ReadyNAS DUO RND2000 Burnt Transistor

Loy wrote:
Hi, I just got my ReadyNAS DUO with a burning smell. After opening up the casing, I found a burnt transistor. Marking 749. It showed Q2 on the Main PCB board. Can anyone advise what chip is it so that I can get it replaced. Although it can still boots up and runs fine, although slower. But My fan isn't working currently. Help is greatly appreciated.

Loy: I'll PM over some contact details so you can get in touch with me.

Sandshark wrote:
I will warn you, though, that that type of catastrophic problem with a transistor is rarely caused by the transistor itself. It appears that whatever is attached to it was drawing too much current, quite possibly a direct short. So I urge you to do a little more troubleshooting before you replace, or at least buy two parts.

Couldn't agree more. No guarantees that replacing the part won't just lead to the same issue, or worse, more significant damage. Finding the cause of the problem is better than blindly replacing parts.