Question about Abit AV8 VIA K8T800 Pro Socket 939 DDR 400 ATX Motherboard (MAV8COMBO)

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Abit av8 new board av8 cpu 3500 when switch on board led lights on and green led lights on but no cpu fan . replaced psu and the same problem reset cmos jumper and when power button pressed nothing happens. only have a graphic card in with one stick of memory and cpu . no hd attached at the mo

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Re: abit av8

Ensure that you got the cpu fan connected to the correct place, the board has 2 one for the cpu fan andt the other for a system controlled case fan.

If that dont work check to see you got the power supply connected to the board propperly, there is a seperate 4 pin connector using 2 yellow and 2 black wires ensure it is correct.

Check your power supply

unplug the power supply and bridge the green wire with the black one next to it to see if it comes on. OR JUST CHANGE THE POWER SUPPLY TO SEE IF IT WORKS.


Posted on Jan 03, 2008

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No debug LED show on my flaming blade gti

If your PSU give wrong voltage it produce same problem with 2 solution:
1-test your PSU
put a wire between green and black and voltage must be:
yellow 12V, red/purple/gray 5V, orange 3.3V.
If your PSU give under voltage (more than -10%):Buy a new one and test your motherboard(mb) with it (in this case there aren't a lot of chance that your mb and/or your CPU are dead)
If your PSU give good voltage:(-10% / +5%):There are a lot of chance that is you mb or CPU
If your PSU give over voltage:Buy a new one and test your motherboard with it (in this case there are a lot of chance that your mb or/and your CPU are dead)

Nov 19, 2012 | Foxconn Motherboards

1 Answer

I have an abit av8 mother board and am tryng to install a new power supply (G7 powr exteme) the LED2 is flashing with with no constnt power availabe to power up te system please help is my board or th

Hello here is the homepage:

You have probably connected the +12 volt 4 pin, connector wrong.
The pci-e graphic connector, sometimes fit here.
When this happends the mainboard will not boot up.
Try to read the manual for the power supply.

Good luck

Nov 09, 2012 | Abit Motherboards

1 Answer

I have an Abit IC7-G motherboard. Machine has died with no reaction from pressing power on and reset buttons. Power cable in is OK and when connected, green light behind IDE1 socket lights up (which says...

Most obvious problem would be the power supply. The green LED only indicates that the 5V rails os working enough to power the on/off circuit on the motherboard. First disconnect everything except the mother board from power supply. Then try switching on again. If this does not work, then disconnect the power connectors from the motherboard. ON the big power connector (P1) there should be a green wire with two black wires either side. This is the power on sensor wire. Use a paper clip or similar bit if wire to short out the green wire with one of the black wires. This should start the power supply and the fan in the PSU should spin. If this does not work then the PSU is definately faulty. If it switches on when there is no load connected then it is probably only slightly faulty (not able to provide sufficient current). Since the green LED is coming on, my guess is that you have bad capacitors in the PSU (they will probably have domed tops instead of flat). Try a power supply from another PC if possible.

May 25, 2011 | Abit IC7-G Motherboard

1 Answer

Have an Abit IC7 motherboard in a system given to me by a friend. I have two problems in getting the board to boot. 1) One of the brackets that the spring mount uses on the Northbridge chipset fell off...

1) The bracket is a simple push fit one - it just pops in and locks in there when pushed.
2) Simple test (assuming that the processor , video card and the memory have been tested in another motherboard and are good): remove all the disks and try to start it up into the BIOS - if you can't then the problem is in the motherboard. As a last hope reset the BIOS and remove the battery for one hour. If it doesn't starts even after that then the board is dead.
The DVD burner will power up and seek even if it's not connected to anything else - all that it says is that the unit is working normally.

Dec 16, 2010 | Abit IC7 Motherboard

1 Answer

Pc not starting from pressing power on. Green LED for SB_PWR is on and when power switch pressed, fan & cool fan flicker momentarily but nothing happens. They do not spin. No LED light appears on front...

> PC had been suddenly powering off several times intermittently for a few days leading up to this state. Does this mean the PSU or Motherboard is at fault?

Yes, either CPU or PSU or motherboard are the likeliest culprits.

It's easier to try a different PSU than to try a different CPU or motherboard.

Nov 18, 2010 | ASUS K8N-E Motherboard

1 Answer

Abit av8 bios post codes 8.3 - 8.6 - 9.c What is failing on boot ? I get one long beep followed by 4 short beeps. I have swapped video cards and reflashed the bios with no help. If I reboot 2 or 3...

I still did not find beep code that match your problem..

Anyways here are the common beep codes for your motherboard.. it might help you too.
1. No beep - no reaction, the mother board is dead, power supply problem, processor and or ram problem.
2. 1beep - board is working fine.
3. One long beep then it shuts down - cpu problem, your processor is not working or missing.
4. 1short beep - system boots normally
5. 2short beeps - CMOS setting error.
6. 1long 1short beep - dram error
7. 1long 2 short beep - video card or monitor not connected
8. 1long 3 short beep - keyboard error.
9. 1long 9short beep - ROM error
10. Long beep - memory card is missing or not connected
11. Short beep - power supply error
12 Four beeps - there is no fan detected on Fan1 or Fan2 header. make sure to attach or reset CMOS bios to factory setting.

Hope this gave you an idea of your problem..

Much appreciated if you rate this help..thanks..

May 23, 2010 | Abit AV8-3rd Eye Motherboard

2 Answers

After psu burned out , can't boot computer with

see your cpu fan connector, weather it is connected properly. to check wether psu is working properly, short the black n green wires present in the psu's mother board connetor by using a single strand wire, and switch on. if the fan rotates there is no probs with the the psu. then u will have to replace the motherboard

Sep 04, 2009 | Gigabyte Motherboards

1 Answer

Can this motherboard be saved?

did u replace a different vga card?

Jul 07, 2009 | Motherboards

1 Answer


When a power supply goes out the way yours did, it's going to fry the MB 99% of the time. So you're going to need a new MB. It's possible that you CPU is ok, but that could also go too. I would replace the MB first, then the CPU if that doesn't work.

Nov 07, 2007 | ASUS A7V8X Motherboard

2 Answers

Motherboard ABIT KN8

i dont know about the red light, but all main boards these days have a built in protection if the cpu fan quits. check the cpu fan connection, ensure that it and the heat sink are dust free. if still no go. update  your question with exact info..e.g. does absolutely nothing.. how many beeps you long b 4 it dies.. final note: be careful what you touch.. static can harm more that most think and the oil from touching can retain heat.

Oct 29, 2007 | Abit KN8 Ultra Motherboard

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