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• What is the difference in RAM speeds?

  - by jasondavis

  I am building a new PC with the intel i7-930 processor. I am wanting to use 12gb of RAM for it (6x2gb sticks). Here is some of the RAM I am looking at G.SKILL 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop 2 of these 3 stick kits. They are rated at 1600 however some of the user reviews on that product say they xcould not get it to run at 1600 and the supplier who makes the RAM made a comment that "I7 doesn't support over DDR3 1066" So I am curious, I do not know much about this, I know the more GB of RAM the better but as for the speeds, I am not sure how much of a difference it makes. So can someone explain to me what the difference in performance may be based on speeds of 1200 vs 1600 ram?

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• Troubleshooting server performance with a hosted server?

  - by ProfessionalAmateur

  We are in a tough spot, we have a hosted server with the following specs: OS: Windows Server 2008 R2 Enterprise SP1 64bit Processor: Intel Xeon X7550 @ 2GHz (8 processors) RAM: 16GB The file system is on a SAN or NAS (not sure). We are seeing very odd issues where a user will open a 25MB .xslb file and it takes literally 60-120 seconds sometimes. The server is just dog slow for excel. Resources are not being pegged, CPU never jumps up, plenty of RAM... it's just oddly slow. Our host has been looking at the issue for several weeks with not much to show for it. Is there a utility I can run myself that will help trackdown our issue? I have found Server Performance Advisor V1.0 Any experience in using it? Our host is ultimately responsible for fixing this, but we are going on 1 month and our users are losing patience. Any tips would be helpful.

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• Windows XP Installation issue - cannot find hard disk

  - by Marco

  A friend of mine gave me a laptop with Windows 8 installed and nothing else. I don't like it so I am trying to remove it by installing Windows XP. I have a windows XP installation CD that I have used before and worked fine, but didn't work when I tried to install it on the Windows 8 machine. It keeps telling me I don't have a drive to install to. Then I log into Windows 8 again and install check partitions. I found 2 and tried to make a new one but it will only let me make one of 69mb. Next, I tied to find a way to go back to XP with BCD install and try to set the boot loader for XP but it wasnt there. Somehow I deleted the bootloader for Windows 8 and now it asks me for a recovery tool for media. I am not familiar with the laptop specs, but it is a Toshiba with about 250GB storage, and above 1GHz processor.

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• Full Screen Flash is choppy (nVidia GeForce 8200M)

  - by Joel Martinez

  I have a new compaq presario laptop (I asked SU for advice before I bought it :-) ). It has a nVidia GeForce 8200M video card. When I try to play a flash video full screen, it plays really choppy. This is a brand new computer and is well more powerful than my previous computer so I know it's not a matter of the full screen being too processor intensive to play, or a bandwidth problem. Even playing HD hulu videos full screen was fine on my previous laptop. Any advice on how to get better performance here? edit: World Of Warcraft is able to play at a great framerate, so this machine should definitely be able to handle a simple little flash video ;-)

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• Windows XP won't boot after drive transplant

  - by Nathan

  Hi all, I moved my hard drive from my Lenovo laptop into my Asus Eee PC netbook. When I started the netbook, after POST all I got was a black screen with a cursor in the upper left corner. I thought that the migration should work OK because this was a 32-bit version of Windows XP, and the Atom processor in the Asus should support the x86 instruction set. However, I don't know much about Windows, so maybe this was a dumb thought. I did verify that the BIOS can find the drive. It required major surgery to replace the drive, so any solution requiring me to remove the transplant drive is not going to fly. Keeping in mind that the netbook has no optical drive and that I have no other Windows computers (all my other computers run Linux), is there any way I can fix this problem? Thanks! Nathan

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• What version of SCO Open Server are guys using out there and on what hardware?

  - by Gath

  I have some old applications which are running on SCO Open Server 5.0.5, and i would love to move them to SCO Open Server 5.0.7 and on modern hardware(servers), currently am running SCO on old IBM PL 300 personal computer, on 92MB Memory, one processor, and it has been serving the clients pretty well. Now i have New Modern IBM xseries Servers and i would love to migrate the same applications to those new servers. Problem is, SCO 5.0.5 is unable to detect some of the hardware components in the new servers. I read somewhere that SCO 5.0.7 is able to detect the newer hardware even the USB ports etc. Is there anyone running SCO Openserver out there, and on what hardware architecture are they running on? Gath

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• Patch Management and System Inventory on a Windows network?

