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• Custom built machine has much higher power consumption than expected

  - by foraidt

  I built a machine according to the specs of a computer magazine (c't, Germany). According to the magazine, the power consumption should be at around 10W. I don't want to go into the specifics of the hardware but rather ask for general advice on where to look: I updated the BIOS/UEFI version to the latest version, installed all the recommended drivers and unplugged all hardware that's not necessary to boot into Windows. All that was left is the power supply, mainboard, cpu, cpu cooler and one SSD drive. But still I measured a power consumption of 50W, which is 40W more than it should be. I tried booting Linux Mint from a USB stick, so I don't think it's some Windows-related problem.. Where else could I look? Update 1 I dind't want the question to get closed for being too localized but if more details are necessary, here they are: The system is a desktop PC. The power consumption is measured using a Brennenstuhl PM 231 device, which was tested also by c't and they found it quite accurate. The PSU is an Enermax ETL300AWT, the mainboard Intel DH87RL (Socket 1150) and the CPU Intel G3220 (Haswell). Update 2 There is no online version of the article*. The most details I found can be read on its project page (in German, though...) (*)You can pay for downloadable PDFs, however. English translation of that project page Update 3 Regarding the sceptics: It may sound ridiculous but apparently 10W idle consumption is possible with Intel's Haswell architecture. As a kind of proof, there's an additional Blog article explicitly listing the steps needed to reduce the idle consumption to 10W. Additional hardware: I measured the consumption without the HDD, and as expected the usage dropped by around 10W. I have no chassis fans and the CPU fan is a "Scythe Mugen 4" model. It runs at around 600rpm so I think it won't draw much. When stripping off all my extra components I should be at 10W. But I'm not getting anywhere near that. I would be happy to see "just" 15W in the stripped down version but currently I'm not getting below 50W no matter which component I remove. As I see it this cannot be explained by the PSU being less efficient at lower consumption. I also waited half an hour or so (also checked that no Windows updates were running in the background) and the consumption dind't drop by more than a few watts.

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• Can I connect Creative SBS A520 5.1 speakers to my Dell XPS L502X?

  - by vr3690

  I am planning on buying a new set of speakers and was looking at the Creative SBS A520 5.1 Speakers as an option to connect to my Dell XPS 502X. From what I have seen online and on the quick start guide for the speakers, I need to have 3 line out ports on my laptop to use the 5.1 speakers properly. Right now, I have port for 3.5mm jack, one S/P Diff and another for the mic. Can I connect these speakers directly to my laptop without using any other hardware? If I do need some other hardware, what do I need to get?

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• Fix for OpenSolaris with no gcc vs. Nexenta with no ext3

  - by Jake Wharton

  I'm attempting to migrate my server from linux to a Solaris variant during a hardware upgrade. The machine is based around an Abit AN-M2 board which has an NForce chipset. I have what seems to be a chicken-and-egg problem of sorts: OpenSolaris 2009.06 does not recognize the NIC and I cannot compile the drivers for it as it also lacks gcc. I haven't tested as to whether or not I can mount an ext3 partition yet but its moot if there is no networking. Nexenta 3.0b3 recognizes the NIC but I cannot get the ext3 drives mounted due to FSWfspart refusing to install. I do not know much about Solaris but I wager this is due to the fact that Nexenta is based around Debian as well. While I am reusing the mobo/CPU combo, I did just spent a lot of money on the other hardware around it and would very much like to get it up and running smoothly and quickly. Does anyone have any suggestions that are not: Get a new mobo/CPU Run another OS Use alternate NIC

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• Monitoring remote laptops

  - by kaerast

  We're looking for something to monitor around 30 remote laptops that are constantly out on the road, never returning to base except for when there are serious hardware faults that need repairing. These laptops won't always be connected to the internet, they'll have mobile broadband and may work offline most of the time. They will be running a mixture of Windows XP, Vista and 7 and there is currently no server setup. We're primarily interested in making sure that Windows Updates and antivirus updates are happening, and I guess we should also be monitoring remaining disk space, what software is installed and ideally hardware health. It might also be nice if we could gain remote access to perform work on them. My main reason for wanting to monitor them is that it's going to be a real pain to get them back to base if anything goes wrong, so I want to be proactive in ensuring they last as long as possible. Can you recommend what I should be monitoring to ensure a long life? What tools would you use to monitor and maintain these computers?

