vote
0answers
527 views

Windows 7 won't wake when opening lid

I've got a Samsung Series 5 laptop running Windows 7 SP1 Home Premium, fully patched. It used to wake up from sleep by opening the lid, when I would put it to sleep by closing the lid. Unfortunately ...
2
votes
1answer
285 views

Is there an instrument or software that can measure the ACTUAL maximum power available to a USB port?

I use a non-self-powered USB modem device for a solutions I provide to multiple customers, and very often I encounter a problem in which the devices stops working due to many reasons, one of which I ...
1
vote
1answer
255 views

Is My PSU compatible with this UPS

I have this PSU and this UPS, however due to the PSU being/having an active PFC (power factor correction) it is incompatible with my UPS (at least according to APC tech support, for reference see my ...
3
votes
3answers
2k views

Computer hangs due to underpowered UPS?

I just bought a new UPS. Now since I started using it I experienced at least 3 random freeze in Windows 7 and it happens during the first 10 minutes of start-up. Note when I say freeze, I mean I ...
4
votes
1answer
122 views

Why doesn't a phone li-ion battery die for 5 years and a pc li-ion battery dies in 1-2 years? [closed]

WHat is the major factor? heat?,size? consumption style like full discharge?
4
votes
2answers
699 views

Will a 300W UPS work fine if my PSU is 500W?

I am getting a UPS (Uninterrupted Power Supply), currently here are my options: http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BE500R-PH ...
2
votes
2answers
146 views

Strange laptop wakeup. Why does it happen?

Here is what happens: I put my laptop to sleep. I turn on my light My laptop wakes up. Why does this happen? BTW, they are both connected to the same power strip. Could my laptop recognize ...
1
vote
1answer
49 views

Would the 2011 27" iMac be more power efficient than my 3 year old HP PC? [closed]

Our power bill keeps climbing higher and higher and we are looking for ways to start saving power (even if it involves quite an initial investment). One of the things we are looking at replacing is ...
1
vote
2answers
682 views

Does Laptop's Battery Condition Power When On AC?

I doubt about this, but still want to hear what others think. UPS condition power but does laptop's battery condition power?
10
votes
4answers
2k views

Does my 1000 watt 80gold+ (90% efficient) PSU pull 1111 watts, 1000 watts, or 900 watts from my wall receptacle at 100% load?

Does my 1000 watt 80gold+ (90% efficient) PSU pull 1111 watts, 1000 watts, or 900 watts from my wall receptacle at 100% load? When I plug my 200 watt video card into one of the PCIe power ...
1
vote
2answers
520 views

Do C13 male/female cables exist? Or do I even need them?

I am hoping to plug a few computers into this HP PDU soon. I have aftermarket power supplies, all of which take c13 female connections apparently. The PDU (from what I gather in the pdf) has 8 * c13 ...
4
votes
1answer
473 views

Do Any PDUs/Power Strips That Plug Into A 14-30 Receptacle Even Exist?

I am hoping to turn my laundry room into a mini data-center. My dryer takes a 4 pronged, 120/240v NEMA 14-30 receptacle. Most all PDUs seem to have NEMA L6-30 plugs (3 prongs, twist lock). ...
1
vote
2answers
222 views

What Sized Cables Are Most Commonly Used To Connect To PSUs?

Most all wall plugs in North America are type A or type B. What type of cable end usually plugs into an aftermarket PSU? I am pretty sure it is the C13 cable, but not many PSUs make this ...
1
vote
1answer
309 views

How to make a spare HDD on-demand yet connected to the PC?

I have a single WD Green HDD which would serve as a backup. However, it's just loud (the oscillation of the HDD, etc) and just runs for nothing. It'd be only for backup and that's it. So far, I ...
4
votes
3answers
139 views

Protecting a Laptop in a Surge-Ridden Area

I am traveling to Nepal with a laptop, where power frequently surges and wanes (brownouts). What do I need to protect the laptop? A surge protector? Voltage regulator?
0
votes
1answer
208 views

How to launch the battery applet in ubuntu manually?

THe The title says it all. :\ i want to know the command to launch it so that i can use it with window managers that don't automatically load it.
3
votes
2answers
72 views

Does temporarily suspending an idle chip reduce its lifetime?

Nowadays many chips, especially CPUs for portable devices can decrease the clock speed or even suspend for short periods of time to save power. This is great. Now when a chip reduces power ...
3
votes
2answers
1k views

Powering-down USB Powered Devices on laptop sleep

I recently purchased a Targus Lap Chill Mat, which is a USB powered device, but doesn't have any interface/storage/etc function. I'd like it to power-down when my (macbook) laptop sleeps (since the ...
3
votes
2answers
5k views

How much electricity does an external USB hard drive use when it's not being used?

My external USB hard drive requires its own power source. I noticed that if I don't use it for a while, and then try to access it later, it takes a while to startup, meaning that it was in some kind ...
3
votes
3answers
167 views

How do I save power when Idling?

Let's say my computer is downloading a huge update, or maybe I want to perform a slow virus-scan that's likely to take hours. The question is, my machine is gonna be up all night, sleep/hibernate is ...