I have been running this board fine for some time now, like 3 months, I went to reboot it the other day and it would not boot but would beep one long slow beep over and over.
I have swapped out the power supply, motherboard (vendor swap yesterday Bios 1013 is on it, new fan on the bridge chipset looks like from the factory ), video card, disconnected all the peripherals and it still will not boot up unless:
1) Remove the cmos battery
2) let the motherboard charge die down
3) power up after cmos looses charge
Then the machine boots JUST ONCE with bios defaults, which would not be so bad but I need the Nvida raid to drive the sata hard drives. To get it to boot again, I need to repeat the above.
My regular IDE seagate hard drive WILL boot fine and run, I have a backup win xp operating install on that. I played games on it last night fine for quite some time, rock solid.
Of course the board is mostly crippled this way.
I upgraded to a brand new 500 watt power supply.
It has Kingston HyperX PC3500 matched dual channel in the correct alternating matched color sockets(ddr,433) memory in it, which this board could never run unless it was set to manual 400 and leave the other timings defaulted or memory speed set to Auto.
So, I think I have figured out its not: video card, power supply, drives, if its the motherboard, then 2 different identical model motherboards are giving the exact same problem.
I do have to use an adapter to get the right connectors from the power supply for this kind of ATX board. The ps is an brand new Ultra X Connect 500 with the modular snap in cables. The motherboard requires the expansion adapter to get enough pins to connect all the rails. This short motherboard cable power adapter looks fine, all pins and sockets look good. I took it out and examined it closely.
All I can think of is its a cable from the powersupply to the motherboard, the CPU ( which is an AMD x2 4400) , or the memory. Tried an ATI PCIex and NVidia PCIex video board. Both work for the post and running the regular IDE seagate so they are not the issue.
This seems to be in the hardware somewhere.
I have spent 2 days on trying out swapping piece after piece. Anyone have any suggestions or similar experiences?
I really think this motherboard was never ready for primetime and is frankly a POS if turns out to be it just wont run stable with the cpu and components I have on it. I have read many posts on here about how iffy this A8N-SLI deluxe is for some people.
I posted this here and on the main part of the forum trying to reach people for advice since it seems to be a really hard to dig out problem, or just a lemon product from Asus.