Problem with ASrock DualVsta 939 mobo

Your PC speaker is connected yeah?

If not, it could be the graphics card. It could also be the CPU. Any way you can get alternatives for those to try?

Or you could just DOA the mobo anyway and hope that the replacement works.

Sorry to state the obvious, but if your gfx card is OK, and you have power, it is either CPU, Mobo, RAM or incompatibility between the three.

The only way to really find out once you get to this stage is to eliminate things one at a time. It looks as if you eliminated RAM, so your next step is to try / buy another mobo or chip I'm afraid.

Good luck with it!

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 )

Anyways, good luck.

Bob

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.

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.