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Thread: EP45-DQ6 BIOS PROBLEMs and DUAL BIOS trigger mechanism




  1. #11
    Join Date
    Aug 2005
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    2

    Default Re: EP45-DQ6 BIOS PROBLEMs and DUAL BIOS trigger mechanism

    I've found this information did work on me. I've found this in "http://www.tomshardware.com/forum/260048-30-gigabyte-ep43-with-dual-bios-black-screen-bios-update". This isn't my solution, so don't ask me details:

    I don't know have somebody ever find this, but I've found a new and quick solution for loading backup bios :) I've tried a lot of solutions for loading backup bios over main bios, but none of them is a quick solution. Every solution was taken hours. But I've found a qucik way.
    I must mod bios with gpxe, so I'm updating bios regularly. Sometimes, modding bios with gpxe is failed, so my machine doesn't start because of dead bios. So everytime I must recover bios with backup bios. But it is interesting thing that gigabyte's dual bios algortihm can't detect sometimes that main bios is started or not. So, we should disable the main bios awhile for loading the backup bios. I tried a lot of things, connecting VSS and HOLD# pins(previous post), shortening 5-6 pins, floppy, usb, etc.. I've been success with 5-6 pins method two times. But this method takes one hour or more, and it is some tiring. So I decided to examine the diagram of the flash spi chip that @Phaeilo gives the link (http://www.sst.com/dotAsset/40504). After I examine it, I've realized that if I connect CE(Chip enable) and SCK(Clock), the main bios's CE cycle will be broken. If you look at the document you'll see that the chip starts working when the CE cycle goes to low from high state. If I connect to SCK with CE, then every cycle(beat) of the clock the CE's state change low to high then high to low, etc.. So backup bios can see that the main bios is not enable.


    I'm not responsible if your mb is dead, I don't give any guaranty. if you want to fix your dead bios which has a backup bios and if the backup bios is not loading, then you can try this method. In Brief, you should have steady hands, a piece of wire(maybe paper clip). Power off the machine. Connect CE and SCK pins(1 and 6 pins). Then turn on the machine, but you should remove the wire after a second. I don't know excatly when you should remove the wire, but wou shouldn't wait long than 2 second. After that you should hear a beep sound. And you should see that backup bios wirtes on the main bios. Wait until the process is finished. After that the machine will restart.


    My mb is Gigabyte GA-MA785GMT-UD2H(rev 1.0). A final notice is that don't touch VDD pin never(I was shocked :) ).


    Regards.
    Last edited by ziddiri; 03-27-2010 at 10:49 PM.

  2. #12
    Join Date
    Nov 2012
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    Serbia,Belgrade
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    2

    Default Re: EP45-DQ6 BIOS PROBLEMs and DUAL BIOS trigger mechanism

    Quote Originally Posted by ziddiri View Post
    I've found this information did work on me. I've found this in "http://www.tomshardware.com/forum/260048-30-gigabyte-ep43-with-dual-bios-black-screen-bios-update". This isn't my solution, so don't ask me details:
    Can i try this on my mb GIGABYTE GA MA 790 FX DS5 ...? I'v see P.O.S.T. screen an continaullyreset, cant'go further to win. can't go in setup and can't go in Qflash ....it write on screen preparing to go in setup but only reset(btw sorry for my bad english)
    my email is radovanovicd@live.com
    tnx in advance!
    P.S. at first bios was blocked (bricked) than i try with pin 4&7 nad pc is alive again but only till post screen

  3. #13
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
    Join Date
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    Location
    Tacoma, WA. [USA]
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    Default Re: EP45-DQ6 BIOS PROBLEMs and DUAL BIOS trigger mechanism

    You should NOT include your email address in a post, because spammer's might add it to their lists.
    We will reply in this thread.
    Try posting with a minimal hardware setup; cpu, only one memory module, keyboard and graphics card.
    Disconnect all hardware that isn't required for entering the bios.
    Once you can enter the bios, load optimized bios defaults and then save settings and exit.
    Re-enter the bios and make any required bios changes for your memory, save settings and exit, and then turn off your system so that you can connect your hard drive to be able to boot to your operating system.

    Can you test with another power supply?
    Your power supply might be part of the problem.
    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)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    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
    .


  4. #14
    Join Date
    Nov 2012
    Location
    Serbia,Belgrade
    Posts
    2

    Default Re: EP45-DQ6 BIOS PROBLEMs and DUAL BIOS trigger mechanism

    Quote Originally Posted by profJim View Post
    You should NOT include your email address in a post, because spammer's might add it to their lists.
    We will reply in this thread.
    Try posting with a minimal hardware setup; cpu, only one memory module, keyboard and graphics card.
    Disconnect all hardware that isn't required for entering the bios.
    Once you can enter the bios, load optimized bios defaults and then save settings and exit.
    Re-enter the bios and make any required bios changes for your memory, save settings and exit, and then turn off your system so that you can connect your hard drive to be able to boot to your operating system.

    Can you test with another power supply?
    Your power supply might be part of the problem.
    yeahhhh, i did it ...over my epromm programator.i then unsolder(hot air on 349C) main bios from MB then solder on add-on for eprogram...put add-on,put in programator then found bios on gigabyte web site,and add over software in my chip,then again solder on MB...job done in 15 min...a tried every way to get bios from backup bios chip but in that bios is only basic instruction...now all is 100% ok

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