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• Why my new GTX 660m's clock drops drastically after running few seconds

  - by trVoldemort

  I bought a Lenovo Y580 laptop few days ago, this model is equipped with GTX 660m graphics card. However, the game performance is unbelievably poor since it out from the box. I realized there is something wrong with this graphics card. I downloaded GPU-z, and did a simple test. And I was shocked by the fact that my GTX 660m graphics card is running at 135.0mhz core clock. (It should be 835mhz at least!) Even the integrated graphics card "Intel HD graphics 4000" can run at 650mhz. Further examining showed that in the first few seconds GTX 660m was actually running at 835mhz, however the core temperature quickly reached 90+°C and the clock (maybe) automatically drop to 135.0mhz. This is very strange. Anyone has any idea what's going on here?

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• Testing Firewire 800 port on MacBook Pro

  - by dtlussier

  I am having trouble getting my MacBook pro to mount an external Firewire hard drive. I am able to mount the disk no problem on other Macs, just not my machine. I haven't received any errors from my machine, and don't see anything related to the Firewire port in the logs. Are there good diagnostic tools for this type of problem that come with the Mac? other free alternatives ?

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• External USB disk drive cannot be remounted in Windows XP

  - by jackhab

  I have Maxtor Basics Desktop 1TB external USB drive connected to Windows XP. The dirve's firmware puts it to sleep after 10-20 min of inactivity and then the drive cannot be mounted unless I reset it via power connector. While in sleep mode I can see the device in the Device Manager under both Disk drives and USB sections. Is there a way to get the drive out of sleep mode without hard reset? Thanks

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• Bios don't detect usb cd-dvd

  - by Rodnower

  Hello, I have GIGABYTE w566 laptop, and I do not know how to find out what my Intell Chipset is, and my problem actually is that in boot time my computer not detect usb LG (super-multi) cd-dvd drive. Windows. by the way, still know to access to device, I have problem only in boot time. Some one know what to do? Thank you for ahead.

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• Instructions per cycle?

  - by Matt Simmons

  I've been learning a little bit more about how processors work, but I haven't been able to find a straight answer about instructions per cycle. For instance, I was under the impression that a four core CPU could execute four instructions per cycle, so a four core CPU running at 2Ghz would execute 8 billion operations per second. Is this the case? I'm sure it's oversimplifying things, but if there's a guide or something else I can use to set myself straight, I'm definitely open to ideas.

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• How to Use 3 Monitors

  - by The.Anti.9

  Right now my setup has a nice big 24" flatscreen in the center, and a 19" flatscreen to the left. And a big gaping hole on the right. I have a 3rd monitor to put there, but I'm not sure how to get the computer to recognize it. Do I need a graphics card with 3 ports? Or can I span the monitors over non SLI-Linked graphics cards? Is it possible to plug my 3rd monitor into the on-board VGA port and have it work?

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• Improve my System, Need some advice/suggestion

  - by Pennf0lio

  Processor: 2.40 gigahertz Intel Core2 Duo Board: ASUSTeK Computer INC. P5B-MX Memory: 2 Gb VideoCard: NVIDIA GeForce 7300 GT HDD: 80GB + 250GB both IDE Operating System: Windows 7 32bit Please give me some advice what to improve in my System. I mainly used it for Graphic Design (eg, Photoshop, Cinema4d, Illustrator, Flash). I was planning to increase my Memory adding 2 GB more, Pushing it to something like 4GB in total. But just found out that recently that I already have 2x2GB installed and should be 4GB in total. When I looked at the properties of my computer, It said "Installed Memory 2GB". I wonder why is that happening? Is the other ram broken?.. I never the computer casing since I bought. so I didn't realize that I already have 2 x 2gb ram. what can you advice. Thanks!

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• Upgrading RAM on a P4 2.8GHz with P4G8X+ ASUS mobo?

  - by iftrue

  I want to upgrade the RAM on an old machine with a P4G8X+ motherboard. Currently, it has 2 512 DDR PC2700 sticks. What's the best RAM I can use on this machine? I'm trying to upgrade my brother's old computer. Help?

