I have purchased this motherboard 6 months ago After assembly the system worked good .When I purchased the motherboard the BIOS version was 0705 after 4 days I updated bios to Version 1102 the PC worked well for two days after BIOS update. third day I worked on that PC for 3Hrs & shut down it after use. On same day at night I started PC for the work The PC started with black screen. All fans LED's were running but there was no screen.
I checked everything I cleared CMOS ,replaced Graphics card with same Graphics card from old system yet there was no change .At last I started PC without RAM so that it will give the error beep but it gave no beep. So what is the problem Is there problem in BIOS chip Bios chip upgrade will help? Good EVENING ranko and welcome to CH

I hope this will help you it is possible that the BIOS falsh may have failed even knowing it was a couple of day later. Here try this link http://support.asus.com/Troubleshooting/detail.aspx?SLanguage=en&p=1&m=SABERTOOTH%20990FX&s=24&hashedid=H9GanpgqHG8yN8yQ&os=&no=1722

Please let us know how you make out, Mike Quote from: hartbeatmr on August 30, 2012, 08:35:38 PM

Good evening ranko and welcome to CH

I hope this will help you it is possible that the BIOS falsh may have failed even knowing it was a couple of day later. Here try this link http://support.asus.com/Troubleshooting/detail.aspx?SLanguage=en&p=1&m=SABERTOOTH%20990FX&s=24&hashedid=H9GanpgqHG8yN8yQ&os=&no=1722

Please let us know how you make out, Mike

Good evening rakno and welcome back

Well I am sorry the info from Asus didn't help. Now you said that tried a different video card and still no change / boot.

But on the MoBo are you getting all 4 led's (power / CPU / Memory / Video card) not the case lights the led's right on the MoBo.
Also after you updated the BIOS did you make any other changes like over clocking either CPU or memory? just like page 2-20

Are you sure that you put the CMOS jumper back to pin 1 and 2 after you cleared it? I am assuming so because you ran the PC for a couple of days. But can't hurt to check.

Because when you removed the memory you should have gotten beeps but when you don't that is not good. That ends up being a corrupt / defective CMOS.

Hope this helps, Mike

Good evening again rakno

Sorry I am not trying to be a jerk but you missed the one question that I posted.

"But on the MoBo are you getting all 4 led's (power / CPU / Memory / Video card) not the case lights the led's right on the MoBo.
just like page 2-20"

I know that you are using all the parts you would think that this point is is stupid but I am trying to figure something out for you. Because if you got no beeps with the memory out but you currently using the parts (So obvious the parts work still) if you missing any lights / leds that would say where it is not booting thru & passed thru that piece of hardware.

The problem as you know you have to be able to see something on the display to recover the bios.

When you used the jumper to clear the CMOS did you take the battery out for a couple of minutes???

Also when you used a different video card to test did you plug in the power (molex) connecter to it.

Hope to hear from you soon,, Mike


Thanks Mike again After clearing the CMOS (i.e. after putting jumper to 12 Position) then I booted PC to check whether the PC is working OR not .When I found that Problem is not solved as stated in the motherboard manual last step I followed i.e. I removed the CMOS battery & placed it again but that was also useless .And about the graphics card I was using ATI Radion 6450 2GB DDR3 graphics card manufactured by the Sapphire. that do not require the additional power it takes power from the PCIe X16 slot So there is no requirement additional power for that Graphics card & I am still using Card