my gfx is working in my current setup, also i Tried a pci-e gfx a while back so i doubt it is that. The pc speaker is connected yes, shall i try it with the ram out and see if i get any beeps? I bought the cpu from an e-tailer and i got the mobo from an ebay powerseller, new. this was probably over a year ago so it is out of its warranty methinks.
I had a similar problem when upgrading the Flash bios on my 939dual-SATA2 board. It didn't like the kingston hyperx ram I was running along with my Adata Vitesta ram. I removed all pci cards and disconnected all ide and Sata drives, then I removed all but one stick of ram and it booted up. This was a big relief to me as I thought I had killed my mobo when I flashed the BIOS.
These Asrock 939 boards seem to be very finicky with what type of ram you put in them, especially if you are running older bioses. Check the sticker on the Bios Chip. It will tell you which bios version came with the mobo. May also want to check the ram with the Asrock website to make sure you are running compatible ram.
Along with some of the other suggestions already given, a few other things come to mind to check to make sure you rule out other problems:
PSU-make sure the correct cables are connected to their respective connectors. Some PSUs have 2 types of 4-pin connectors on them, one I know is for the mobo. I forget what the other one is for. May even want to pull all the connectors and reseat them, just to make sure they are in correctly. Maybe you could even try the PSU from your other system to see if it will power up?
CPU-may want to pull the CPU and check all the pins to make sure you don't have any that bent over when you first inserted into the socket (I had this happen to me once, so it can happen).
MOBO-make sure you used the stand offs when you installed the mobo into the case. Hey, sometimes you learn by having these "obvious" errors happen to you...(like I did...lol )
I have 2 dual sata II boards. I like them so much that I'm not going to spend another dime on an upgrade for awhile. You're going to spend a grand on another upgrade cause your board has died. Don't do it. It's not worth it. I would check newegg or smksuperstore for open box or closeout specials and get another board. It's alot cheaper. It takes me a long time to save a grand.
I would like to stick with amd, however they dont have any decent offerings at the moment, and if i was to buy a new rig i would want it to be as future proof as possible so i will spend on a decent one. it will take me a long time to save that too but fortunatley i have a nice credit rating lol.
im from UK also so no newegg for me, i checked out tigerdirect, but the shipping costs made it worthless for me to order from there.
I have a 500w generic PSU, however i did a psu calculator for my system and it only came up with 270watts of juice needed....
The two problems here are:
1) Generic and other low-quality PSs often have voltage droop and/or other problems under medium/high loads.
2) For modern systems, watts don't really matter anymore, what matters is the amperage available on +12V. There are a number of power supplies with jacked-up +5V and +3.3V outputs to boost the "watt count" that aren't very useful because they have limited +12V amperage.
A word of advice - if you can, get your key components (mobo, chip and RAM) from the same e-tailer. That way if you get any problems like this you'll find it easier to RMA items as it must be *one* of their items that's faulty.
Also, don't use ebay for stuff like this. It's rarely cheaper anyway.