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No signal on monitor one long beep 2 short beeps cant get into bios

Last response: in Motherboards
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January 17, 2014 9:39:09 PM

Just like the title says i recently got a new power supply and everything starts up fine except for this beeping and when it isnt beeping nothing shows up on the monitor anyway. I also tried everything on the No post/boot checklist thing. the motherboard i have is an asus M5A78L-MLX Plus. I've tried reseating the ram reseating the cpu tried the onboard video and two different graphics cards. I know the graphics cards are good because they work in another machine in my house.
What am i not doing here?
a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 17, 2014 10:02:24 PM

Check if all connection secure(no loose connection). Trying booting with just one ram stick and also if that doesnt work, change slot of ram like if you are using A1 and B1 try to use just A2 slot first with onestick.
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a b U Graphics card
a b C Monitor
a c 559 V Motherboard
January 17, 2014 10:03:16 PM

It signals a memory issue. What RAMs using? Can you test different stick (borrow one).
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January 17, 2014 10:05:33 PM

the ram works fine ive tested it in another machine.
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a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 17, 2014 10:18:57 PM

PhantaSee said:
the ram works fine ive tested it in another machine.


Check in different ram slots of your motherboard.
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January 17, 2014 10:24:22 PM

i only have 2 ram slots.
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a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 17, 2014 10:30:08 PM

PhantaSee said:
i only have 2 ram slots.


How many sticks of ram you got? 1 or 2?
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a b U Graphics card
a b C Monitor
a c 559 V Motherboard
January 17, 2014 10:30:47 PM

Why did you install different power supply (for fixing some issues)? If putting back the old one, same beeps?
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January 17, 2014 10:37:55 PM

the old power supply was kaput. and i have 2 ram sticks.
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a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 17, 2014 10:43:06 PM

PhantaSee said:
the old power supply was kaput. and i have 2 ram sticks.


use 1 stick at one time. Check if it works.
if no, insert 2nd stick in same slot after removing 1st stick. If still doesn't work?
Do same thing one by one in next slot. Tell us what happen?
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January 17, 2014 10:50:42 PM

still having beeps.
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a b U Graphics card
a b C Monitor
a c 559 V Motherboard
January 17, 2014 10:58:45 PM

Have you tried clearing the CMOS?
The PSU might not be the only defective component. Try borrowing a RAM or test the PC at a local shop.
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a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 17, 2014 10:59:11 PM

PhantaSee said:
still having beeps.


install you ram sticks, its time to check your graphics card. Try to reboot without gpu. I thinks its your psu demanding more power. Just check it.
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January 17, 2014 11:04:13 PM

tried booting without gpu same error. tried installing both ram sticks same error. tried clearing cmos same error.
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a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 17, 2014 11:44:43 PM

I am afraid, if its your motherboard faulty or psu maybe. Just get a decent psu or the old one you have, check if you can boot without gpu inserted in mobo.
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January 17, 2014 11:47:20 PM

the old psu doesnt work at all. so im leaning towards the mobo. but when i put the cmos jumpers on 2-3 instead of 1-2 i dont get the beeps anymore.
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Best solution

a b U Graphics card
a b C Monitor
a c 96 V Motherboard
January 18, 2014 12:09:05 AM

PhantaSee said:
the old psu doesnt work at all. so im leaning towards the mobo. but when i put the cmos jumpers on 2-3 instead of 1-2 i dont get the beeps anymore.


Memory issue: Beep (1 long 2 short)

A Clean the Golden Finger of memory

B Clean the memory slots

C Leave only one memory stick to test

D If convenient, please change different memory to test again

For more reference check out this website under troubleshooting section:
http://support.asus.com/knowledge.aspx?SLanguage=en&p=1...
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a b U Graphics card
a b C Monitor
a c 559 V Motherboard
January 18, 2014 12:18:22 AM

I'd RMA both motherboard and CPU.
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