Hardware :: Replace Power Supply Or Mount Internally?
Dec 22, 2009
I have a 500GB WesternDigital Elements external harddrive and recently I plugged it into my computer and noticed the green light on the power adapter didn't light up anymore. I'm assuming that the power adapter failed - is this a fairly safe assumption? I know it COULD be something else, but does this at least make sense to move forward?Coincidentally, I've been researching new externals to order a 1.5TB because the 500GB is full.
I'm contemplating two options:
1.) Replace the power supply for ~$40
2.) Take apart the external and mount it internally
If it is in fact the power supply it might be the best option to just replace the thing and have 2 externals for backing up data on. But if it turns out to not be the power supply I'm out $40.I'm not sure how taking apart the external and install the hard drive in a desktop computer would be. Is the harddrive a standard drive? Does it have all the same power cords a normal computer would? If so, I could just install it into my brother's desktop and retreive the data that way (and he'll have an extra 500GB hdd).
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Oct 22, 2010
I just recently installed Ubuntu and my power supply cooling fan won't power down normally when I would run windows tho it would power down after the system was finished starting up. How can I remedy this?
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Jan 15, 2011
Does anyone had any experience with fanless, low-powered power supply units (PSUs)like PicoPSU? Please share your experience.
I am also interested to hear about experience concerning the fanless cooling solutions and/or power-scaling for low-end CPUs like Intel's Atom, AMD's Neo or Via's Nano.
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Apr 19, 2011
Is it technically possible to use just one power supply for more than one motherboard?The reason for asking is that I have a number of old (a few years) boards that I would like to use to make up a blender render farm yet only have one spare PSU. Having looked at the pin spec URL...pin 16 (power on) should only be connected to one board (or have a manual switch to ground for on)Pin 9 (standby +5v) probably should only connect to the one board or none and the other (or all) boards would need pin 9 to be tied to a +5v pin.All the boards would network boot and have nothing connected to them, no disks, floppies, monitors, etc; as all data would reside on a network server.
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Sep 23, 2010
is this a good combination to use with 8 GB of RAM and 2.6 GHz AMD Hex core? The power supply will be replacing a 450 watt power supply and the video card will be replacing an ATI 5750 1 GB (Which currently doesn't work without 10.9, so far) The problem with these is that it doesn't meet the AMP rating of 38A of the GTX 470.
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May 16, 2010
Is there a way to do that since the computer and OS is aware that the power supply is disconnected.
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Mar 8, 2011
My pc had hardware malfunction; power supply interruption. At this moment it is working stable. My Windows 7 installation is ok but Ubuntu Maverick which I used during crush has malfunction. When I start to boot it looks like this: I had to make a foto so you all can see the problem. all my important files are stored on Ubuntu partition..
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May 3, 2010
I have installed on my computer Solaris10 (64bit version), PCBSD8 (64bit) on 2 primary partitions and 7 Linux distributions (Redhat,Debian,OpenSuse,Fedora,LinuxMint,Slackware,Ubuntu) on the extended partition. I know this might be a stupid question, but here it goes: I have a problem with my actual power supply unit (the fan doesn't work as it should) and I will change it soon. Is there a problem with any of the Linux distributions if I change my power supply unit? I mean, will the Linux operating systems work properly with a new power supply unit or do I have to reinstall all Linux distributions?
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Feb 5, 2011
My router/adsl modem is not connected to a power supply so when power goes and comes the network will do a re-boot. Now the problem is my OpenSUSE network won't come back on! I set the static ip as Autoeth0 to eth0 however when network updates I losse eth0. Why is this happening? Why doesn't the PC simply re-connect? Can I do it via command line?
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Mar 17, 2010
So now that it's working the Server can't be seen from the internet. I see that the router changed all the ip address so I changed the fort port forwarding on the router and still not working. And the external ip address has not changed.
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Oct 10, 2010
come across with this issue for one server we are giving support please,help me to know why this issues occurs and alsothat i want a command to display power supplies for the server.please,let me know if anybody is familiar with these kind of issues.
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Jul 3, 2010
Recently (about 2 weeks ago) the power went out randomly in my household while my computer was running. Upon restarting, GRUB, (which I am still unsure what exactly that is) seems to fail to mount my hard drive. I've been searching for answers since this has occurred and I came to the realization that I am a complete newbie and I dived into the deep end of a pool without learning to swim first.
Initially, I managed to figure out how to wipe my hard drive and install Ubuntu 9.04 and everything was great until this happened. It was a learning process for me and I spent much time collecting info on the basics of Linux. So I know how to use the terminal (for the most part) and I can do a few other things. The good things is: I am excellent at following directions. So that's a start.
