Flashing BIOS on GA-P55M-UD2

[ER800]

Hi Tony!

Firts of all thank-you for you fantastic guide and wish that the forum "Live long and Prosper"

So here is my question:
I installed Snow Leopard with your guide:
(Install OS X Snow Leopard Directly from Retail DVD Using Chameleon Boot CD for P55 Motherboards)

But I did not flash my bios (was a little bit scared :?)

So I am still running under version F4.

Should I update to F5? Will there be some perks?

ER800
CORE i5 - 10.6.2 - VANILLA - SNOW LEOPARD RETAIL - GA-P55M-UD2 - GEFORCE 9400 GT

 

[auntyjamima]

I was in the same boat as you a while ago and I thought I wouldn't bother flashing but then I started having USB problems. You might want to flash but then again whatever works.

 

[Benski]

I have a GA-P55M-UD2 rev 1 running F6 bios firmware. I get occasional kernal panics. Does everyone else w/ a GA-P55-UD2 get occasional kernel panics, or should I change my bios firmware? I think rev. 1 boards support F6, but maybe it's only 1.1 that supports F6... any suggestions?

 

[auntyjamima]

F6 is only for the rev 1.1 boards. Unless you have 1.1, I would recommend switching to F5. It has been working great for me.

 

[gregord]

only 1.1 boards support F6 according to:

http://www.gigabyte.us/Support/Motherbo ... uctID=3299

I would think it would not let you flash though. Perhaps it means that only Support EuP Lot 6 function is supported on 1.1.

 

[tonymacx86]

I'm on version F5 as well. My board is 1.0.

 

[Wingus]

Is there a way to distinguish Rev 1.0 board from Rev 1.1 boards, aside from looking at the markings on the board?

I noticed my UD2 has an ALC887 sound controller instead of an ALC888b. I wonder if that means I have a rev 1.1?

 

[Benski]

You can look on the motherboard, lower left corner it should say 1.0 or 1.1. Look on page 3-5 of your owners manual, it tells you exactly where to look. I'm going to flash down to F5 and see if that helps me.

Tony and others with a ud2 board - do you get kernel panics periodically or are you 100% stable?

 

[sakasune]

I have been getting somewhat random kernel panics too. I flashed the BIOS about a month ago, I think to F5. Not sure if I have a 1.0 or 1.1 board, I can check when I get home.

Most of my KPs seem related to USB - at first it seemed related to mouse clicks (open a DMG from a stack, clicking a button in an app, etc). Lately it's either when I plug in or eject a USB drive (flash or enclosure) and when I hit the tab key on a form in Firefox - I think it's only when tabbing from username to password, I can't remember it happening on any other form (it also KP'd once when I clicked in the password field instead of tabbing).

Performing the same action immediately after a reboot doesn't cause a KP, it almost seems to be after the machine has been on a few hours (counting time while sleeping too). I'm using tony's DSDT with the SpeedStep enabled - I have been thinking of trying a different one. Tony said he heard of the USB ports near the PS/2 ports causing people issues, but I've tried almost all of them with no difference.

My hardware is what tony mentioned in one of his guides - Core i5 CPU, UD2 board, GSkill RAM, and the Sparkle nVidia GeForce 9400 GT card. I accidentally bought an IDE optical drive (darn last minute special).

 

[thelostswede]

Gigabyte's Windows based BIOS flash utility will tell you which board version you have, but you have to select update BIOS from Gigabyte server first and then select a server and press ok before it'll show up (stupid, yes I know).