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• How can I install an Apple Magic Trackpad on a PC without Boot Camp?

  - by rymo

  I have a Apple Magic Trackpad and I'd like to use it with my PC. I have no other Apple hardware besides the Trackpad. I do not have OSX and thus no Boot Camp CD. The Trackpad uses Bluetooth and will pair with Windows 7 without specific drivers (appears as an HID-Compliant Mouse), but all it will do is point and left click (physical click, no touch tap). With Apple's Windows driver update, I should be able to achieve: Tap to click Dragging Drag lock Secondary click Two-finger scrolling Two-finger secondary tap/click But how can I obtain this driver without Boot Camp installed? Apple's Boot Camp update EXE will not install on my PC (non-Apple hardware).

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• IBM BladeServer Chassis compatibility

  - by Matt

  Hi, I'm looking at buying a 3 year old blade server. My question is, if I buy it and want to insert a current model blade, will it fit? Also, if the chassis goes "POP" and I need to replace it, will the current model chassis fit 3 year old blades? What about Power supply replacements? The chassis I'm looking at is this: IBM FRU / PN: M8677-3XM with DVD reader The blades are all IBM HS20's. We've had a good run with IBM hardware and although there is some nice ex-lease HP hardware available, my understanding is that backwards comparability is not so well maintained. Is this true?

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• What is ECFirmwareMajorRelease in registry?

  - by Remus Rigo

  Can anyone tell me what ECFirmwareMajorRelease stands for? The key can be found in the registry at HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\BIOS

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• Video compression artifacts in Flash

  - by lvanderhart

  This only started happening in the past two days, which seems very odd to me. Everything worked flawlessly up until now, and I use my my computer as my primary TV. Flash video from Hulu and Amazon, for no apparent reason, now have lots of artifacts in them. Some scenes are ok, but some are completely scrambled and unwatchable. My connection is a 15mb fios, and bandwidth tests indicate my connection speed is ok. I've tried the latest production version of Flash, as well as the 10.1RC4. Same problem. Enabling or disabling hardware acceleration in Flash makes no difference (with the scrambling issue, quality is better overall with hardware). Using a different H264 codec doesn't clean up the issue, although the scrambling does look different. I'm kind of stumped. The only thing I can think of now is to reinstall windows, which is obviously a drastic step. Edit: Forgot to say: Windows 7, Athlon 64X2, Geforce GTS 250

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• Determining Performance Limits

  - by JeffV

  I have a number of windows processes that pass messages between them hat a high rate using tcp to local host. Aside from testing on actual hardware how can I assess what my hardware limit will be. These applications are not doing CPU intensive work, mostly decomposing and combining messages, scanning over them for special flag in the data etc.. The message size is typically 3k and the rate is typically ~10k messages per second. ~30MB per second between processing stages. There may be 10 or more stages depending. For this type of application, what should I look to for assessing performance? What do I look for in a server performance wise? I am currently running an XEON L5408 with 32 GB ram. But I am assuming cache is more important than actual ram size as I am barely touching the ram.

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• Windows 7 randomly installs an "Unknown Device"

  - by Amazed

  Rarely (several days to weeks between occurrences,) and seemingly at random, I get a balloon notification from Windows 7 (x64 SP1 Home Premium) that it is installing hardware for me. However, no new hardware has been installed or plugged in! When I click the balloon it doesn't give me any useful information: Looking in the event log, I find this entry: Event ID: 20001 Source: UserPnp Task Category: 7005 Message: Driver Management concluded the process to install driver FileRepository\usb.inf_amd64_neutral_153b489118ee37b8\usb.inf for Device Instance ID USB\VID_0000&PID_0000\6&3AF9A177&0&0060&&02 with the following status: 0x0. It appears to be USB related. My motherboard has both USB 2.0 and 3.0 controllers. My keyboard and mouse are plugged into the 2.0 slots and the data/recharge cable for a tablet (but not the tablet itself) was plugged in to the 3.0 slot. No other USB devices have been attached for several days/reboots. Why is Windows doing this?

