The Master Technology Category

Downgrade from F4 BIOS on Gigabyte ga-x79s-up5-wifi


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If you upgrade to the F4 BIOS and you experience problems, Gigabyte makes it really tough to downgrade to your old BIOS.  Make sure whenever you upgrade a BIOS to save the previous version just in case you have issues.   Gigabyte even says on their BIOS download page:

Because BIOS flashing is potentially risky, if you do not encounter problems using the current version of BIOS, it is recommended that you not flash the BIOS. To flash the BIOS, do it with caution. Inadequate BIOS flashing may result in system malfunction.

With that information feel free to upgrade but know it might not work.

To downgrade back to your old BIOS you can use the tool.  It allows you to install a BIOS without using Gigabyte’s tool.  You can download it here: FTK_0.9.6.1_DOS.  First you need the HP USB Disk Storage Format Tool to create a bootable file from a USB drive.  You can find the HP tool here: SP27608.  Next grab the Win98SE_bootdisk.iso. You can find the Win98SE_bootdisk.iso here: Win98SE_bootdisk.  extract the iso using something like winrar to a directory and use it with the HP tool to create a bootable win 98 usb stick.  next but the extracted FTK files and the older f3 BIOS on the stick.  Insert the usb stick into your computer and boot it up.  Hit F12 to get to the boot menu and select the USB stick.  Once that’s selected you will boot into win 98 DOS environment.  From there, CD to the directory of your F3 BIOS, you can find my copy here: 10.13.2013.f3.bios.

Now run: fpt -bios -f biosname.bin

After a few minutes it will say completed!  now power off your system and reset the CMOS.  You do this by either removing the batter from the motherboard for five minutes or using the jumper on the motherboard. see page 27 of the manual.  ”Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and reset the CMOS values to factory defaults. To clear the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.”

Finally once you reboot you should be back to the F3 bios.


Here’s a great resource for all your BIOS needs:


Hope that helps!

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How to Assign An Elastic IP To an EC2 Instance On AWS


An elastic IP is a static IP address that is used with EC2 instances.  Instead of getting a public DNS name like which changes every time you restart the instance, you can assign your EC2 instance an elastic IP and it will never change unless you direct it to. Elastic IPs work in the following way:


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In the AWS Console you go to EC2:

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Then navigate to Network And Security and select Elastic IPs:

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You then have to Allocate an IP to your account by hitting “Allocate New Address”

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This brings up the following dialogue box where you assign the elastic IP to either standard EC2 or to your VPC depending on you use case:


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Once the IP is assigned to your account you have the ability to “Associate Address” or “Disassociate Address” with an instance,  you also have the ability to “Release Address” if you are no longer using it.

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In our case we want to associate the address so we click the corresponding button and have the option to choose which instance it will be attached to.

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Finally the IP is associated with our instance and can be accessed through the IP address.  It is a good idea to release elastic IPs when not in use because you are charged when they are assigned to your account.

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