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• Small laptop with very high resolution

  - by Xavi

  Is there a small laptop (14in or less) with very high resolution (greater than 1440x900) on the market?

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• Can anyone explain these cpu specs?

  - by Kevin

  Intel® Core™ i7-640M (2.8~3.46GHz, 35W) w/4MB Cache - 2 Cores, 4 Threads - 2.5 GT/s SO i'm buying a new laptop, which i have not done in 6 years. So i am not familiar with any of these cpu specs. It was the highest option for intel for this laptop. So i am assuming it is somewhat fast. But i'd like to learn what these specs mean. Any help would be greatly appreciated. i am not really a computer guy but would love to learn about what I am buying. Thanks!

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• How can I get Windows 7 to work with two Nvidia graphics cards with different drivers?

  - by Max

  This is similar to this question, but I am using more similar cards with Windows 7. I just purchased a Zotac Nvidia GeForce 7200 GS. I have a motherboard with two PCI Express x16 slots. There is already an MSI Nvidia GeForce 8800 GTS being used as the primary card, driving two LCD monitors. I would like the Zotac to output to a TV via DVI-out. Unfortunately, when Windows detects the Zotac and installs its drivers, or I manually install them, Windows stops being able to boot up. If I remove them and re-install the MSI 8800 drivers, I can boot again, but Windows can no longer see the Zotac 7200--it shows up as a yellow triangle in Device Manager. I've read conflicting reports about this. Some people claim that Windows 7 will support multiple heterogeneous graphics card drivers, as long as they are all using the same driver API ("WDDM?"). Others say that they have to be using the exact same driver, or it won't work. Others claim that you have to use the exact same card. which is it, exactly? I know I can run the MSI 8800 in SLI if I purchase another, but I don't need that kind of power--I just need HD-out to my television. I read somewhere that running two cards in SLI precludes you from using 100% of their output ports, so I'm not sure if that's an option. I suppose I could also run two MSI 8800's without SLI, but again, that's more power than I need (and more money than I'd like to spend). Also, I don't think this exact model is even manufactured anymore. Any ideas?

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• ImgBurn CD/DVD burn error

  - by bobby

  I am getting the above error when I try to burn a CD/DVD on my DVD writer. I am seeing this error for every CD/DVD I try to burn. I am not able to write any CDs or DVDs using ImgBurn. What could be causing this error?

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• Virtualization of desktop

  - by Agares

  Hi! I'm thinking about virtualization of my laptop(for educational purposes). My idea is to install very light host OS and have all the rest as virtual machines. Microsoft's Hyper-V Standalone would be very good solution, but it's impossible to access virtual machine from computer, where the Hyper-V is the host(isn't it?). So, which virtualization software would be good for me? I wanna have virtualized Windows 7(and maybe some other windowses). My processor support Intel Virtualization Technology.

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• System fan connection on Mini-ITX server case and motherboard

  - by Robert

  The case: Newegg listing for Chenbro ES34169-BK-120 The motherboard: GIGABYTE GA-D525TUD (Newegg has it as well but I can't post more than one link due to being a new user) As far as the question, the system fan I have no idea how to get these to connect to the motherboard. There are two connectors which then go to extension fan cables. So when you connect these, it should be good, but the extension cables are two connectors that go to the system fans and a female molex connector (if you click the Chenbro listing, look at the 6th picture and you'll see the two connections being made and the molex connector just kind of hanging out in the case). Is there a piece I'm missing to get it to connect to the 3 pin sys_fan section of the board? Thanks,

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• How do I clean dust from a computer?

  - by Jonas

  As computers become faster and generate more heat it gets more important to have good ventilation, but that also increases the amount of dust sticking to the components of the computer. It's of course better to make sure the computer never gets dusty by vacuum cleaning around it (not in it) frequently. But what to do if it's already to late? I've heard that vacuum cleaning the computer itself is very bad, since it can cause static electricity that hurts the computer. So, Does anyone have any tips for how to remove dust from your computer?

