Question about EliteGroup SiS755 (755-A2 V1.0) Motherboard

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POST-Beep-Code List availible for Phoenix-BIOS? ECS 755-A2

I cleaned my Power-supply from dust by vac. Rebuilt it in the case, pluged in all conections, and after turning power on i got one single long beep followed by the same after a few seconds. What the hell does it mean?
(ECS 755-A2, Phoenix-BIOS, AMD3000+, 2x 512MB DDR-II RAM (PC1600) , ATI Radeon 256MB)
Where could I get a complete POST Beep-Code list for different Bios- manufacturer (e.g. AWARD, Phoenix), or are they the same?

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  • Tony May 11, 2010

    Try re-seating every thing.
    Phoenix bios emit morse code like beeps.
    Ie 1-1-2-1
    It could be that the board has been damaged during rebuild. They are quite fragile.



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The problem is with your RAM. Try installing the RAM in another slot. Install your AGP card slowly. I can assure about your motherboard yet you have no problem without assembling. Keep informing.

Posted on Feb 22, 2009


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1 Answer

Mother board powers up when power supply is turned on Does nothing

try your cmos battery make sure it has dust free connection and is securely seated and has plenty of charge
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There is definitely a power supply problem with the Dell XPS 200 I have. It starts fine and runs beautifully for about an hour. Then suddenly the screen goes blank, the light on the power button flashes...

First ingeneers build things to fuction AS IS, so i'm not sure you need more fan power.

Verify the inside of the computer is the CPU heat sink (big aluminium block with fan) CLEAN of any dust? are all the fans turning correctly (resonable speed)? verify the placement of the PC itself is it cooked up in a cabinet or pushed against a wall (blocking the holes in the case for air intake)?

if all of the above is OK you could re-paste the CPU (spreading new heat sink compound between the CPU and the heat sink)

Good luck!

Dec 31, 2010 | Dell XPS 200 PC Desktop

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When I turn all it does is beep have a steady red light on. Tryed unpluging everything and pluging back in no difference.

Your issue sounds as though it is the power supply that is in need of replacement.
If there is a steady red light on then the PC unit is not getting it -12/+12/-5/+5 voltage at the connectors also you may have inadvertently switched the cable connections that is pin 1 of the cables is not getting the voltage it needs to the device.
The red line on the cable or the (+) is the supply pin to that device.
1. check the power supply and all the connectors.
2. clean all dust from the inside of the the connector and around the CPU
3.check the CMOS battery (looks like a new quarter) should show 3.7 volts with a volt meter. If readings are below this you need replacement.
I hope this helps. Have a great day!

Oct 05, 2010 | Matsonic MS8137C Motherboard

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My cpu overheats

clean the cpu cooler slots and replace the thermal compound on the cpu ....make sure you clean off the old thermal compound .....only a thin layer of new thermal C will do all most see through ... hope this helps my friend

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I have a power supply that is turning itself off immediately after switching it on it is a new motherboard as well Any ideas why ?

I think either the MB or the CPU is with problems.

Try (2 after 1 works, 3 after 2 works...):
1) only PSU+MB+CPU and Fan - works? beeps like crazy?
2) add memory - works? single beep?
3) add/connect video - any image?

All other connectors off (disks, etc) only PSU, fan and case buttons.

If you don't get past 1), go back to the store and have it tested/returned there.

Mar 20, 2009 | OEM Systems Xion / 400-Watt / ATX / 80mm...

1 Answer

One long beep.

  1. Leave the memory slot closest to the processor empty and try booting again. Award bios 1 long beep is memory error as the first 64K of the ram stick closest to th processor is accessed first. since you have tried different ram in different locations, let's rule out the board.
  2. If that doesn't solve anything try a different power supply. Sometimes (Phoenix) gives a long beep when system board or power supply are bad.
  3. Now if nothing else has worked it is probably tour mother board.

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Atx12v1 cable

The repeating single beep with a small pause (actually 3 Beeps a Pause) clearly indicates problems with RAM .Replace it ,your problem will be solved . As for connecting the 12 volt 4 pin connector all mobos are designed to sense the presence of this 12 volts and ONLY THEN TURN ON.

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is it beeping or cherping ,cherping it the power supply trying to run.power supply poss.faulty

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My tv wont turn on all it dose is beep when i pluge it in

If you look on the back of the set, there will be a chasis # probably a CTC169 . These sets usually need to have the power supply repaired. These are great sets and have an awesome picture. There is a kit,I which is available to service technicians which will repair the power supply in most cases. If you can find a good local technician , they should be able to repair this problem for approx $125-150. if you have further questions pertaining to this set , I will be happy to advise you. I probably have repaired a coule hundred of these sets. This is one of the few old crt sets that are worth fixing. Scrivitron

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