A newly constructed legacy system isn't posting despite having a working led.
A newly constructed legacy system isn't posting despite having a working led.
I recently assembled a new legacy system that doesn’t power up from a completely new motherboard, which seemed promising based on the details I found online. The LED lights up but nothing functions even when I try to jump start it. I’ve searched extensively on Google but haven’t located any similar information. My setup is Windows 7 Professional SP1 64-bit with full specifications available, and I don’t have the BIOS version or error beep codes from the motherboard since I don’t have a board to share.
Recommend using a speaker to identify the issue. You won’t be able to proceed much without it.
The P5G41T-M LX is quite a neat board, with many variations for the 775. Your G41-based unit should handle the Q9400 without trouble. Are the fans running? Any movement at all? If so, you might be dealing with either RAM or GPU issues—both can lead to similar No POST signs. As the KGB suggested, a PC speaker connected to the 4-pin header can be very useful when working on a Core2 system lacking a detailed code display. Have you confirmed the 5770 is functional? The RAM came from a reputable supplier; it's uncommon but possible with the Q9400. Still, I've seen Core2 boards that have been thoroughly cleaned and function perfectly, as well as a QX unit that required just 1.9V for a long time. It’s unlikely this is the main issue, though it’s worth noting.
there’s a single 120mm 3-pin unit that isn’t responding, while the rest shows only PSU noise and one active MMO LED. I’ll attempt to find a 4-pin speaker soon. I’ve also confirmed the HD5770 is working with both LEDs on using a different board—likely a blue Dell memory from an Optiplex device.