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I recently built this new PC but I notice most games are not running as well as I had hopped, Tribes, Skyrim, Saints Row the Third and Serious Sam 3 for example. Some have really bad FPS like 60-30, dipping frequently.

I notice my Motherboard has a lot of updates, I'm hoping this will help.

CPU: Intel Core i5 3570K 3.4GHz | GPU: Radeon HD 6950 | Mobo: Asus P8Z77-V LX | RAM: Corsair 8GB (2x4GB) DDR3 1600MHz

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Go to Asus official website and download the latest bios. http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z77V_LX/

Inside the file you will find the instructions on how to rename the file included. After renaming it you open up Asus Updater to flash the new Bios.

If you dont have Asus update you can get it here: http://support.asus.com/download.aspx?SLanguage=en-us&m=tools

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I got the BIOS. It has a PDF saying what to rename the file to, but no instructions? –  neilh Jun 29 '12 at 20:25
    
You need ASUS Updater.If you dont have it you can get it here: support.asus.com/download.aspx?SLanguage=en-us&m=tools –  Rhyuk Jun 29 '12 at 20:30
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Press F2 on boot to enter the BIOS. There should be a tab that says Advanced. From there select something like: Start Easy Flash. You should then be prompted to select the new bios file. After you select a file it will update your bios to the new version.

I have an ASUS motherboard myself.

I would recommend this method over using the Windows utility method because I have heard that it is safer and helps reduce the chance of something going wrong and bricking your mobo

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I've heard the exact opposite. The Windows utility does all the hard work (and can even download the latest BIOS), including verification before flashing and better fallback procedures if something goes wrong. I don't know how much verification the Easy Flash utility does, because I think you can flash a bad file. –  MBraedley Jun 29 '12 at 20:51
    
@MBraedley I could very well be wrong. Last time I checked it was for my old laptop Asus G73. People were saying not to use the windows utility. I didn't know it did verification. That might be a better option –  Brandon Kreisel Jun 29 '12 at 20:56
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I'd be surprised if updating the BIOS will improve your gaming performance, however to actually answer your question:

You can download the manual for this motherboard here:

http://dlcdnet.asus.com/pub/ASUS/mb/LGA1155/P8Z77-V/E7074_P8Z77-V.pdf

Section 3.10 deals explicitly with the differing ways in which to update the BIOS.

Section 3.10.1 mentions an Asus Update utility that will allow you to update the BIOS from within Windows and it seems fairly straightforward if it's your first time.

The manual advises that the utility comes on the DVD that came with your motherboard, however you can also download the utility (and the BIOS update itself) from here:

http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z77V/#download

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