What are your system voltages, and what PSU are you running?
My brother had a problem with a failing True550 that was unable to hold the +5v rail up; he experienced garbled video. The 6600GT pulls more power than your old cards, so a cheap, weak, or otherwise underpowered PSU could be responsible.
However, it is more likely a bad card. XFX doesn't exactly have a reputation for being the highest quality of the nvidia cards. I think I would consider returning it in favor of a more reputable brand.
Greg
----- Original Message ----- From: "Mark Dodge" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, April 21, 2005 4:04 AM
Subject: [H] XFX 6600GT
Well with much anticipation I got my 6600GT in today and tried installing
it. When I booted up the was nothing but a garbled screen. I could see the
boot process slightly and all indications that it was going into Windows.
When it got to the XP splash screen the video got better but still had
artifacts and then getting to the logon screen cleared up entirely. Ran the
install CD and it said to reboot, and then the garbled screen again on boot
no better than before. It goes into Windows but will not be recognized by
the drivers and will not allow screen resolution changes. I was able by
repeatedly rebooting able to get to the BIOS and make sure that the AGP
inits first and so on, but to no avail.
I'm thinking the card is bad any other ideas to try??
MSI KT6V with the latest BIOS and drivers currently running a 9500 soft
modded to a 9700 but before the install it was a AIW 9800 Pro. I uninstalled
the card and ran ATI's utility to remove all drivers and other software
associated with the ATI cards.
Mark Dodge MD Computers 602-421-0329
