What does changing the AGP voltage in the BIOS do for IS7?

strokeside

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Jan 10, 2002

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Dublin, Ireland

• Jun 4, 2004

• #1

If I up the AGP voltage in the IS7 BIOS, what voltages are affected?
the GPU voltage?
the GRAM voltage?
the AGP Bus voltage?

which?

 

Steven4563

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Feb 19, 2003

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Northants England

• Jun 4, 2004

• #2

the AGP Bus Voltage i believe

 

OP

strokeside

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Jan 10, 2002

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Dublin, Ireland

• Jun 6, 2004

• Thread Starter
• #3

Well I spent saturday overclocking my GFX card.
Thought I had reached a limit of 328/313, but htat was with AGP voltage at 1.55V. I rebooted and put it up to 1.65V, and I have now maxed out at 378/333.
You sure it's only the AGP bus voltage?
Know a way to increase it above 1.65v?

 

Sjaak

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Apr 26, 2004

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The Netherlands

• Jun 6, 2004

• #4

Its not only the AGP bus, but also the Northbridge voltage. If you go very high on FSB and RAM, more AGP (and thereby Northbridge) voltage will make it more stabile. However, Ati cards (9x00) dont seem to like very high AGP voltages.

 

OP

strokeside

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Jan 10, 2002

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Dublin, Ireland

• Jun 6, 2004

• Thread Starter
• #5

I am only pushing 170MHz on the FSB, so no North Bridge problems there. It is well able to run > 250.
Just wondering as the overclock of my AGP card inscreased when I increased AGP voltage in BIOS.
Oh well, will be Vmodding my card anywho.