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Community Manager
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DZ77RE-75K bios update kills the board?

On my perfectly working new system, I tried updating from the original BIOS version V0039 to V0053 using the widows updater. The machine rebooted to begin the update process, then just began a cycle of rebooting and rebooting and rebooting every 5 or 10 seconds or so.

Some other poster indicated that upgrading more than one bios version at a time may have been too much to do in one step, but I didn't read that note until after things went bad.

Now, the mobo appears not quite dead, but not working either. If I let it sit long enough after turning the power on, it shows 'd0' on the POST display, which is not listed in the POST status code sheet that came with the motherboard.

I have tried removing the BIOS jumper, removing the CMOS battery, putting a BIOS on a CD, putting a BIOS on a flash disk, basically, everything I could glean from this forum. Putting the recovery BIOS on USB or CD is weird that the machine never accesses either media. I never see any flashing lights on the CD drive or the USB stick.

If I pull out all the RAM as suggested from one thread, the machine gives me the '3 beep' indication that there is no RAM. So something is alive.

Am I doing something wrong with the recovery media? I format the USB stick clean (as FAT16 - I am using a 2G stick in case that matters), then put the .BIO file on it as the only file in the entire stick. But since the stick never gets accessed (no flashing light), it seems as though the recovery process never even tries to read it.

Any help would be appreciated!

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Community Manager
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Re: DZ77RE-75K bios update kills the board?

I tried again using BIOS version 0045 on a CD. This time, the CD worked. Why it didn't do anything the previous jillion tries with CD or USB is still a mystery.

Once the machine finally got V0045 BIOS installed, it went to boot windows 7. Unfortunately, Windows would not boot. It claimed to be damaged, and the windows repair mechanisms all failed to restore a bootable system. So now I get to reinstall windows.

This has to be the LAMEST bios update process ever created.

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Community Manager
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Re: DZ77RE-75K bios update kills the board?

One last comment: Once I got 0045 into the machine using the CD, using the BIOS's built-in F7 BIOS upgrade mechanism was easy and reliable. I upgraded from V45 --> V49 --> V53 by putting the .BIO files onto a USB stick.

I cannot recommend using the windows executable method. That was an unmitigated disaster.

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Community Manager
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Re: DZ77RE-75K bios update kills the board?

Double check the compatability chart for your board and memory. iirc if you have a boot loop - then remove memory causing missing memory beeps - this means the memory is not compatable. Maybe also pare down to just a single dimm.

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Community Manager
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Re: DZ77RE-75K bios update kills the board?

The RAM memory was/is fine. The point of trying to boot with the RAM removed was to make sure that the board was alive enough to give me a "missing memory" beep.

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