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• Beginners advice on Small business network disk(s)

  - by Rob

  We are having 10 PCs used by various user and presently use one network disk (a LaCie NAS) for all our data. Everything is Windows Vista and our collective IT hardware knowledge is minimal. This worked well generally. However, recently the disk freqently loses connection from the network (2-3 times per week) and the only way back seems to be the "turn it off and back on" trick. This obviously cant be any good for the disk. I understand that there are various more sophisticated ways of storing data and was wondering what people would recommend. One of the worries is obviously disk failure (either in part or as a whole) and the lack of continued availability due to network issues. I would guess that a disk which replicates data wouldnt work as a sole solution due to the network connection, but dont know what hardware (and/or software) would/could work in our case. In terms of size, we are looking at very small amounts, ie. less than 500 GB in total.

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• Setup dhcpd without gateway on purpose

  - by MBober

  I have an XP machine with two network interfaces. One is connected to my company's network (and the Internet). The other is a very local network which connects some hardware with my PC. Both the hardware and my XP machine's second network interface obtain configuration from a dhcpd running on Ubuntu in a virtual machine on my XP machine. I entered some dummy gateway in /etc/dhcp3/dhcpd.conf like 192.168.3.1 which does not match any existing device just to get dhcpd started. The problem is that my XP machine now tries to route Internet traffic through 192.168.3.1 in most of the cases which, of course, results in an error. Is there any way to set up dhcpd in a way that the clients know that there is no gateway in this network? By the way: setting the gateway manually in XP is off the table because this needs administrator privileges which I don't have.

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• What virtual machine software for fail-over and snapshots?

  - by consolibyte

  We're looking to virtualize a few machines with the hope that we can: a) Take "snapshots" of a machine to use as backups b) Implement a system where if the software/hardware fails, we can quickly and easily load up an recent snapshot on new hardware and replace the failed machine with a new one. As always, cost is a concern- there's only 3 or 4 servers we're going to do this with, so we don't want to drop $50,000 on this. I'm confused by all of the different virtual machine offerings. Which one is does what I want, and does it easily?

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• how insecure is my short password really?

  - by rika-uehara

  Using systems like TrueCrypt, when I have to define a new password I am often informed that using a short password is insecure and "very easy" to break by brute-force. I always use passwords of 8 characters in length, which are not based on dictionary words, which consists of characters from the set A-Z, a-z, 0-9 I.e. I use password like sDvE98f1 How easy is it to crack such a password by brute-force? I.e. how fast. I know it heavily depends on the hardware but maybe someone could give me an estimate how long it would take to do this on a dual core with 2GHZ or whatever to have a frame of reference for the hardware. To briute-force attack such a password one needs not only to cycle through all combinations but also try to de-crypt with each guessed password which also needs some time. Also, is there some software to brute-force hack truecrypt because I want to try to brute-force crack my own passsword to see how long it takes if it is really that "very easy".

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• Windows 7 Locking up Randomly

  - by Michael Moore

  I've got a Windows 7 machine that is locking up randomly. It can be in the first thirty seconds, or it can be hours later. There is nothing specific I can find that is running when it happens. When it locks, the screen doesn't change, but nothing moves. The waiting icon stops, the mouse stops, keyboard doesn't work, etc. I've even tried the crash on ctrl-scrl registry hack, and it won't even dump the kernel. I've run hardware diagnostics on the RAM and it doesn't find any problems. I would think it is a hardware issue, but on this exact same machine, I can run 64 Bit Ubuntu and it has zero problems. I've even tried reinstalling Windows7 from scratch, and it still happens. Anyone have any ideas? Any good diagnostic tools to recommend? Thanks! Michael

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• Limit disk I/O one program creates?