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• Can enabling a RAID controller's writeback cache harm overall performance?

  - by Nathan O'Sullivan

  I have an 8 drive RAID 10 setup connected to an Adaptec 5805Z, running Centos 5.5 and deadline scheduler. A basic dd read test shows 400mb/sec, and a basic dd write test shows about the same. When I run the two simultaneously, I see the read speed drop to ~5mb/sec while the write speed stays at more or less the same 400mb/sec. The output of iostat -x as you would expect, shows that very few read transactions are being executed while the disk is bombarded with writes. If i turn the controller's writeback cache off, I dont see a 50:50 split but I do see a marked improvement, somewhere around 100mb/s reads and 300mb/s writes. I've also found if I lower the nr_requests setting on the drive's queue (somewhere around 8 seems optimal) I can end up with 150mb/sec reads and 150mb/sec writes; ie. a reduction in total throughput but certainly more suitable for my workload. Is this a real phenomenon? Or is my synthetic test too simplistic? The reason this could happen seems clear enough, when the scheduler switches from reads to writes, it can run heaps of write requests because they all just land in the controllers cache but must be carried out at some point. I would guess the actual disk writes are occuring when the scheduler starts trying to perform reads again, resulting in very few read requests being executed. This seems a reasonable explanation, but it also seems like a massive drawback to using writeback cache on an system with non-trivial write loads. I've been searching for discussions around this all afternoon and found nothing. What am I missing?

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• Problem setting up DL360G5 with scsi RAID

  - by ernelli

  I have a problem with reinstalling OS on a DL360G5. The BIOS [F9] do not detect any disc controllers and the HP SmartSetup did not find any compatible controllers. Inside the server, the two SCSI disks are conncted to a RAID controller using BCM8603 chipset. How is disc contoller supposed to be setup? I have tried to do a full BIOS reset. EDIT At the moment we suspect that the Smart Array controller E200i/412205-001 is broken. Are there any status LED's that indicate failure or success during start up? At the moment all LED's are off.

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• Looking for a good computer repair kit

  - by johnny

  I'm afraid I'll get ripped if I get the generic kit from Tigerdirect or whatever. For clarity this is not software I am after but physical tools. It should include something for occassional soldering of electronics, crimper, other things I cannot remember. Hoping for ideas or product links (yes I am searching also). Thank you.

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• Windows XP Home Edition SP3 cant recognise PCMIA SD Card

  - by Pozo

  System Specifications: Laptop : Dell Inspiron 6000 OS: Windows Home Edition SP3 SD Adapter: Hagiwara Smart Media Adapter I inserted the card into the slot, windows xp recognises the device, lists the pcmia controller on the device manager list, an entry appears under the IDE ATA/ATAPI category on the device manager as well. However, the device does not show under my computer and the driver does not get assigned a letter number. I checked the system logs from the device manager and there were no logged errors. Checking the Hagiwara support website, the manufacturer indicates that the adapter driver is the same as the windows xp pcmia controller. Checking Dell's website, no specific drivers were listed for that either. General Search on the web indicates that multiple people face similar problems with their SD cards, yet none actually spell out the route issue that causes this. Please let me know if you have any suggestions for further debugging. Thanks in advance

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• Two Different nVidia Cards, One as Graphics, One as Physics - Possible?

  - by Jasarien

  Hey guys, Soon I will have a brand new Geforce GTX 285 to replace my current 8800GT. Will it be possible to move my 8800GT to another PCIX slot, put the GTX 285 into the primary slot and use the nVidia software to make the 8800GT do physics? I have enough PCIX slots on my motherboard (4). The GTX 285 will take up 2, so the 8800GT should fit in the 3rd. If anyone knows if this is possible, I would be grateful to be educated!

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• What precautions should I take once defective RAM has been replaced?

