Motherboard Problem?

The motherboard is an Abit BP6, I added a hard drive to the Primary channel (Not the HPT) I made sure that all the jumpers on the old and new hdd were correct and added the new hdd as Primary Slave (The old hdd stayed as Primary Master)

The same time i added the hdd i noticed that the first time i turn my computer on each day or if it has been off for a few hours then it will power up the hdd's, not complete the POST (and not give me any beeps) Not power on the graphics card, and the keyboard lights never flashed.

If i turn it off, then back on everything will be fine (It will Complete POST with no errors, then boot up)

I am not overclocking at all...

At first i thought it was a power supply problem (You may remember me posting about this, it's been like this for a while now..)

I ended up getting a new power supply and it seemed like it is working ok... Now it has started doing this again, I know it is not a problem with the power supply since i tested it on another computer, I also tested another new power supply (400 WATT) and is known to work (from a freind) and it also did the same thing. I decided it cant be the power supply or the ammount of power the power supply is (since a 400 watt did the same)

No matter what i did, it would always have this problem... So i took out the hdd, It worked perfectly!

I put in a DIFFERENT HDD as Primary Slave, i started haveing the same problem again....

I changed the IDE cable just incase it was faulty, The problem stayed...

I put the hdd on the HPT controller, no more problems (This is another thing that proves it is not power related) Everything works perfectly while it is on the HPT, if i put it back as primary slave, All the problems return...

I'm thinking that the IDE controller on the motherboard is faulty, but the thing is once it's booted, everything works perfectly... I'v never had any other problems...

Do you think there is anything else i can try before takeing the motherboard back? (I'm trying to avoid that since this is my main computer and i dont want to go back to a slower computer - this already feels slow)

Oh and, has anyone ever had to RMA an Abit board? How is the response time like, would i have to wait a long time untill i got the board/a new board back?

Thanks all, and i know it's a very long post...