try this site
http://support.asus.com/pcassistant/pdf/BeepTable_en-us.pdf
if you can't read PDF then...
If your scren (monitor) stays blank with nothing displayed, please kindly folow the folowing bep codes sugestions: with relative
Warning
Beep: Reason: Suggestion:
One long, two short:
Cannot detect any RAM installed
Please try the following suggestions in turns to resolve this issue:
1. Try re-installing the RAM module.
2. Try installing the RAM module onto other DIMM slots.
3. Clean the golden finger on the RAM module with white eraser, and
clean the memory slot with soft brash, then install the memory back
onto the slot.
4. Please replace your memory module
One short VGA card test OK No actions required.
One long, three short:
Cannot detect any VGA card or VGA card test fail
Please try the following suggestions in turns to resolve this issue:
1. Try re-installing the VGA card.
2. Try installing the VGA card onto other DIMM slots.
3. Clean the golden finger on the VGA card with white eraser, and clean the expansion slot with soft brash, then install the VGA card back onto the slot.
4. Please replace your VGA card
:capables of displaying POST mesage on the screen, please kindly follow the folowing beep codes
Warning
Beep: Reason: Suggestion:
One short: Cannot detect keyboard.
Please try the following suggestions in turns to resolve this issue:
1. Try re-connect the keyboard after shutted down your system.
2. Try replacing your keyboard.
Two short: Hard disk test failed (S.M.A.R.T. test failed, or cannot detect hard disk.)
Please try the following suggestions in turns to resolve this issue:
1. Try replacing your IDE/SATA cable connected to your hard disk.
2. Try replacing your hard disk.
Four short:
Hardware monitor detects error (abnormal temperature, voltage, fan speed)
One short: All other errors found at POST stage.
Please refer to error message on the screen to locate the cause of this fault, and correct it accordingly.