Here's what's happened and what I've done so far: Upon turning computer on GRUB tries to load my HD and fails. It gives me a list of strange codes and errors (I can write it all down and post if it will help otherwise it'll take me a decent amount of time) and starts something called "BusyBox". From here I have no idea. So searched a bit online and found that with my installation disk I can boot Ubuntu on some sort of "Live" mode. This allows me to access the terminal but my HD is not mounted (so I think) due to the OS running from the Disc.
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Jan 17, 2011
I am using NetBSD-5.1.1. I wanted to know what happens internally when we create a file in linux. ( In general )?The header file STDIO.H present in "src/include/stdio.h" contains a "FILE" structure with various members like _p, _cookie, etc.2. I wanted to know how does internally memory gets allocated for them.?
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Jan 27, 2011
It's more just straight networking rather than Linux related - possibly a rather large gap in my knowledge.Been asked to set up a Linux firewall / router for a friend, and he wants an external address on his PC and his firewall. He's got a /30... ISP seem to think this is normal. My understanding was different router interfaces should be in different subnets when it comes to addressing. eg:
WAN 1.1.1.1LAN 192.168.1.1/24 (then PC 192.168.1.2)This is how I'd set up an enterprise router, and from memory how I had to regurgitate networking for my Cisco exams. But they would have been large devices within a BGP environment, how does this compare to home use? Can you have interfaces on the same router within in the same subnet? I'm looking for the real world answer - not my CCNA answer or the config addressing scheme I just blindly followed...Is this right or can different interfaces be in the same subnet?If they can be in different subnets How would you do that with an eternal 1.1.1.1/30? egWAN 1.1.1.1LAN (what IP?) then PC 1.1.1.2Would you actually just set the router up as a /29 and then use the additional IP addresses for the LAN NIC on the router? (yes I'm aware you couldn't route to where it had actually been allocated)
Then with that how do I route the 1.1.1.1/30? Which interface do I point it at? Even with a /29 I'd still have a routing issue right?Or are the ISP expecting you to do something with NAT / port forwarding. (and yes I could do this to get it working - but I want to understand it better) I'm asking the question here, because rather than just wanting a magic file to get things working, I'd actually rather understand the principles rather than just press a button and have it work.
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Jan 16, 2011
I am using NetBSD-5.1. 1. I wanted to know what happens internally when we create a file in linux. ?The header file STDIO.H present in "src/include/stdio.h" contains a "FILE" structure with various members like _p, _cookie, etc. 2. wanted to know how does internally memory gets allocated for them.
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Sep 24, 2010
Due to a power outage, my EXT4 file systems (which contain /usr and /opt) no longer mount at boot-up. They are, however, seen by disk utility in Knoppix, so I assume the data is still there and that it's just matter of making a connection to it.
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Apr 8, 2010
I am not sure if this is a problem with my router or a problem with the fedora 12 server i am using.
- internal here means within my home network, external means from outside it.
I can access my server and webpage:
internally using http://192.168.0.192
externally using http://MYDNS___EXAMPLE.com
but I cannot access the server internally using http://MYDNS___EXAMPLE.com
This is a pain in the butt because I have all of my client software setup with an internal and external access point (ssh, proFTPd, http, MS Access database connected to MySql, etc.)
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Feb 9, 2011
I am creating podcasts that I like to download to my android phone. I host the podcasts on my home webserver and use dyndns for the website when outside the network. However, when I type in my dyndns website from inside my network, it will not work.
I realize i can use the ip address to get to the site, but since I use beyondpod for my podcasts, it's all saved in settings. So what i'd like to be able to do is download the podcasts to my phone from either inside or outside the network.
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Oct 14, 2009
So I keep reading that bonding ethernet devices is supposed to be easy. I have followed several tutorials and tried a few things on my own, and I can't seem to get it right. I currently have a setup that allows me to ping internally on my network, but when I try to ping externally I get the error:
connect: Network is unreachable
Before I bonded the interface my connection worked fine. Here are my config files. I am running centos 5.3 on a virtual machine.
/etc/sysconfig/network-scripts/ifcfg-bond0
Code:
DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
NETWORK=192.168.1.0
NETMASK=255.255.255.0
IPADDR=192.168.1.211
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-eth1
Code:
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
HWADDR=00:0c:29:88:59:47
MASTER=bond0
SLAVE=yes
USERCTL=no
/etc/sysconfig/network-scripts/ifcfg-eth0
Code:
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
MASTER=bond0
SLAVE=yes
BOOTPROTO=none
HWADDR=00:0c:29:88:59:3d
ONBOOT=yes
/etc/modprobe.conf
Code:
alias eth0 pcnet32
alias scsi_hostadapter mptbase
alias scsi_hostadapter1 mptspi
alias scsi_hostadapter2 ata_piix
alias eth1 pcnet32
alias bond0 bonding
options bond0 mode=0 miimon=100
output of cat /proc/
Code:
Bonding Mode: load balancing (round-robin)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:0c:29:88:59:3d
Slave Interface: eth1
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:0c:29:88:59:47
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Mar 22, 2011
I have configured a sendmail MTA for incoming mails in a network and by using IPtables i have redirected the traffic internally to other port where one more SMTP by a application is running.Iptables rule:
iptables -A INPUT -i eth0 -p tcp --dport 25 -j ACCEPT
iptables -A PREROUTING -t nat -i eth0 -p tcp --dport 25 -j REDIRECT --to-port 25000
My sendmail config is as below.