  - by Posipiet

  Hardware: one virtualization server. Dual Nehalem, 24GB RAM, 2 TB mirrored HD. Software: Debian, KVM, virt-manager on the server with several virtual machines that use Linux too. 2 TB Disk is a big LVM, each VM gets a logical volume and makes its own partitions in that. Problem: One of the programs that runs on one of the VMs creates huge disk load. This never was an issue, because the program never ran on such a powerful hardware. Now the CPUs are fast, and lots of I/O is the result. We cant do much against that at the moment, because the tool is a black box. On the other hand, the speedy computation is welcome. The program creates about 5 GB of temp files which get overwritten during the next iteration. Question: How can we limit the disk I/O for the process?

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• Creating a vm using Hyper-V causes the host of BSOD

  - by Arcass

  Hi, Problem description: When I try to create a virtual machine, the host bsod part way through the process. From the logs in lookes to fail/hang on the "Creating new VirtualDisckDriver with new VHD" step. The BSOD error code is SYSTEM_SERVICE_EXCEPTION : STOP:0x0000003B When the machine has finished restarting, it looks to have created the vhd and XML files for the vm but it isn't accessable. I have two server bothing behaving in exactly the same way, so I don't believe it's a hardware fault. Has anyone had a similar experince? How did you resolve the problem? NOTES Hardware: HP DL380 G6 BIOS : 2010.03.30 (14 Apr 2010) [Latest from HP website] Inter Hyperthreading: Disabled Intel Virtuazation Technology : Enabled No-Execute Memory Protection: Enabled Mem check reports no errors OS: Windows 2008 Sp2 x64bit fully updated regards Arcass

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• Anti Aliasing dead

  - by Gazoza

  I have a problem with anti-aliasing. No matter the software settings, it seems to be gone. I tried driver updating and reinstalling, cleaning of the hardware, different monitor with different cablies, OS reinstalling and changing, none of which helped. I decided to change the graphic card, but that didn't work either. Moreover, I have a distinct impression that the jagged edges are worsening as time goes by. I think this is a hardware-related issue, but I don't know exactly what to do. If anyone here had similar troubles, and/or has an idea how to cope with them, I'd be very grateful. My current card is a nVidia GT610.

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• How long will the serial port be around for?

  - by Andy

  It seems that the serial port has a remarkable ability to stick around. You might call it the hardware equivalent of Windows XP. Despite pretty much physically disappearing from laptops and the like, the need to use a serial port still exists, even if it means using a converter of some sort. It is very much a legacy piece of hardware, and yet so many devices and instruments still use it. I use it myself daily in my work with PLC's, HMI's, barcode readers, etc. In my opinion, I don't think it is going anywhere soon, but how long do you think it has got before joining the museum? Do you think it ever will?

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• need help upgrading small business wifi network

  - by Henry Jackson

  Our small business currently has 3 wireless access points around the building, each with their own SSID. Security is done with WEP (ick) and MAC address filtering (double ick). We are trying to reconfigure the setup, with these goals: wifi roaming between the access points user-based authentication that isn't as annoying as MAC address filtering. 1) The entire building is hardwired with ethernet, so I assume it should be easy to set up the routers to act as one big network, but I can't figure out how. Can someone point me in the right direction? The routers are consumer-grade linksys routers, is it possible to do this without getting new hardware? 2) For security, we will probably upgrade to WPA2, and I'm thinking of using the Enterprise version so that users can log in with a username, instead of having a single key (so if an employee leaves or something, their access can be removed). We have several on-site Windows servers, can one of them be set up as a RADIUS server, or is that best left to a dedicated machine (again, using existing hardware is good).

