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Thread: EP35-DS4 failed BIOS flash - dead system




  1. #1
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    Unhappy EP35-DS4 failed BIOS flash - dead system

    I think I destroyed my motherboard. Iím working on this for 10 hours now, Iíve read a lot of different threads, and I would really appreciate some expert tips!
    My motherboard is a Gigabyte EP35-DS4 rev 2.1 and the situation is the following:

    After flashing to a modded bios with Q-flash (not with a Windows tool) I did not load the optimized defaults. I didnít want to go to the hassle of reconfiguring my OC settings and because everything was working fine I decided not to load optimized defaults. Now I realize that this was a very very stupid thing to do. But my flash was successful, everything worked! The only thing was that I got 2 long beeps when booting, before the normal short POST beep. Iíve read that on a P35 a modded bios can give beeps like this, so I let it be. Everything worked as it should have and I was happy that I survived another bios flash.

    A few days later I realized my RAM settings in bios were not optimal; Vdimm was 1,82V and my RAM was supposed to be 2,1V. (I also didnít know for how longs itís on 1,82V) So I increased Vdimm slowly. Everytime I saved BIOS and rebooted. The weird thing was that Vdimm did not increase. Whether I added +0,1V, +0.2V, +0.4V. Vdimm stayed on 1,82V, both in BIOS and with Everest 5.5 in Windows. This was weird and I decided not to up the voltage more than this. I thought maybe Iíve screwed up something and decided to go back. I loaded either the fail-safe settings or the optimized and disabled loadline calibration (it was enabled, but I have a 45nm e8400). I canít remember exactly. But after the reboot, NO VIDEO, system dead.

    Symptoms:

    • The same 2 long beeps as before, after that also a normal short POST beep. So exactly same beeps as before, when everything was working. All fans work fine.
    • NO VIDEO. My monitor does jump on, but stays on black.
    • No USB power.
    • Phase LEDS on mobo all on, but this doesnít mean anything.
    • System stays on, does not reboot. God knows what itís doing.
    • When hitting power switch for 1 sec system shuts down after 2-3 sec.


    At this point I googled my situation and did a clear CMOS by shorting the 2 pins. At first a few sec with batt on. No effect, exactly same symptoms.
    I thought maybe I destroyed my RAM, so I only used 1 of the 2 modules at a time and used different slots, still same. I also used 2 different RAM modules, still same.

    After that I removed the batt and short the 2 pins longer. Still same. In total I did more than 10 attempts of clearing CMOS, longest one by using a jumper and removing the battery overnight. Every time I removed the power cable and pushed the power button many times, but I might have forgotten it in one of the attempts. But the situation before and after cmos clearing is exactly the same, so I also donít have an idea if itís successful. But after disconnecting everything, removing battery and using jumper overnight, following exactly the instructions, I canít see how cmos NOT be cleared by now.

    Today I borrowed the pc of a friend to do more tests. I used another PSU, still same. I used different RAM, still same. I used different GPU, still same. So Iím sure it is the motherboard. ďdumbing downĒ the system with a vga cable and ps2 keyboard no effect. Everything else is disconnected.

    There is not power on USB, but when I use a PS2 keyboard I canít get it to do anything. Iíve tried entering the bios with hitting del, but it doesnít work. If even numlock and capslock donít work this might be pointless. And if nothing responds reflashing it (blind, without video) is also not an option.
    So I think my bios is destroyed, but Iím not 100% sure because it did work with the new biosÖ And my mobo doesnít have a dualbiosÖ And after 10 hours continuous work Iím desperateÖ Any help would be appreciated!

    Thank you!

  2. #2
    profJim's Avatar
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    Your motherboard does have dual bios chips, see the red box in the attached picture.
    You might be able to follow the steps in http://forums.tweaktown.com/gigabyte...ng-failed.html to boot from the backup bios chip.
    Extreme care is required when attempting this fix.
    I recommend removing the motherboard from the computer case when attempting to jumper the main bios chip.

    Can you try booting with a low end PCI video card?
    Have you disconnected all hardware that is not needed to boot into the bios?

    EP35-DS4 failed BIOS flash - dead system-ep35-ds4-v2-1-dual-bios-chips-jpg
    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
    .


  3. #3
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    It's a pleasant surprise to see that I do have dual bios. Thank you for this! Indeed 2 chips on my mobo. I followed the instructions you gave me by shorting pin 5 and 6 very carefully and powering up (it is easier to do then shorting pin 4 and 7 described in the first post in that thread). This gave me good news and bad news.

    The good news is that after a few attempts I got video!!! The first thing I did was go into the bios and load the optimized defaults and reboot. The bad news is that after doing so and rebooting I could not get video any more! Afterwards I was in exactly the same situating with exactly the same symptoms as before . I have been trying for 3 hours now to repeat this trick without any luck. I just don't understand it! I also cleared cmos again, but whatever I do, no video.