  - by Scott

  What are some good ways to have patch management and systems/hardware inventory for a Windows (Server 2003 or 2008) network? For example, at a minimum knowing the basics for all the machines out on the network such as OS version, patch level, what hotfixes they have, processor, ram, etc. Even better would be knowing more details such as peripherals. Ideally if there were a way to push service packs, and hotfixes (and other software?) to the machines, that would be great. What are some options for this?

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• RHEL 4.8 / Sybase 12.5.4 64 bit install error - I have libaio i368 installed I need libaio x86_64 in

  - by Jon

  I am trying to install Sybase ASE 12.5.4 64 bit. I know the machine has a 64 bit processor It is giving me an error during install saying: "error while loading shared libraries: libaio.s0.1" I run the command: rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE} (%{ARCH})\n' libaio Which returns: libaio-0.3.105-2 (i386) I found a src rpm for libaio-0.3.102. I followed the steps to install which included using make. It appeared to install without error. But when I run the rpm -q command again I still only see the i386 version installed. Not really sure where to go from here. Ideally I would like to find a regular rpm of libaio x86_64 for RHEL 4.8. If I were to find one would I upgrade the package that is already there? Would I remove and install the new one. Or would I install and two separate version of the library?

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• Is 850W SMPS enough for the below Config?

  - by bali208

  We are planing to assemble a file server of the following configuration. 1) Intel S2400SC2 Motherboard. 2) Xeon 2407 Processor x 2 (Dual Processors) 3) 8gb x 8 ECC DDR3 RAM 4) One 2 TB Seagate HDD. 5) 8 cabinet fans fitted for NZXT Switch 810 Cabinet. Our question is is CoolerMaster 850 Watts power supply enough for our machine? Or we have to put 1050 Watts power Supply? Please suggest the best Brand and Wattage of SMPS we have to buy for our system. Thank you.

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• Disable Memory Modules In BIOS for Testing Purposes (Optimize Nehalem/Gulftown Memory Performance)

  - by Bob

  I recently acquired an HP Z800 with two Intel Xeon X5650 (Gulftown) 6 core processors. The person that configured the system chose 16GB (8 x 2GB DDR3-1333). I'm assuming this person was unaware these processors have 3 memory channels and to optimize memory performance one should choose memory in multiples of three. Based on this information, I have a question: By entering the BIOS, can I disable the bank on each processor that has the single memory module? If so, will this have any adverse effects or behave differently than physically removing the modules? I ask due to the fact that I prefer to store the extra memory in the system if it truly behaves as if the memory is not even there. Also, I see this as an opportunity to test 12GB vs. 16GB to see if there is a noticeable difference. Note: According to http://www.delltechcenter.com/page/04-08-2009+-+Nehalem+and+Memory+Configurations?t=anon, the current configuration reduces the overall data transfer speed to 1066 and in addition, the memory bandwidth goes down by about 23%.

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• Hardware Raid Card Reviews with SSDs

  - by Nalandial

  Yes I realize there are several questions about this but none of them seem to have the answer I'm looking for. I have two SSDs and am looking to buy a purely hardware raid card for them; however, I can't seem to find any reviews that have specifically tested hardware raid cards with SSDs rather than testing the SSDs themselves. I'm looking for a review because I'm assuming that for example: 100% gain with two 7200rpm drives doesn't necessarily mean 100% gain with a pair of SSDs, since there would be higher speeds, meaning more throughput, meaning more processor/memory usage for the card. If this assumption is wrong then that's fantastic; however if it's true, I am quite sad and would really appreciate any advice or reviews you can find. Thanks in advance!

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• SQL Performance Problem IA64

  - by Vendoran

  We’ve got a performance problem in production. QA and DEV environments are 2 instances on the same physical server: Windows 2003 Enterprise SP2, 32 GB RAM, 1 Quad 3.5 GHz Intel Xeon X5270 (4 cores x64), SQL 2005 SP3 (9.0.4262), SAN Drives Prod: Windows 2003 Datacenter SP2, 64 GB RAM, 4 Dual Core 1.6 GHz Intel Family 80000002, Model 6 Itanium (8 cores IA64), SQL 2005 SP3 (9.0.4262), SAN Drives, Veritas Cluster I am seeing excessive Signal Wait Percentages ( 250%) and Page Reads /s (50) and Page Writes /s (25) are both high occasionally. I did test this query on both QA and PROD and it has the same execution plan and even the same stats: SELECT top 40000000 * INTO dbo.tmp_tbl FROM dbo.tbl GO Scan count 1, logical reads 429564, physical reads 0, read-ahead reads 0, lob logical reads 0, lob physical reads 0, lob read-ahead reads 0. As you can see it’s just logical reads, however: QA: 0:48 Prod: 2:18 So It seems like a processor related issue, however I’m not sure where to go next, any ideas? Thanks, Aaron

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• Anyone know of a good way to sell used servers?

