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HD 4850 D1601 Led -BlAcK ScrEEn-

Last response: in Graphics & Displays
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June 24, 2009 3:18:19 PM

Phenom II x4 955 Black Edition
Zalman CNPS 9700
Raidmax 630w PSU
Asus M4A79T deluxe
2x Sapphire HD4850 in Crossfire

I just recently put together my computer and tried to install ubuntu after i already had xp installed. after 2 failed ubuntu installations, i rebooted my computer and changed my cpu clock speed to 3600 MHz w/o changing any other voltage. i saved the changes and rebooted and the monitor couldnt display anything (aka black screen) and then i noticed one D1601 led on each graphics card light up. Can anyone help?
June 24, 2009 3:31:49 PM

Something like this happened to me . I just removed the CMOS Battery and then replaced it back. Remove for like 5-10 seconds until the BIOS automatically resets. Its because of the overclock. Or use the CMOS jumpers to reset it.

If not try the monitor on the onboard video port.
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Best solution

June 25, 2009 10:05:09 AM

Reset the BIOS and try for a less agressive overclock.
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