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  • Upgrade AirPort on Macs to support Snow Leopard's Wake on Wireless/WLAN?

    - by wojo
    Snow Leopard now supports Wake on WLAN, but not all hardware supports this. For example, my Octo Mac Pro from early 2008 has an AirPort card, but it does not support this. Nor does my 2007 2.33GHz MacBook Pro. For reference to what is needed, look at http://www.macrumors.com/2009/08/28/a-closer-look-at-snow-leopards-wake-on-demand-feature/ which includes a screenshot of what the System Profiler should show. It's pretty hard to find Apple parts, but is it possible to put newer cards into these machines to have them support Wake on Wireless?

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  • How to fix massive lag on ZyXEL HomePlug AV powerline adapters?

    - by Tim Abell
    I have 3 ZyXEL Homeplug AV powerline adapters as per the one in the review below. I have two plugged in currently, one into my Be / Thompson wireless router, and one into my desktop pc (box1). every now and then the link indicator on the adapters (the mains link, not the ethernet link) goes nutty, and performance falls off a cliff (see below). http://www.gadgetspeak.com/gadget/article.rhtm/753/479266/ZyXEL_PowerLine_HomePlug_AV_PLA401.html 64 bytes from box1 (192.168.1.101): icmp_seq=1064 ttl=64 time=996 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1065 ttl=64 time=549 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1066 ttl=64 time=6.15 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1067 ttl=64 time=1400 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1068 ttl=64 time=812 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1069 ttl=64 time=11.1 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1070 ttl=64 time=1185 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1071 ttl=64 time=501 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1072 ttl=64 time=1975 ms 64 bytes from box1 (192.168.1.101): icmp_seq=1073 ttl=64 time=970 ms ^C --- box1 ping statistics --- 1074 packets transmitted, 394 received, +487 errors, 63% packet loss, time 1082497ms rtt min/avg/max/mdev = 5.945/598.452/3526.454/639.768 ms, pipe 4 Any idea how to diagnose/fix? I'm on linux so installing the windoze software that came with them is not something I'm terribly keen to do.

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  • Melting plastic around DC-in jack in laptop

    - by Ove
    I recently noticed that the plastic around the DC-in jack of my laptop was warped (melted) a little bit. Since I noticed, I have done some experiments, and saw that the metal tip of the charger heats up very much when I am gaming, or performing CPU-intensive work (it's so hot that i can't hold it between my fingers). When I am using Windows normally (web browsing, music, video), the tip is not hot. I tried using another charger from a compatible laptop, but its metal tip overheated as well, so the problem is not caused by the charger. I have been using this laptop for gaming for 1.5 years and I never had this problem. When gaming I always use a laptop cooler. Dust is not the problem (i cleaned out the dust), and the CPU and GPU temperatures are not higher than when I got the laptop. The only thing that is excessively hot is the charger tip. Because I bought my laptop from the USA, sending it to warranty and back would cost more than the laptop's value, so I need to fix it myself. I have googled around, and I saw that the problem might be the DC-in jack that is located on the motherboard of the laptop. I plan to take the laptop apart and see if it has become loose, and soldering it in place if it has. My questions for you are: Did anyone deal with this problem in the past? Did anyone manage to fix it? Is the DC-in jack the culprit in this case? Or is it possible for the problem to be caused by another part on the motherboard? Is there any way I can check the DC-in jack with a multimeter? What should I measure (resistance, etc)? EDIT: My laptop is a Sager NP5135 (aka Clevo B5130M). I also posted on NBR, including some pictures: link

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  • Where can I get a metal mug to fit my USB mug warmer?

    - by tjrobinson
    I got one of these for Christmas (this exact model): But it doesn't work very well with normal ceramic mugs as they're too thick and insulated. What I really want is a mug like this that fits well and transmits the heat from the warmer to my drink (so no air gaps or thick bases): Where can I get a mug like the one pictured above from? I like in the UK but don't mind ordering from overseas. Update: I've tried camping mugs but they all seem to be too wide. I will measure the base later and post exact dimensions. I am really after the exact mug shown in the picture, it must exist somewhere?

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  • Touchpad stops working when plugging in new laptop PSU

    - by drahcir
    I recently bought a psu for my Compaq 6710b and when I plug it in to the laptop the touchpad seems to go stop working, especially when the laptop is charging. I checkout this site and it suggests that the problem might be static electricity building up due to poor earthing.I tried replacing the cable that leads from the psu to the wall socket with the one I had of my old psu but to no avail. I even tried to see if I put the psu farther away might reduce to interference but also resulted in failure. Any ideas on how I could solve this problem?

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  • Computer turns itself on after any off mode

    - by Patrick
    Whenever I shut down my computer, or put it in sleep/hybernate, it turns on after two seconds. It doesn't post, it just powers on and then idles. To actually turn it off, I switch off the psu. The problem is now, whenever I switch the psu on and try to boot, it doesn't always turn on. It takes a good amount of flicking the psu switch on and off before the motherboard lights up. So far I've determined the things its not: its not caused by the mouse or network waking up the computer. I've been able to go into hybernate for the past year. And all "wake on X" settings in the bios are diabled. its not a scheduled task waking up the computer at a given hour, it occurs every single time its not due to an upgrade or new installation, since I haven't done either in a very long time I'm sure its a hardware issue. So I'd like to know, is my psu dead, or the motherboard? The psu is an Antec Earthwatts 600w, the motherboard is an Asus P5Q-E, both one year old.

