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Old 27th August 2018
shep shep is offline
Real Name: Scott
Arp Constable
 
Join Date: May 2008
Location: Dry and Dusty
Posts: 1,262
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According to this:
https://www.dell.com/downloads/emea/...0_gx520_uk.pdf

Quote:
Video Graphics Controller
Integrated Intel Graphics Media Accelerator 950
DVI Adapter card (GX620); 128MB ATIĀ®
RadeonĀ®
X600SE with DVI and TV-out (GX620),
ATI Radeon X600 256MB Dual Monitor Graphics Card (Dual DVI/VGA via optional cable)
You may well have an integrated Intel video. It appears that a second radeon card provides a dual monitor setup. Are you using the "optional cable"? Sometimes, you can disable one of the video chipsets in the bios.
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