Question about ASUS P4S800 Motherboard

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Bios I installed a beta version of the bios. Things are not working properly so I'm trying to go back to an older version, but it want let me do that. It says that the bios i'm trying to install is not correct for this motherboard. I downloaded the bios from asus for this board. Board is ASUS P4S800 bios version I'm trying to instal 1.09 Beta Bios currently installed 1.11?

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Re: Bios

Actually u know what beta means? its acutally in testing mode they r still testing n finding the errors they made so when they find all erors n fix then they launch a full version of it so never download a softwares update of such sensitive stuff which r beta version always wait for the full version to arive

Posted on Nov 18, 2007

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Four bios versions which do I flash?

Gigabyte GA-Z77X-UD5H

F15q and F15o are BETA versions.
Meaning in actuality, they use the consumer as a guinea pig, and see what the results are. Then they might 'tweak it', and call it good.
Becomes an Alpha version then.

['Tweak it'.
Work the bugs out that have been found by the consumer]

My bad. Let me use the 'prose' they use,

"What is BETA?
BETA describes a new version that is reliable yet may not include all the features of the final product. During this phase we are previewing new features and gathering customer input to insure our product provides the best experience possible."

Moving on....

Next, the logical thought is; to download the Latest version.
The thinking is that the latest version has all the bugs worked out.

However this may be a fallacy for your particular motherboard.
The latest version may not work.
Makes you feel all warm, and fuzzy inside, huh? (NOT)

The procedure to use when updating BIOS, and using any version; is to make sure you keep a copy of the old one.
When upgrading, you will be asked if you wish to make a copy, of the old BIOS program.

YES, is the answer.

Something happens with the new version, you have the old version to revert back to; and at least be able to use your motherboard.
No BIOS? Might as well use the mobo for a Frisbee.

So,......looking at the different versions that you see, look at each one's date.

F5 is 03/28/2012. March 28, 2012
Indicates Enhanced overclocking capability.

What does F6 do, that came out April 26, 2012?
1) Improved Processor overclocking, using a processor based on the Sandy Bridge Core,

2) Brings support for using an Intel Xeon processor.

Now look at the next version, F7.

All the improvements you see listed for each version, are culminated in the newest version,


That is, the newest version that has proved to be stable.
Supposedly the 'bugs' are worked out.

The other two versions F15o and F15q, again; are BETA versions.
Should ONLY be used by those who have a lot of experience, and know what to do if it fails.

So this leaves us with F14.
HOWEVER again, make SURE you make a copy of the old BIOS version.
When updating you will be asked.


(ALSO, if your power goes out in the middle of a BIOS update, kiss the motherboard goodbye; unless you made a copy of the existing BIOS version.

This is why I, and others state; that unless there is a definite reason to upgrade the BIOS program on your computer -> DON'T)

Mar 17, 2013 | Gigabyte Motherboards

1 Answer


how old is your old motherboard i its 5 - 6 yrs or older it might not support windows 7 and needs minimum of 2 gb of ram installed to support winows 7
hope this helpsyou

Sep 26, 2011 | EliteGroup P4M900T-M (V1.0) Motherboard

1 Answer

ASUS K8V-MX Motherboard recognizing 320 GB SATA harddisk. Why?

It could be that your BIOS needs updating for this motherboard. Take note of your BIOS version when your computing is booting. Try hitting the Pause key to freexe the screen, but if no luck go into BIOS and see if the BIOS version is listed. You typically get in BIOS by hitting the "Delete' key on your keyboard when the computer starts up and the first bunch of words appear in white characters (might be a light grey)
Go here:
Latest BIOS (note its a beta version ie not formally released) is
K8V-MX Beta BIOS 0501
Latest beta BIOS.

Feb 17, 2010 | ASUS K8V-MX Motherboard

2 Answers

How to install XP over Vista (BIOS can't disable SATA native mode)

make new xp with nlite software and inbuilt achi and ICH9 driver. then try to install xp.

Nov 05, 2008 | Intel Gigabyte GA-8IDX 845 AGPset P4...

1 Answer

Bios update problems P4S800-MX

An .exe file isn't a .rom file. You downloaded the flash program (the program used to flash new data to the ROM), you didn't download the flash data. Look on the site again, or look to see if there's another file - P4S800MX.ROM - to extract.

Sep 10, 2008 | ASUS P4S800-MX Motherboard

6 Answers

SATA drive not detected in BIOS and windows does not boot up

i have same problem with WD 250GB sata HDD. with same bord K8V-MX,  i all reday update BIOS with 0502 version.

plz plz plz help me.
CC me

Feb 21, 2008 | ASUS K8V-MX Motherboard

1 Answer


I have seen this issue before.... When you update the bios you need to reset the BIOS settings otherwise it is using an invalid set of options, you need to enter BIOS and load Defaults, (usually by pressing f9) hopefully after that your system should load properly...

Nov 05, 2007 | Abit KN8 Ultra Motherboard

1 Answer

CMOS battery drains after one startup. Gigabyte GA-K8N-SLI

OK lets see here! Make sure your CMOS jumper is set properly on the board(Set to Normal) or Did you configure your bios after flashing the bios(going into bios and Load Optimized Defaults!)? or I don't think it would be another device in the system, but you can try troubleshooting by starting up with only what you need to run the machine (Mobo, memory harddrive, keyboard and mouse) then one by one adding devices back! or Did you have problems like this b4 you flashed the bios! Try flashing the bios back to an older version! post back if anything new or if i'm way off! Good Luck regards, babb

May 03, 2007 | Gigabyte K8N-SLI (GAK8NSLI) Motherboard

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