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problem oc'ing 9500 pro with oc'ed system

Uptime73

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I have an AMD XP 1800+ (thoroughbred model) that has been over clocked to 2000+ and Gigabyte GA7VT-600 motherboard. My video card is a ATI Radeon 9500 Pro that has already been flashed. When I use ATI Tool to oc my vid card, the display becomes corrupt and makes the system unstable. Furthermore, when I overclocked my system, the clock speed for AGP was increased from 66 MHz to 73 MHz. I don't know if that has anything to do with it not. What should I do?

- Josh
 

INSTG8R

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yes your better to try to Lock the AGP at 66. how are you overclocking? I know my Gigabyte locks the AGP/PCI in the BIOS unless I tell it Otherwise. If your using "Easytune" it wont lock the AGP try OC from the BIOS
 

Uptime73

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Columbus, Ohio USA
System Name custom built clone
Processor AMD Phenom 9950 Quad Core (Agena)
Motherboard ASUS M3A78-EM
Cooling Zalman CNPS9700 LED
Memory OCZ Fatal1ty PC2 8500 4 GB (2 x 2GB)
Video Card(s) Visiotek ATI Radeon 3650
Storage Western Digital 320 GB SATA II hard drive
Display(s) Proview CRT
Audio Device(s) onboard
Power Supply 475 watt not sure of brand
Software Vista Ultimate Edition x64, Service Pack 2
I am oc'ing through BIOS. How would I lock the video card in at 66?

- Josh
 

Uptime73

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Columbus, Ohio USA
System Name custom built clone
Processor AMD Phenom 9950 Quad Core (Agena)
Motherboard ASUS M3A78-EM
Cooling Zalman CNPS9700 LED
Memory OCZ Fatal1ty PC2 8500 4 GB (2 x 2GB)
Video Card(s) Visiotek ATI Radeon 3650
Storage Western Digital 320 GB SATA II hard drive
Display(s) Proview CRT
Audio Device(s) onboard
Power Supply 475 watt not sure of brand
Software Vista Ultimate Edition x64, Service Pack 2
How would I lock in the video card at 66 through the BIOS?

- Josh
 

gerrynicol

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I am not sure you can lock the agp speed on that particular motherboard, as soon as you increase the FSB you are increasing both the PCI and the AGP buses.
 

Uptime73

New Member
Joined
Feb 5, 2005
Messages
109 (0.02/day)
Location
Columbus, Ohio USA
System Name custom built clone
Processor AMD Phenom 9950 Quad Core (Agena)
Motherboard ASUS M3A78-EM
Cooling Zalman CNPS9700 LED
Memory OCZ Fatal1ty PC2 8500 4 GB (2 x 2GB)
Video Card(s) Visiotek ATI Radeon 3650
Storage Western Digital 320 GB SATA II hard drive
Display(s) Proview CRT
Audio Device(s) onboard
Power Supply 475 watt not sure of brand
Software Vista Ultimate Edition x64, Service Pack 2
unable to lock AGP/PCI ports speeds

Since I can't lock the AGP/PCI ports speeds, the AGP/PCI ports speeds increase as I increase the FSB. This cause stability problems with my ATI Radeon 9500 Pro flashed to 9700 Pro. Is there anything I can do about this problem, and to oc my system, besides replacing the motherboard? Thanks.

- Josh
 
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