Sendmail.mc
define(`SMART_HOST', `relay:host.subdomain.mydomain.com')dnl
dnl # define(`RELAY_MAILER',`esmtp')dnl
[code]...
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Mar 29, 2011
I know that you can access and run any script of the web by wget:
Code:
wget mydomain.com/page.php
But this is literally accessing it externally through the web, i think that it is safer and faster to access the script internally. I am using lighttpd to host my php pages, and is there a way to do that? I have had some hosting experiences, the cronjobs on the hosts let u input:
Code:
* * * * * php /public_html/path/page.php
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Sep 16, 2010
know whether it is possible to disable +5V supply on USB and enable it again?
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Jun 11, 2010
I will be staying at a hotel for a couple weeks that has a wired internet connection to each room. I have a Linksys WRT54G v6 wireless router and would take with me and set it up so I would have wireless in my room.
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Dec 4, 2009
The upstream provider is supplying samba3x (currently samba 3.3.8) packages in their supplementary repository. I know that most of what is in the supplementary repository is burdened with restrictive or non-free licenses, however, Samba is not.
The samba3x packages are critical for Windows Server 2008 trust relationships as well as Windows 7 client support for a CentOS server acting as a Windows domain controller. I know that I can either roll my own packages or compile from source, but an officially supported version would be a much better option on a production server.Is there any way CentOS can "officially" supply these packages and their associated dependencies?
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Apr 23, 2011
Can the Replace function replace more than one word with the same character(s)?
Also, do you know how to access the plugins provided by the gedit-plugins package?
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Mar 5, 2010
I am trying to write an irc bot to run interactive fiction games in a channel. I am connecting to the channel using nc. I'm having a hell of a time trying to supply input stdin for nc after the connection is established. Here's what's going on. I've got lines of plain text in a file with the irc commands required to identify the bot's ID and join the channel. I can connect easily using any of the following commands
cat inputfile | nc irc.servername.org 6667 -i 1
nc irc.servername.org 6667 -i 1 < inputfile
Named_Pipe | nc irc.servername.org 6667 -i 1
cat inputfile > Named_Pipe
With the first two commands nc connects, reads the file with some time between each line allowing the irc server to respond, bringing me into the channel. It then begins to receive stdin from the command line allowing me to do things like "privmsg #channelname :Hello World!!!" sending messages to the room. This is not the desired behavior. I require nc to take additional stdin from the inputfile if I cat additional text to the end of it.
The last set of commands using the named pipe seem like it does the same, but it doesn't actually send anything to the room, which indicates to me that perhaps nc is continuing to take stdin from the named pipe (this is the desired behavior) rather than dropping to the console for stdin. If I try to cat more plain text data to the end of the named pipe, however, either with something like "echo 'privmsg #channelname :Hello World!!!' > Named_Pipe" (or >> instead of >) or with a filename in place of the "echo" command the whole command simply seems to hang until I press ctrl-C.
I don't understand what I'm doing wrong. With anonymous and named pipes, and with redirection, the problem seems to be the same. nc seems to take it's stdin from the file until it hits the end of file, at which point I can no longer introduce new lines of plain text as stdin for the running nc process.
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Mar 21, 2011
I followed this tutorial to encrypt my entire installation: SDB:Encrypted root file system - openSUSE
It worked splendidly and whoever wrote it should get a lifetime supply of beer. After I got the install encrypted I made a RAID 1 array of 2 1GB disks and encrypted that as well. They are used for a data repository.
[Code]...
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Mar 31, 2011
I have the following commande /sbin/fuser -f -u /u/DT01/F010107 1>/tmp/null 2>/tmp/seausr.T0069 when executing as root 'su' this give me all user using the file. but when tried with 'sudo' i am asked with 'user password'. Is ther anyway to simply get the result without having to supply a password and to see all user not only me. (i have the file open also).
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Jun 4, 2010
I use Squeeze with Xfce. My problem is that recently (after the xfce updates) the xfce power manager doesnt react to the power button - it is set to suspend. I dont have gnome-power manager or anything like it running.
If i reboot the computer, the power button will work but if i suspend and resume, it doesnt work again.
The computer is built on an Asus M3N78-VM mobo (2GB RAM/Athlon3200+ single core).
acpi_listen detects the button press.
Any thoughts?
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Jan 8, 2010
one tell me the internal working of kill command. that is how it kills a process internally or from where it picks file to continue its process.
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