Cisco 3500XL PSU Fix

This is just a proof of concept/quick hack; I’ve recently been given a dead Cisco 3500XL. Plug the power cable in and I got no action, no fans, no lights, etc.. Removed the lid and looked inside: The power cables appear to be the same colors as a molex connector, so just like the Dell 2600 Series Sata Mod I decided there’s nothing to lose by giving it a go. As normal, the yellow cable is 12V+, blacks are ground, and red is 5V. Short the ATX PSU’s Pin 14 to 15 (PS_ON and COM), then watch the magic happen. Continue Reading →