Over the past few months, I've been intrigued with the idea of attaching a VGA monitor to the HP EX470. Every time I take my server apart (whether it be at upgrade the RAM to 2GB or upgrade the processor) I can't help but to notice the empty connectors on the motherboard; the most interesting of those are silk screened CN2 and CN10. I just knew that somewhere among these unused pins that there just had to be the signals to drive a VGA monitor.
I guess that I wasn't the only one. Someone going by the handle ymboc over on MediaSmartServer.net not only had the same hunch, but took his suspicion a to the next level. ymboc has not only determined that CN2 contains signals for R, G and B video output, but also HSYNC and VSYNC. He has also ordered the proper connector and has tinkered with actually connecting a monitor! So far he hasn't produced any visible VGA output, but I'm guessing that he should have it solved within days at the rate he is going.
I'll be building my own cable as soon as he has everything worked out and will be happy to provide complete instructions here (or link to ymboc's instuctions if they are made available).
Great job ymboc! You deserve a lot of credit for the work you have done so far and I look forward to seeing your completed project. You can follow ymboc's progress and read all of the excitement here.
**** UPDATE ****
He did it! Watch the YouTube video showing a VGA monitor hooked up to the HP EX470 motherboard.
**** UPDATE 2 ****
As ymboc points out in the comments, a complete schematic of CN2 has been posted along with pin outs for a serial port and PS2 keyboard and mouse (although it is labeled CN9 for some reason). Thanks for the heads up.