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it sounds like the cmos batt had the same problem with my desk top once changed cmos batt all was fine .the batt is located on the under side of the laptop you will see some removeable panels just check under these,but be carefull the batt might be soldered in, some are some are not. if soldered in you might want to get a professional to change it as the heat could damage your computer. hope this helps.
Try this remove the main battery and mains power supply, hit the power switch to drain any retained charge. then remove the cmos battery. The cmos battery is on the right under the
panel at the top of the keyboard, which can be popped out by gently
levering it up at the edges. the key board can then be folded clear,
watch for the ribbon cable under it that connects to the motherboard.no other way i know of. You might want to check this location first get to the cmos battery via the
removable panel on the bottom right front of the case (other side from
the battery). first remove the main battery. next remove the panel,
under it you will see a modem card, remove the modem card and you
should see the cmos battery to the right side its loke a big watch
battery. there will be a connector on the wires going to the battery.
remove this to disconnect it. now just push the start button with the
machine un plugged, just to discharge any residual power. wait a couple
of minutes then reconnect the cmos battery then the modem card, then
the main battery. plug it in and start it up. the screen will come up
with something like "cmos bad checksum, defaults loaded" do not worry
this is normal. if it doesn't start normally, switch it off by holding
the on button down until it goes off then restart. it should be fine
after that, password gone. you can then get into your bios and set it up to your liking. I recommend not putting in a password. Let me know if this works for you. JimmyC
you need to change your cmos cell on motherbord circuit for that open back side cover and then you can see cmos cell on motherbord circuit.Change it pur chase new cmos cell. Your old cmos cell has not enough waltage so your bios settings are not saved when you turn off the power.
The sounds are a distorted post code (Power On Self Test). They may be the same pattern as the blinking lights on some laptops. A post code will tell you what the problem is. In this case it will be RAM or CPU or a motherboard error. If it ran hot just before it started doing this then it is most likely cpu. If it ran slow or jerky then may have been ram going out. You should probably expect to need to replace any of those parts unfortunately.
You can try to re-seat the ram or change its slot that is something you can try at home. Changing out the cpu require the laptop come right apart and unless it is new probably not worth doing unless you can do it yourself.
First you need to take the cover off your laptop and locate the cmos battery which looks like an oversize battery watch. With everything unplugged it just pulls out, note which side of the battery goes however. Place the new one in put everything back together and power the computer up. When it powers up it will finally get to the screen that says press "F1" for setup or "F2" to continue. Press F1 and you will get to your set up screen. You can go through each screen and select F5 which is the default factory settings or scoll across the top to the last screen which will give you the option of resetting all the settings to factory default with just pressing one of the F keys once only. Once you do that, just shutdown your computer and restart and it will start as normal. It may go through the F1 and F2 screen one more time but just press F2 and continue. After you log off the next time all your changes should be good. Let me know if I can help you in any other way.
so you need to replace rtc to remove password or reset bios yeah...
send me your email and I'll give you link to download iso for bootdisk program to do just that..
you download software (I provide) unpack it (winrar) and write to cd,then use the cd to remove passwords and rest bios and a whole lot more