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Thread: EP45-UD3R: Rear USB ports inoperative




  1. #1
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    Question EP45-UD3R: Rear USB ports inoperative

    Having a little trouble with the new box that I built for my buddy.

    Gigabyte EP45-UD3R
    OCZ PLATIMUM 1066 (PC28500) (ONLY 2GB INSTALLED in #2)
    INTEL E7400
    THERMALTAKE PUREPOWER 500W
    EVGA GEFORCE 9500GT
    SEAGATE 250GB SATA HD
    PLEXTOR PX-850SA BURNER
    MS WONDOWS XP HOME SP3

    All seems to be working fine, but the rear bank of six (6) USB ports are inoperative.

    The front two in the case that I plugged into the board USB1, I believe, are working fine, but none of the rear USB ports are.

    In the BIOS (F9), USB controller is turned on, as is the USB 2.0 controller, USB Keyboard and USB mouse, but I was advised to disable legacy USB storage detect (?)

    He’s got the box now and isn’t a techie, so I just need ideas when I visit him next time I can perhaps check something I’ve overlooked.

    Any ideas? Bad board? Dumb builder?

    Update from my friend:

    "I pretty well have determined that there is something wrong with the USB back ports, at least what I will refer to as the left bank running up and down.
    I don't know how they get powered but I hooked up my web camera that was already plugged in but it didn't respond. I moved it to the front USB and all was good so I moved it to the right bank of USB's and no go. Oddly enough I moved the mouse to the rear and it wouldn't respond on the right or left bank of ports."

    I think the mouse hase to be pluggen in on power-up, yes? So, that may me not a good clue. However, it would seem that just the extreme left bank of ports are hosed. Can't imagine anything less than a MB problem, but I'm no expert.
    Last edited by ming; 08-09-2009 at 09:48 AM. Reason: additional info

  2. #2
    profJim's Avatar
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    With w2k pro (sp4), I had problems several months ago with my usb ports.

    My fix was to delete all usb settings in windows device manager; Universal Serial Bus Controllers, Keyboards and Mice and other pointing devices.
    I rebooted and everything was "magically" fixed.
    Note: You'll need to use a ps2 keyboard connection to avoid problems when you reboot.

    USB Legacy Storage detect is only needed if you want to be able to boot from a usb device. Overclocking problems can occur if this setting is enabled.

    Were OPTIMIZED bios settings loaded before any bios settings initially changed?
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  3. #3
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    Thanks for the fast reply profjim. Iím beginning to have a little hope now.

    Initially, I did start with Ďload optimized defaultsí, but had so much RAM trouble that the last time I set it to Ďload failsafe defaultsí, and thatís where it is now, I believe. It is stable and my friend does not need a screamer.

    Iíll try the disabling of all USB devices and do a re-start with a ps2 keyboard and see if that fixes it. It seems so strange that only part of the ports would work, but who knows?

    Thanks again and Iíll report back as soon as I get a chance to see it again in person.

  4. #4
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    When you visit, I'd definitely load optimised defaults. This may or may not have anything to do with the USB problem, but you never know.

    From others experiences here, sometimes fail-safes can cause problems rather than solve them. Likely a bit of fine tuning is all that's needed to get the RAM stable with proper mobo settings. The worst culprits for RAM problems are Static tRead, primary timings, System Memory Multi, RAM voltage or VDIMM and MCH Core Voltage.

    As a good starting point, assuming a stock 266 FSB, set tRead to 7 (both channels), 5-5-5-15 for the main timings, 2.2V (max rated) for VDIMM and 1.2V for MCH core. Set the (G) MCH latch to auto and cycle through the System Memory multiplier settings until it reads 4.00A. This is the 266 strap and will run the RAM at 1066 with a 266 FSB. If you get a fail, it's worth trying the other 4.00 straps if there are any.

    If you really struggle with the RAM at 1066, it may be easier to get it going at DDR-800 with 4-4-4-12 timings. The RAM is more than capable of doing that at its max 2.2V. Your friend will notice no performance difference unless he runs a synthetic benchmark.

    Also double check those USB controller settings in the BIOS to make sure. Also check that the board is marrying up with the back plate correctly and that there's no metal touching where it shouldn't, causing a short near the ports.