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• need help upgrading small business wifi network

  - by Henry Jackson

  Our small business currently has 3 wireless access points around the building, each with their own SSID. Security is done with WEP (ick) and MAC address filtering (double ick). We are trying to reconfigure the setup, with these goals: wifi roaming between the access points user-based authentication that isn't as annoying as MAC address filtering. 1) The entire building is hardwired with ethernet, so I assume it should be easy to set up the routers to act as one big network, but I can't figure out how. Can someone point me in the right direction? The routers are consumer-grade linksys routers, is it possible to do this without getting new hardware? 2) For security, we will probably upgrade to WPA2, and I'm thinking of using the Enterprise version so that users can log in with a username, instead of having a single key (so if an employee leaves or something, their access can be removed). We have several on-site Windows servers, can one of them be set up as a RADIUS server, or is that best left to a dedicated machine (again, using existing hardware is good).

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• need help upgrading small business wifi network

  - by Henry Jackson

  Our small business currently has 3 wireless access points around the building, each with their own SSID. Security is done with WEP (ick) and MAC address filtering (double ick). We are trying to reconfigure the setup, with these goals: wifi roaming between the access points user-based authentication that isn't as annoying as MAC address filtering. 1) The entire building is hardwired with ethernet, so I assume it should be easy to set up the routers to act as one big network, but I can't figure out how. Can someone point me in the right direction? The routers are consumer-grade linksys routers, is it possible to do this without getting new hardware? 2) For security, we will probably upgrade to WPA2, and I'm thinking of using the Enterprise version so that users can log in with a username, instead of having a single key (so if an employee leaves or something, their access can be removed). We have several on-site Windows servers, can one of them be set up as a RADIUS server, or is that best left to a dedicated machine (again, using existing hardware is good).

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• smallest footprint for Web Application server?

  - by edgardodelamanta

  There are times when you need to spare hardware resources (either to keep using legacy hardware, to play the embedded card, or just to be efficient because a large footprint is trashing CPU caches, leading to unacceptable levels of idle-states). In this spirit, some efforts have been made to make 'light' ports of Java or Mono (C# for Linux), and they range in the 80-50 MB (instead of the 100-200 MB). Add a Web server (Apache, IIS, etc.) to the scripting engine and you can happily dive into the GB (IIS + .Net) only to load the tool in memory. Anybody with more modest tools in the specs area?

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• Application to use for Winfast DTV1000T Tuner card

  - by lagerdalek

  The WinFast application that they have built for the purpose is pretty typical of hardware vendor built software, and was looking for something nicer.

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• Ubuntu 12.04 crash analysis - strange binary data on all open files at the moment of crash

  - by lanbo

  A couple of hours ago we got a system crash on Ubuntu 12.04. We checked all the log files and there is nothing suspicious to blame to. Last stuff that was logged was some dovecot activity. There are no kernel panic messages. Nothing. It is a new server (new hardware) we are testing before production. And because it is new hard, I'm suspicious the problem may be due to some faulty hardware. We already run memtester with no problem detected. I'll be happy to hear from other hardware testing tools (the machine has SSD). Anyway, the thing I wanted to ask you is a different one. The strange thing is on every open file at the moment of the crash we found the next sequence of symbols was written into them: "@^@^@^@^@^@^@...". For example, on the syslog log file we got: Apr 16 15:53:56 odyssey dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<info>, method=PLAIN, rip=46.29.255.73, lip=5.9.58.177 ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ [these continues for about 1000 chars...] ^@^@^@^@Apr 16 15:55:12 odyssey kernel: imklog 5.8.6, log source = /proc/kmsg started. We got all these symbols in all open files. These include: syslog, mail.log, kern.log, ... But also on some logs that are output by php scripts run in CRONs from user accounts (not root). So, any idea why all open files got these characters written during the crash? This is pretty bad since the crash corrupted many files (we don't even know which other ones may be affected). We are suspicious that all open files (in write mode maybe) at the moment of the crash got all these symbols inserted. Why is that? BTW [in case it helps], the system automatically rebooted after the crash but Apache did not start. There were not traces in /var/apache2/*log why apache did not start. After running a "service apache2 start" it started with no problems. Also, we rebooted the machine manually and Apache also started on reboot. But it did not start after the crash and no errors were reported. Thanks guys!

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