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August 3, 2010 3:16:19 PM

hi guys i recently tried overclocking my system (ram mainly) and the pc restarted with bad bios checksum corrupt bios so i put the motherboard disk in to reflash the bios as stated in the manual and all seemed to go ok through the process however when the computer restarted there was not a post beep and nothingcomes on the screen however the disk draw activity light comes on i have been reading about the problem on the internet and they say ineed a floppy drive with the bios file on a floppy disk however i do notown a floppy drive so is there another way of getting my biosworking again
any help appriciated thanks
chris

oh my pc specs are
b50 3 cores unlocked at 3.1
mobo is a asus m4a78-e
4gb patriot memory 800mhz
1 dvd rom draw
500gb western didgital hdd
asus 5770 gfx card

More about : screen post

August 3, 2010 3:20:42 PM

just to clarify when i start the machine the fans spin and the disk draw light comes on but it does not post beep
a b Ĉ ASUS
a b V Motherboard
August 4, 2010 12:58:18 PM

Clear CMOS with the jumper or remove the battery for 10 minutes. This may help.

If it does not help, then download a recent version of the BIOS. Use Asus Crash Free BIOS if your motherboard supports it. Please read motherboard manual for further instructions.
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August 4, 2010 3:30:53 PM

hi thanks for the reply, i have tried re-setting the cmos and it has not worked as for
crash free bios my motherboard does support it (my board supports crash free bios 3) however i am unfamilliar with crash free bios could you go into moredetail as nothing is stated about it in the manual
thanks chris
a b Ĉ ASUS
a b V Motherboard
August 5, 2010 6:59:10 AM

batch16 said:
hi thanks for the reply, i have tried re-setting the cmos and it has not worked as for
crash free bios my motherboard does support it (my board supports crash free bios 3) however i am unfamilliar with crash free bios could you go into moredetail as nothing is stated about it in the manual
thanks chris



Do it like this: Put the motherboard support CD into the DVD tray and restart your PC or put the latest BIOS file on to the USB flash drive. The BIOS file must be unzipped after it is downloaded from Asus and put on the root of the USB drive, such as X:\Asusbios.bin (where X: is assumed to be your USB flash drive).
August 5, 2010 8:51:24 AM

ok thanks
ill give it a try and get back to you if it works
a b Ĉ ASUS
a b V Motherboard
August 5, 2010 9:47:17 AM

batch16 said:
ok thanks
ill give it a try and get back to you if it works


Sorry I should add, First read the documentation that came with your motherboard or download one from Asus because different motherboards may have different procedures. Crash Free BIOS 3 will read the BIOS file, upon insertion, either from the CD-ROM or from USB flash drive itself depending on your choice. You should not touch anything or press the DEL key to enter BIOS. This is not a normal BIOS flash procedure.

The latest BIOS file for your motherboard is v. 2507 dated 04 June 2010.
August 5, 2010 1:20:37 PM

hi suat
thanks for the reply i just want to know what you mean by The BIOS file must be unzipped after it is downloaded from Asus and put on the root of the USB drive, such as X:\Asusbios.bin (where X: is assumed to be your USB flash drive). i have a usb drive and have put the bios file onto it but i do not know what you been by making it the root file could you explain
thanks for the help
chris
a b Ĉ ASUS
a b V Motherboard
August 5, 2010 1:53:36 PM

batch16 said:
hi suat
thanks for the reply i just want to know what you mean by The BIOS file must be unzipped after it is downloaded from Asus and put on the root of the USB drive, such as X:\Asusbios.bin (where X: is assumed to be your USB flash drive). i have a usb drive and have put the bios file onto it but i do not know what you been by making it the root file could you explain
thanks for the help
chris


When you download the new BIOS file from Asus, the file is zipped. It means the file has .zip extension. You must click/double-click this file in Win 7, Vista or XP. A folder opens. The file in this folder should have the .ROM extension. Just copy this file with .ROM extension on to an USB flash drive.

