Topic Title: ATI Radeon HD 4870 X2 Recently Started Flickering
Topic Summary: Graphical errors with ATI Radeon HD 4870 X2
Created On: 04/25/2014 10:05 PM
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 04/25/2014 10:05 PM
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Posts: 1
Joined: 04/25/2014

Graphics Card
Two ATI Radeon HD 4870 X2 used in Crossfire.

Overclock settings are at the default. I haven't messed with them.

AMD Catalyst Driver Version, and Driver History
Presently using 12.4. Was using 13.4 until today.

Operating System
Vista 32-bit

Issue Details
When I first purchased the system with these cards, I could run games like Civilization 5 and Skyrim on high using crossfire.

A year or two ago, crossfire started causing textures to flicker, so I had to disable it for most 3D games.

Starting this year, any full-screen 3D games will now flicker every minute or so, accompanied by graphical lag. I'm hoping to find a way to restore the original performance of my cards. I was using 13.4, as the support site says this is the most recent for my cards. Upon reading through some release notes, however, I found 12.4 to be the last to support 4800 series cards. I completely uninstalled 13.4 and all application profiles before installing 12.4. The flickering still occurs, though crossfire seems to work better now. Less texture flickering. Just lag flickering.

Motherboard or System Make & Model

Power Supply

It's not in my purchase invoice from five years ago, and I don't really want to open up my computer to check right now.

Display Device(s) and Connection(s) Used
HP vs19c

Applications and Games

Diablo 3, Skyrim, Civ5, probably others that I can't recall right now.

CPU Details
AMD Athlon(tm) 7750 Dual-Core Processor

Not overclocking it unless the computer shipped that way.

Motherboard BIOS Version
Ver- 08.00.14

Pretty sure, at least. I don't believe I've updated it since I received it.

System Memory Type & Amount
I don't know the brand. Four sticks of 1GB DDR 2 memory. 802 MHz.

Additional Hardware
Nothing of consequence, as far as I know.

Additional Details
Did a virus scan with Microsoft Security Essentials. Checked Speccy for anything appearing out of place. Didn't notice anything. Fiddled with the VISION control center settings a bunch.

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