noelaudio

I have a Gateway 610 for quite some time now. A year or two ago I replaced the PSU with one from a mfg in China that was doing the newest revision of that form factor. It solved my blinking screen problem directly...until now :(
Just today it started doing it again. I just moved recently into an older home so I thought it was maybe a supply voltage to the computer and so I put it on a APC UPS, but that didn't make any difference. I've also unplugged the sub (which helped last time) no improvement. So I'm left with either an under powered PSU (I have recently put in two gigs of mem though I'm not knowledgeable enough to know if the current draw across another ram module is enough to drop the total current in the system that much.) or a bad inverter board.
My question is how varied are the types of inverter boards inside these machines and will buying a replacement from an online site be a proper solution, or are all of these inverter boards inherently faulty for this set up?

Note: while writing this email I reminded myself that I didn't have both pieces of memory in the computer until recently as MemTen sent a bad module and I returned it so I've only been operating on 1 gig until today. I put the 2nd module in and then I started having the screen issue.
I just removed the module and it seems the blinking has stopped!

So IS this a power supply issue? Would it be best to go get a larger PSU and run it outboard of the computer. I remember this being a solution when I had this problem the first time around.

Has anyone done this recently, can I merely extend the PSU connections to a new power supply? It has been quite awhile since I've really dabbled in computers so if this is a solution could someone point me towards the proper type of PSU to purchase.

Sorry for the lengthy post as it seems I've found my problem, but I am still curious about the sustainability of replacing the LCD inverter.

Thank you

Noel