    The time that I did get to see video (after I jumped 2 meters in the air) I saw that cmos was cleared but that it loaded bios F7d. This can be the latest bios, or the bios version before that one. Because my last version was a modded version with exactly the same version number as the previous one: F7d. I also got the same 2 long beeps when it worked.

    Another thing: I noticed that I can enter bios when I unplug my video card! When I do so the long beeps are exactly the same, but afterwards I can get to bios and get it to load stuff. It is difficult because I can't see anything, but I know how to load failsafe or optimized settings, and this works. But it doesn't change the situation. When my video card is plugged in my keyboard doesn't respond to anything, even capslock and numlock don't work.

    All other hardware was disconnected this whole time. Only 1 ram module, PS2 keyboard and vga or dvi cable. I also tried again with a different video card. Both are medium end video cards, unfortunately I don't have a low end videocard to try.

    Anyhow, I just don't understand this whole situation!

  4. #4
    profJim's Avatar
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    See if you can get back into the bios by shorting the #5 and #6 pins.
    Go to the boot priority settings and set your floppy drive as the first boot device.
    This should let you perform a blind flash using a floppy disk if you want to replace the Main bios.
    Your initial goal right now is to be able to reliably boot and get into the bios.
    Your best bet might be to do a blind flash if needed or to enter Qflash and use the most recent un-modded bios to hopefully get a functional and stable system.

    Before you save settings and exit, go into Qflash and see if there is an option to copy the Backup bios to the Main bios.
    I don't know whether or not a lower end PCI video card will help.
    It might be worth a try if you can buy one at a low price.

    Another thought, try booting with a usb keyboard or a different PS/2 keyboard.
    Lsdme is our former guru and I would be inclined to follow his recommendations.
    If shorting pins #5 and #6 doesn't work, carefully try shorting pins #4 and #7.
    Last edited by profJim; 07-02-2013 at 06:21 AM. Reason: typo
    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
    .


  5. #5
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    If I can get into the bios and see video the best thing is to flash immediately with qflash right?

    But when I have to do it blind it's really a pain. I also don't have a floppy drive. But a bootable usb does exactly the same right. So what I could do is to change usb drive as the primary drive. Or maybe when there isn't any other drive it automatically has usb drive as the primary boot device? But for now the only way to get into the bios blind is by removing the videocard. Is it even possible to get to the point of loading something without a video card present?

    I keep on trying to get video...

  6. #6
    profJim's Avatar
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    I've never tried booting using a bootable usb flash drive but it might work automatically with no other connected drives.
    The bios file and the flashing utility would both need to be in the root directory for a blind flash to work.
    An AUTOEXEC.bat file would need a single line of code with the correct command line parameters that will suppress ALL user prompts.
    You will need to do a web search for the correct parameters for AWDFLASH.
    If you need more detailed help with the command line parameters, send a PM to NoJuan999 and ask him to reply in this thread.
    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
    .


  7. #7
    profJim's Avatar
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    Pages 68 - 70 in your motherboard user manual describe using Qflash.
    It looks like a usb flash drive can be used.
    It is recommend to set Keep DMI Data to Disable and I think that the right arrow key will change the default Enable setting to Disable.
    The Qflash options are minimal with only one drive connected to the system.
    Make sure that your usb drive is formatted to FAT32 or FAT16 before you put the extracted bios file on the drive.

    With some luck, you might be able to use QFlash even if your video isn't working.
    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
    .


  8. #8
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    SUCCES !!!!!

    It cost my 2 full days but I managed to get my system running again. Thanks to this thread and the incredible amount of knowledge on this forum.

    The solution was pretty straightforward: With my video card connected I didn't got video and my keyboard wasnt responding. But when removing the video card the keyboard did respond. I made a bootable usb stick with flashspi.exe, autoexec.bat and the stable biosfile. autoexec.bat contained only the following: flashspi /c /e /r xxxxxxxx.xxx , xx being the biosfile. This I runned blind, and it worked!! I think I reflashed it 5 times, because I didn't want to shut down the pc in the middle of the flash procedure.

    But I didn't stop there. Because I still want to have my modded bios and I want to understand what went wrong in the first place. So I decided to qflash it to the modded bios. It worked. Then I went into bios and loaded the optimized defaults. And then I got the same problem, NO VIDEO. So now I know what caused this problem; loading the optimized defaults! My modded bios works just fine when not loading the optimized defaults. It does have 2 long beeps before post, but it works.

    So now my question is: why do you need to load optimized defaults after a bios flash, and how come in my case it's backwards?

  9. #9
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    Default Re: EP35-DS4 failed BIOS flash - dead system

    Glad to hear that you've been able to get your motherboard working!

    Loading Optimized bios defaults is the standard procedure before you reapply your bios settings.
    Despite its name, loading Fail Safe bios defaults often causes problems.
    Apparently your modded bios is not compatible with loading Optimized bios defaults.
    I don't have an explanation why this happens with your motherboard.
    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
    .


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