  - by RandyMorris

  We have a couple of servers we no longer need now that we are fully hosted on a managed host (rackspace). They were purchased for over $10,000 each but we realize that over time their monetary value drops. Anyone have suggestions or experience selling these in a proper way? They are dual xeon processor 2U rack mountable with 4+GB RAM, intel boards, 6x 72GB 15,000 RPM SCSI Drives with raid controller redundant power supply. We are in Southern California area. I can be more specific on any information if there is interest. I know there is ebay and the like but these servers are like the family dog that has to be given up and we are looking for a proper home for a fair price. I will end up auctioning it off if need be in the end though. Thanks in advanced for any help!

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• PSU Suggestions for SLI EVGA GTX 680 + i7

  - by JMH

  So i am putting together a new machine and am trying to determine the best PSU to go with for this setup. Here is the build i am thinking about Processor Intel Core i7-3770K Ivy Bridge 3.5GHz Motherboard ASRock Z77 Professional Graphics Card (2 SLI) EVGA 02G-P4-2680-KR Sound Card HT | OMEGA eClaro 7.1 Fan/Heat Sync ZALMAN CNPS9500A-LED Case COOLER MASTER HAF X RC-942-KKN1 RAM G.SKILL Ripjaws X Series 32GB (4 x 8GB) SSD Of some Sort So my guess is that i need a 750 -1000W PSU, but which brand.... how much, etc --- really in the woods. Thanks -Josh

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• Macbook Pro 2.66 GHz vs. 2.8 GHz

  - by nevan

  Is there much advantage in getting the higher end Macbook Pro compared to the mid-range one? The differences between the two are: 2.66 GHz vs. 2.8 GHz 256 MB graphics memory vs. 512 MB 3 MB L2 cache vs. 6 MB 320 GB hard drive vs. 500 GB $2000 vs. $2300 I've looked around, but I can't find any direct comparisons for the two machines. I'd be using the machine for development. I generally use a computer for 3 years. I don't really play games, but do use Photoshop regularly. I've heard that once Snow Leopard arrives, the graphics chip will be used to boost the main processor, so I was wondering if getting the one with more graphics memory would be an advantage?

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• Does my motherboard support dual-core processors?

  - by Filip

  Hi there! I'm very confused about my motherboard (ConRoe945PL-GLAN) It's manual says, that i can use only some kind of ConRoe processors. But some pages on internet says that i can plug in almost everything. For ex.: aria.co.uk says that i can plug in even Core 2 Duo. It would be awesome if i would not have to buy new motherboard! Anyway, if my motherboard will not let me to plug in Core 2 Duo, should i buy Pentium 4 (very cheap) with 3,2 GHz and insanely overclock it to have some performance or buy new motherboard + new processor for big money? THX for any answers! =)

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• mysql settings - using the available resources

  - by Christian Payne

  I've got a lot of processing work I need to run on a mysql server. I've installed mysql 5.1.45-community on a Win 2007 64bit. Its running on a xenon, 3ghz 6 processors with 8 gig ram. It doesn't seem to matter what queries I run (or the number I run at the same time), when I look in task manager, I'll see one processor is out at 100%. The other 5 are idol. Memory is static at 1.54 gig. When I installed mysql, I used the wizard and selected the default "server" (not workstation) option. I feel like I should be getting more bang for my buck. Is there something else I should be monitoring or something I should change to use the other system resources???

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• Choosing between a dedicated and virtual dedicated server for my startup

  - by MarathonStudios

  I'm about to launch a startup site I've been working on for some time, and I'm just now looking over hosting plans. The site's main feature is fairly processor-heavy (a lot of text processing), so I probably need something other then shared hosting to ensure I don't get shut down for overusing resources. I would like to spend as little as possible on hosting until the site starts generating income, so under-$60/mo is my goal. One caveat is that I need a Windows box for this particular site, so it's harder to get a good deal. For that price, I can either get a bottom-tier dedicated (2gigs ram, pentium 4) or a middle-tier VPS (3gb RAM, a bit more traffic and HD) for a few bucks more per month. I had a bad experience with a low-end VPS a few months ago, so making sure that whatever I get can handle the basic traffic of a website as well as giving me what I need (extra processing power) is essential. Do you have any suggestions as to which way to go, or a certain hosting company you've worked with that you can recommend?