  - by DustByte

  I recently discovered that my RAM is faulty (MemTest86+). I am waiting for new RAM to be sent to me.  It was through sheer luck that I discovered something was wrong. I was copying a large amount of big files and decided to verify the copies by their checksums. I discovered strange discrepancies, and noticed that checksum computation for the same file was not consistent. Now, this is the only problem I have encountered; no BSOD, no crashes, no errors. In a sense this makes me more worried than if I would have had massive crashes. I have no idea for how long the RAM has been faulty, and I have no idea if corrupt bits have been saved into files on my hard drives. I do know the RAM was fine two months ago (tested it back then). I am a user of Adobe's Lightroom and I am worried that photos or the catalog itself could carry corrupt data. Question: what should I do once new healthy RAM has been installed? Reinstall Windows (I'm using Windows 7, 64 bit)? Is there a risk that I will be presented with nasty surprises in the future if I don't? What about personal files? I have backups of some of the files but for newer files I'm not sure I can even trust the backups. It's going to take me many hard hours to manually replace files with older versions, or compare checksums.

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• Best motherboard power supply combo for backblaze server

  - by jin14

  Building a backblaze server as described in this article. http://blog.backblaze.com/ So 45 hard drives in one box. I'm making it a MSDPM 2010 server so I actually don't even need raid cards in there as MSDPM will figure out how to use all of the hard drives on it's own. So need to know what motherboard, CPU, power supply I should get. Primary hard drive : SSD 128GB Storage : 45 1.5GB sata drives OS : windows 2008 Backup software : Microsoft System center Data protection server 2010 Need to know Which mother board to buy which will support 45 SATA hard drives. Don't need a raid card. Which power supply can power all 45 hard drives, 1 ssd drive, motherboard. Best set of equipment that meets my needs wins

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• How can I find a laptop if it has a different model name all over the world?

  - by Mike

  CONUNDRUM: A laptop review in the UK talks about how brilliant the "ASUS ABCDE 55" is, but in America, France, etc there is no such laptop name. In fact it's called "ASUS 12345 AB" - AAARRGH! QUESTION: Is there a way of finding out all the diverse names for the same laptop all over the world? Example: if Samsung create a R2D2500, then what is that spec laptop called in all the other countries (if they release it of course). Or if it's not released, what is their similar spec laptop called in the other countries? I understand that specs may be different, but if I read a review on my trusted UK website, but live in say Australia, I want to be able to find the name of the same laptop in Australia and then check out local places to buy it. So if anyone knows if there is a technique, specific website, or even how to use a company website to find out these annoying name changes I'd really appreciate it.

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• When machine is turned on, only the fan runs

  - by Gopal

  Hi, I have an issue slightly similar to this one posted here, http://superuser.com/questions/127016/troubleshooting-monitor-never-turns-on-system-fans-running-dvd-rom-does-not-op My configuration is as follows: EPOX 9NPA+ Ultra motherboard AMD Athlon 64 CPU Corsair 2 x 1GB PC3200 DDR RAM 1 DVD RW drive and 1 CD ROM Drive SATA 250 GB Hard drive 400W Power supply EVGA 256MB graphics card I have had this configuration for about four years. Last month, I started having issues in starting the machine. It wouldn't start when I press the ON button in the front of the case. So I used to pull out the power cord and plug it back in and then switch on in the front, and it used to work fine. And then one fine day, when I plugged in the power cord at the back, even without switching on the power-on button at the front, I saw that the fan at the back was running. So I opened the system. Then I could see that all the fans inside were running. I replaced the power supply. No luck there. Then I replaced the CMOS battery. Again nothing improved. Even when I removed all the cards and memory, I still get one short beep. That's it. Any idea how to proceed on this? Anything else could be checked? I want to confirm if this is a motherboard failure, before proceeding to replace it.

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• How do I find out with Ubuntu whether my computer has a SATA or IDE hard drive bay

  - by Pieter

  Is there a tool for Ubuntu that will detect whether I have a SATA- or IDE-powered hard drive bay, even if there's no hard drive inserted?

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