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Thread: Help - looping after POST

  1. #1
    Join Date
    Mar 2009

    Default Help - looping after POST

    I built a custom PC with a Gigabyte GA-EP45-D3SR motherboard, Intel P45 chipset, and Intel Intel Core 2 Duo E8400 Processor, CORSAIR XMS2 DHX 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 RAM and XP Pro s.p.3; System has run fine for about 2 weeks.

    I was downloading the latest graphics driver for my ATI Fire GL V3350 and when I executed the driver installer, it processed about half way through and then stopped and a dialog said it could not complete, so I went back to the exe file and tried to execute again, but it would not even start, so I deleted the exe file and downloaded again from the ATI driver site and executed. This time it loaded and said I needed to re-start the system.

    Upon re-start, the PC posted, showed the Gigabyte banner, and then started looping through another post, Gigabyte banner, and so forth.

    I've tried addessing the BIOS, and the CMOS setup, but no go, it just continues to loop. Can you help ?

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: Help - looping after POST

    If you have a speaker connected to the mobo's speaker pins, you might hear one of many possible beep codes that would indicate a specific problem. The various beep codes should be listed in the mobo user manual in the troubleshooting section near the end of the manual.

    NOTE: Many problems are due to a poor connections. Verify that everything is properly seated; cables, connectors, memory, etc.

    1) Turn your computer off.
    2) Unplug the external power cable from your power supply (psu).
    3) Wait 5 - 10 minutes or longer.
    4) Reconnect the power cable.
    5) Turn on your computer and immediately enter the bios (if possible). If you can't enter the bios, repeat steps 1 -5 several more times. If the problem remains, you'll need to try clearing CMOS.

    6) Don't go into into Windows until you've first verified that your bios settings are still correct. If your bios settings are already saved in a bios profile, LOAD OPTIMIZED DEFAULTS.
    7) Save settings and exit (F10).
    8) Go into windows using optimized defaults and verify that you don't have any registry errors and that everything is stable.


    The CLR_CMOS pins are usually located near the mobo's front header panel or near the mobo's battery. There is a mobo diagram near the front of the mobo user manual that shows mobo components and connections.

    To clear the CMOS, the 2 pins need to be connected for 5 - 10 seconds. You can do this using a small hard drive jumper connector or you can use a flat bladed screwdriver. You want to momentarily connect the pins together. Don't let the screwdriver touch any other parts of the motherboard.

    Try to boot after you've completed clearing the CMOS. If it boots OK, perform steps 6 - 8 above.


    Note the battery orientation; the letters are on the top of the battery. Carefully remove the mobo battery by pressing the metal tab outwards.
    Leave the battery out for 5 minutes, some recommend leaving the battery out for 20 minutes, 1 hour or even overnight.
    Replace the battery and see if your computer boots. If you're successful, perform steps 6 - 8.
    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
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
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    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S

  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    PCB Island

    Default Re: Help - looping after POST

    Yeap, you are going to need to clear your CMOS, here is my suggested method in post # 2 >>

    Then It sounds like you need to add some ICH Core and ICH I/O Voltages because once you drivers loaded the card picked up some steam and may need more voltages. That is just my thought there since you are not getting to a windows BSOD though, I am not sure

    Was you running for two weeks with no driver?

  4. #4
    Join Date
    Mar 2009

    Default Re: Help - looping after POST

    No, I was not running without a driver. I was using the driver that came with the video card, but there was a later driver listed as an update.
    Thanks, I'll get back

  5. #5
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    PCB Island

    Default Re: Help - looping after POST

    Ahh well sometimes newer drivers are not better for sure. I would try to clear your CMOS and see if you have any better luck. If not, try with one stick of ram and NO Hard drives and see if you can then enter the BIOS

    Let us know how you come along with this

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