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  • Numlock on when computer is off

    - by George Duckett
    I have a desktop PC which was recently moved. Since moving I've noticed that even while the PC is turned off (but wall socket turned on) the NumLock LED on the keyboard is on. It may have been doing this before the move, but I've only noticed it now. Maybe it matters that the keyboard is connected via a shared mouse/keyboard PS/2 port and I'm running Windows 7. I've not checked whether the LEDs are just keeping whatever state they were in when I turned the PC off but will do this if that information could be relevant. Why does the led stay on when the PC is turned off and how can I prevent this?

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  • Advantages of a 130W vs 90W ac adapter?

    - by David
    I purchased a Lenovo T420S laptop with a 90W/20V AC adapter P/N 42t4426 through my IT department. Subsequently, I ordered a replacement adapter and received a 135W/20V AC adapter P/N 45N0054. The 135W version is about twice as big and heavy as the 90W version. Is there an advantage to the 135W version like faster battery recharging? Are there any negative effects (other than weight), like reduced battery life?

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  • What PSU is usually used in mini-ITX cases/chassis?

    - by Subaru Tashiro
    The mini-ITX computer will be a general use computer. Not a dedicated HTPC or Home server. In general use mini-ITX cases, what PSU form factor is usually used? I understand that some case manufacturers provide custom built PSU to fit their case but I prefer to get the ones that use a PSU that follows standard form factors in case a replacement is needed. For example, what PSU fits into general purpose cases by Lian Li? Am I to assume that smaller PSU form factors also affect the possible maximum output?

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  • A list of 'best practices' for extending the life between charges of a notebook battery.

    - by Tim Visher
    Hello Everyone, I'd like to compile a list of best practices for getting the most out of a single charge of a typical notebook battery (be it Li-Ion or Li-Poly). Sources would be great as well. I've heard, for instance, that the best things to do to improve battery performance (not the total lifetime of the battery, just single charge performance) are, in descending order of effectiveness: Turn your display all the way down. Turn off WiFi Turn off Bluetooth Spin down disks when they're not in use. etc… I'd like to get sources together for these and other tips for extending life-between-charge for any battery on any notebook (as these really are all about Demand Management rather than Life lime extension. Thanks!

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  • Can't turn computer on after re-attaching hard drive

    - by julie
    I have an Eee PC 1008HA. A few days before I got a virus that was preventing the Windows to boot but I could turn the computer on. I opened (disassembled) the Eee PC, then disconnected the hard disk. I connected the hard disk to another computer and copied my files. When I connected again the hard disk to my Eee PC and closed (assembled) it , I cannot turn the Eee PC on. Even when I connect the wire for charging, neither the charging light nor any other lights light up.

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  • Laptop abruptly powers off after few seconds of booting

    - by Alan Mendelevich
    I have a 3 year old HP Pavilion dv2208 laptop. Recently it started abruptly powering off in like ~20-30 seconds into Windows boot sequence after almost every reboot/shutdown. Even if I leave it in Repair/Start Windows Normally stage it powers off anyway. The only way I managed to workaround this is to enter BIOS setup screen and leave it on for no less than 10 minutes. I don't know what happens there but this helps every time. Any ideas of possible ways to fix this that don't include replacing motherboard are highly appreciated. P.S.: I've tried resetting BIOS to defaults, updating to the latest BIOS version, etc. Happens with both Vista and Windows 7.

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  • Why won't my computer go to sleep automatically?

    - by Django Reinhardt
    Windows 8 is set to sleep after 30 mins, and it used to work, but recently it's started refusing to sleep. (I can still manually ask it to go to sleep without any issue.) I was having issues a while ago, but it was with my network adapter. That's since been disabled, so it's definitely not that: I've checked to see what devices are able to wake up my machine, but it only appears to be my mouse: Which is odd, because I haven't recently changed my mouse, and more confusing still: The monitor does go to sleep just fine. If it was actually the mouse keeping my system awake, I'm pretty sure the monitor wouldn't go to sleep. I've checked my Wake Timers, and nothing: I've also checked my existing requests... UPDATE: I found something. What to do with it, I don't know... Note: Even when /requests says that there's "NONE" under every category, my machine still won't sleep(!). In short: How can I tell what's preventing my computer from Sleeping? UPDATE: Ok, so I now have a few more pieces of the puzzle. I came back to my computer and it was ASLEEP! Lawks! It seems that the only times it doesn't sleep is if VLC Player is open, even if a video isn't actually playing. UPDATE UPDATE: Ok, so it won't sleep sometimes when VLC Player ISN'T running, either. Bah!

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  • How can I start an off PC remotely?

    - by serena
    I am using Team Viewer to control my PCs remotely. It lets me restart my PC, and this is a good feature. Is it possible to remotely start a PC which is already turned off? Maybe it's impossible but I like to ask Superusers. All I can think of is something like sending a signal to PC's BIOS. Assume that all components of PC is connected to electrical socket and the router is on.

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  • PSU died, is hard drive fried? Are other components damaged?

    - by srand
    After discovering and replacing my dead PSU, I was able to boot back into Windows. Everything seems to be working fine, however, one hard drive is not. Windows 7 says that this SATA hard drive needs to be formatted before it can work. Can the data be recovered? Also, is there a way to check the integrity of the other components of my computer or assume they will work fine?

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