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Before the boot strap two beep, first short and second long. The led near the battery ( 3v- 2032 lithium) pulse, after the very slow peripheral data screen, when the primary hard disk init the boot, all reset.
motherboard AOPEN AX4SPE-UN.
THANK IN ADVANCE
Max
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Cmos battery is usually a 3 V button battery, there are variety of different brands so you need to open and check it.
eBay: ACER ASPIRE 7741G 334G50 MS2309 CMOS BATTERY - 476 http://www.ebay.com.au/itm/ACER-ASPIRE-7741G-334G50-MS2309-CMOS-BATTERY-476-/161408573087?pt=AU_Components&hash=item2594b35e9f&_uhb=1
2035, 2032 can be bought from any super market or hardware store. Need to open the PC, locate the battery, which is normally clipped to the mother board. Use a small screw driver and lift out. If battery is soldered to the mother board then need to access under the board and de-solder carefully without damaging the tracks.
remove the RTC (Lithium CR 2032) battery from the motherboard and to leave it out for 10 to 15 minutes. Re-install the battery. Re-start the computer. Turn the computer OFF, unplug the computer, wear an anti-static wrist strap and ground yourself before you attempt this.
Continuous long beeps-RAM error 2 short beeps- BIOS error 1 long and 8 short beeps- Display Card error 1 long beep after few seconds 2 short beeps-FDC error 1 long beep after few seconds 1 short beeps-FDC is Ok 1 long beep and 2 short beeps-Display Card Error
Most probable cause is Ram memory, please try removing modules and reinserting, also try using alternately just one of them to determine which one is defective.
Check CMOS battery(Coin shaped battery), it should show 2.5-3V, if not then replace and check, you can even try and test the mbd without the CMOS battery. Some mbd does not boot with a faulty CMOS battery.
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