When your PC is off, insert the USB flash drive into one of the USB port and turn on your PC. That is it. Asus Crash Free 3 should take care of BIOS rescue job if your problem is just BIOS corruption.

Alternatively, if you have motherboard support DVD, turn on your PC and insert the support DVD into the DVD drive tray and close it. Then wait for Crash Free 3 to do its job. But the BIOS file on the DVD should be very old. You later update BIOS in the normal way.

Please note: The USB flash drive you will copy .ROM file on should have FAT32 file system.
August 5, 2010 2:13:27 PM

ok m8
ill format the memory stick in fat 32 then i will try
a b Ĉ ASUS
a b V Motherboard
August 5, 2010 2:19:40 PM

batch16 said:
ok m8
ill format the memory stick in fat 32 then i will try


No need if it is not NTFS. Almost all USB flash drives come with FAT file system.

Even recent BIOSs can read NTFS. My Asus P7P55D can read NTFS after recent BIOS updates.
August 5, 2010 2:42:27 PM

First, take out the battery of your mobo, unplug your computer, then press power to relieve any power left in the psu caps. then put the battery and everything else back in to its respective place. This is known as a hard cmos clear. IT works most of the time.
August 5, 2010 2:47:57 PM

ok i have plugged the usb stick with the bios on and nothing is happening no post beep still should i press a certian key to start the process? or is my motherboard broken
August 5, 2010 2:49:10 PM

^try my method its allot less complicated and it'll work (most likely)!
August 5, 2010 2:50:04 PM

Also when you do manage to get it up and running again. Make sure you set up the time and date in the bios. Otherwise you may have to repeat...
August 5, 2010 2:54:50 PM

hi ive tried that but still no post should you leave it for any length of time?
August 5, 2010 2:55:46 PM

did you make sure that you pressed the power button in the front before you plugged in everything?
August 5, 2010 3:04:41 PM

yep thanks anyways for the help
August 5, 2010 3:09:09 PM

will the bios flash from the motherboard disk if it is a dvd and not a cd ? as i have also tried putting the bios file on a blank 4.7gb dvd disk aswell as using the driver dvd
August 5, 2010 3:21:30 PM

Remove all ram except one stick.
August 5, 2010 3:25:43 PM

ok
a b Ĉ ASUS
a b V Motherboard
August 5, 2010 3:30:46 PM

batch16 said:
ok i have plugged the usb stick with the bios on and nothing is happening no post beep still should i press a certian key to start the process? or is my motherboard broken


Did you insert the USB stick when PS was off and restart ?
August 5, 2010 3:37:43 PM

yep
August 5, 2010 7:45:57 PM

if anyone has any more ideas your help will be much appriciated
August 5, 2010 7:47:46 PM

Lock up your unlocked core?
August 5, 2010 8:06:46 PM

i cant even get into bios
August 6, 2010 4:54:39 PM

can anyone help?????????????
a b Ĉ ASUS
a b V Motherboard
August 9, 2010 7:00:00 AM

Does your motherboard light shine ? Can you see it ? If not, remove the side cover and then look at it. Make sure the computer's PSU is connected to the wall socket.

You can also connect your monitor to the onboard VGA output. Be sure to make changes on the motherboard to allow you to use onboard graphics.

If you have display on the monitor, then you revert the changes back to use the separate graphics card HD5770.
February 28, 2011 12:31:51 PM

I have the same mobo M4N78PRO and a similar problem. black screen no post beep no Bios.
Just bought a new case for it and all the fans run including the one on my graphic card (8800GTS) and my CPU fan too.
On my previous case i had to hold down the reset button for 30 seconds from my Graphics card to stop making noise and start the Bios. Same here but i do not know if the reset button is operating properly. The light on the Mobo is on and active.
I have upgraded my PSU too from 580W to modular 700W.
The rest of the set up is the same AMD 6000+ 3.2 GHZ and 4GB DDR2 ram.
The on board will do the same black screen no post beep or joy.
Running out of options.
!