    Good luck. Sorry it's not something your mate may be able to do by himself, but it's a good comprehensive trouble shoot method to get Optimised Defaults working. Fail Safe may cause problems later down the line.
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  5. #5
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    Thanks so much, Psycho101. Youíve put 25 hours of troubleshooting into one post!

    Iíve printed out this thread and will take it to my mateís house when I visit next week. I think that between your advise and profJimís, I could qualify as a hero (if I donít tell who gave me the answers!).

    Iíll give the board the thrice over and load optimised defaults. If still problems, Iíll lower RAM to 4-4-4-12 as you suggested.

    Again, I thank you sincerely and profJim for taking your valuable time to help a new guy.

    Your efforts are greatly appreciated.

    -dave-

  6. #6
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    Before I fixed my USB port problem, my system wouldn't detect or recognize USB flash drives, but my USB mouse and keyboard worked fine when they were connected to the rear ports. My flash drives were not recognized in any ports; back panel or front panel.

    At the time I was trying to find a solution, my mobo was NOT installed inside the computer case.
    Follow Psycho101's suggestions and let us know how you make out.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
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    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
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  7. #7
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    Wow, profJim, I hadn't realised that the USB problem was so extensive.

    A simple guy, like me, would think Windows was an inert product: Whatever you put in, comes out. But, I'm finding that isn't the case....

    Even if I get this other box fixed (with your help), I may build another to learn a bit.

    In the "old" days, it seemed a guy plugged in the parts, made a few minor adjustments and, vola, a computer.

    Now, things seem more difficult, but I'm getting older, yes?

    My sincere thanks for your help, my friend. :)

    -dave-

  8. #8
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    I had no usb problems when I built my system. After 3 months of use with no problems, my usb flash drive problems appeared. An internet search didn't provide any solutions. I guessed that the problem had to due with usb power supply issues, even though my usb keyboard and mouse work fine, while none of my four flash drives were recognized when they were plugged in. When I booted with one of the usb drives connected, the time to finally get into windows was about 5 times longer than normal, and the usb read/write times were almost zero!

    Window's Device Manager showed no problems and I was going to wipe my boot partition and do a full re-install. It was an act of desperation that I tried and succeeded with deleting all the USB categories in the Device Mangager.

    Let us know how you make out.
    Glad to have helped you, that's what we're here for.

    Murphy's 7th corollary: Nothing is ever as simple as it looks.
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    .


  9. #9
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    Just giving you an update on the box that I built for my buddy.

    I got it back yesterday and tried the many BIOS adjustments that were suggested. It improved a little as far as stability, but would still get a BSOD every couple of hours plus only one of the 8 USB ports would work.

    So, having a brand new Gigabyte EP45-UD3R board (RMA dupe), I swapped boards, loaded optimized defaults, raised the memory voltage to 2.1 and became a spectatorÖÖ

    ÖÖ.Same problems! Not too stable and only one USB port working. What?

    Well, decided that the Windows XP system may have been hosed initially so I did a repair.

    IT WORKED!

    Eight, count-em, eight working USB ports. Runs Memtest86 for hours without fail. It accepts new program installs where it would reject them before and it just feels stable.

    Iím still running only one stick of OCZ 2Gig in slot #3 because Iím a coward and donít want to wake a sleeping dogÖ.LOL

    So, guess it was a combination of problems that a more experienced builder than I was would have recognized but, without your help, I would have been truly lost.

    The original windows must have been partially hosed due to the BIOS settings (you were all correct, fail-safe isnít safe!) and I was fighting Windows problems and memory/BIOS settings that seemed correct, but Windows would hiccup and I thought it was a BIOS setting.

    WOW! Iím not going to quit my day job, yes?

    Anyway, I just seem to have another known-good board, some new G.Skill memory coming, a new DVD burner coming (thought they were the problems), and Iím going to put another box together for myself. One that I can play with for weeks, or months. Be forewarned, Iíll be backÖÖLOL

    Thanks so much to you all, this is a very special place and youíre all very special people.

    -dave-

  10. #10
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    Default Re: EP45-UD3R: Rear USB ports inoperative

    Nice to see you got things going finally!

    Sorry I did not chime in on this earlier, you could have likely just updated/reinstalled the chipset drivers and the USB Issues would have been corrected. That's ok though a clean install is always good for your system

    Post back anytime

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