new psu... bad vga refresh

**Doctor Feelgood** · Posted: Sun, 08 Aug 2004 20:39:57 Post Subject: new psu... bad vga refresh

I have a new psu I am testing... Installed it in just like the old one, which had no problems.

Now, I can see lines scroll up the screen, as if the refresh was set wrong on the display settings. Noticed that the lines move faster the higher I set my rheobus to control any one of the three fans connected to it.

Can't fix it exceot to not have those fans connected... not an option. Tried checking all connection, running wires away from each other, all kinds of Windows and monitor adjustments... still there, and m eyes are getting tired!!

Ever see anything like this? Any suggestions? Seems like a great psu, but this is unacceptable.

Spire · Posted: Sun, 08 Aug 2004 21:36:29 Post Subject:

EMI interference, a faulty PSU.

Somehting isn't grounde3d right or they just didn't shield things right.

I have seen it once, but that was an EXTREMELY old and crappy PSU.

BeerCheeze · Posted: Sun, 08 Aug 2004 21:52:34 Post Subject:

Exactly what Spire said. If you didn't have problems with the old PSU.

thePMG · Rated XXX Joined: 24 Apr 2004 Posts: 393 Location: Germany

Inductive current is a pain in the a$$ sometimes.

**JimBowy** · Moderator Joined: 02 Aug 2003 Posts: 1627

i get a wavy monitor too, but i think it was from my power always fluctuating.. with my UPS installed i dont get any wavy screens

T-shirt · Posted: Sun, 08 Aug 2004 23:28:26 Post Subject:

I vote with spire, bad ground, poor shielding, bad or defective components.