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• New graphics card (GTX 760) slowing down entire PC

  - by Cayetano Gonçalves

  My new graphics card is making my PC totally unusable. It boots up really slowly, and when the windows screen comes on, the mouse lags really far behind. Nothing opens at a normal speed. However, when I put in my 5-year old graphics card, it all works fine. I'm currently using a Foxconn Renaissance LGA 1366 Intel X58 ATX Motherboard, Intel Motherboard Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Processor, and a EVGA SuperNOVA 850G2 80PLUS Gold Certified ATX12V/EPS12V 850W Power Supply . I know it can't be the power supply, because I just bought it today to try to fix the problem. I've also installed the newest version of BIOS available for my motherboard. I've also seen extreme variations in CPU while the new graphics card is in, and when the old graphics card is installed, it is much calmer. Any thoughts?

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• Hyper-Threading and Dual-Core, What's the Difference?

  - by Josh Stodola

  In a conversation with the network administator, I mentioned that my machine was a dual-core. He told me it was not. I brought up the task manager, went to the perfomance tab, and showed him that there are two separate CPU usage graphs. I have a quad-core machine at home and it has four graphs. He told there were two graphs on this particular machine because of hyper-threading. I used to have a hyper-thread pentium 4 processor back in the day, but I never fully understood what it meant. So what is the difference between hyper threading and dual-core? And how do you tell which one you have?

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• How can I get more info on high-CPU rundll32.exe process?

  - by Herb Caudill

  I recently clean-installed Win7 on my HP8530. Everything works well most of the time, but for the last few days, every morning after my computer has been idle overnight, I find that rundll32.exe is consuming a steady 50% of CPU (i.e. all of one processor). The only way I can make it go away is by restarting. Process Explorer has no information on what the process is running. If I try to do anything to rundll32.exe (kill process, suspend, etc.) I get "Error opening process: Access is denied." None of the tabs in the ProcExp properties dialog has any information at all. I have Norton Internet Security running with the latest definitions; I've run a full system scan and it gives me a clean bill of health. How can I get more information on why this process is running?

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• Installing 64-bit Ubuntu alongside 32-bit Ubuntu?

  - by Macha

  I have a 64-bit processor in my PC, but because of worries over application compatibility, up until now I have been using 32-bit Ubuntu (and 32-bit Vista because Dell wouldn't sell me 64-bit with my PC). Is it possible for me to install 64-bit Ubuntu alongside 32-bit ubuntu and 32-bit Windows Vista, so I can choose between them at boot and share data, and without uninstalling my 32-bit Ubuntu? My partitions are as follows Drive 1: 10 GB Vista recovery partition (E:), 240 GB Windows NTFS parition (230 GB used, C:). Drive 2: 167 GB Windows NTFS Partition (130 GB used, D: ), 8 GB swap partition, 13 GB / partition (6 GB used), 62 GB /home partition (20 GB used).

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• For virtual machines, when SMP is available on the host, should guest also have SMP setup?

  - by supercheetah

  I'm trying to find out the best "bang for my buck" so to speak in regards to virtual machines, and SMP. I have an Intel Core 2 Duo, which of course has two cores and the VT extensions, and I'm running Ubuntu Linux (host) on it with VirtualBox, which has Windows Vista (guest). Currently I've got the guest machine setup for two processors to give Windows a chance to manage its own parallelism, but I'm not certain that it's any faster. I've tried it with just one processor, but it's hard to tell if it's any better. Any thoughts? Should the guest have two processors setup?

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• How is time measured in computer systems?

  - by DRK3

  Something I have been puzzled about is this: how exactly does a computer regulate and tell time? For example: if I were to write a program that did this: Do 2+2 then wait 5 seconds How does the processor know what "5 seconds" is? How is time measured in computer systems? Is there a specific chip for that sole purpose? How does it work? Thanks for any replies; I'm really interested in computer science, and would love any help you could give me =D.

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• Intel Xeon vt-d query

  - by deploymonkey

  Does Xeon westmere ep (xeon 56xx series) have vt-d (=iommy / direct io) or does intel TXT (Intel® Trusted Execution Technology) include vt-d? I'm at a loss. I've been researching current processors for an important project for some time now. I need to know, if the xeon 5600s (Westmere EP) include vt-d (iommu/directed io/pci passing) because the system will run virtualized guests. This enables direct hardware access eg. pci passthrough, in xen for example. It seems that the 5600s TXT should incorporate vt-d and that xeon 5600s should include vt-d as they are ramped up 5500s, but there is no conclusive answer anywhere. Intel's processor comparison only states that 5500s have vt-d and no TXT and 5600s have no vt-d but TXT. I'd be really grateful if anybody could clear this up and possibly even provide a citation. Thanks a lot.

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