No Signal - dead HDD?

I have 2 PCs, 2 VDUs. My Acer L320 (Small Form Factor) will not boot on either VDU, the other PC likes both. The L320 blue power light goes on, stays on fine. The next light (HDD?) shows some initial life, but the VDU gives "no signal" & the HDD (?) light lasts some 30 secs: no "beep". I have thrown Acronis Disc Manager 10 at it, as well as an OS to raise possible options on screen: no joy. Ideas?
I could do a little surgery with a tower pc but my small form factor looks more awesome.

 

Hi,

You need to post your exact hardware configuration and OS

 

Hi cozumel
It's a 2 Gb RAM, 320 HDD, Intel Core 2, DVDRW. Hope that helps.

 

Hi cozumel
It's a 2 Gb RAM, 320 HDD, Intel Core 2, DVDRW, with Vista 32. Hope that helps.

 

Other than switching cables, everything else requires opening the chassis. Are you comfortable working inside the case of your Acer?

 

vinyamar777,

Reseat your RAM. Reseat your video card if have a dedicated video card. It doesn't sound good.

 

I was going to suggest that if he felt comfortable lol. After all, the next step would be testing outputs from psu and from household electric plug sockets, then stripping the system down...Gets pretty intense...and interesting..and fun...but only if he felt comfortable and safe.