Plain and simple question about chipset settings.

[Peettreedish]

I have a gt520 installed on my computer. I am trying to free up irq's. One setting that I am not having much luck with finding out more on, is the assignment for a vga irq. So far what I can figure out is that this is for onboard graphics. If I have a card in a slot do I need this to bee enabled?

 

[kelthic]

if i understand you correctly, to my knowledge, no you do not need an on board graphics enabled if you are running a discrete graphics card. As a matter of fact way back when i had a pc with on board graphics, i had to disable the on board graphics to install my card properly.

 

[Peettreedish]

Sorry to sound un-appreciative for the reply, but my question is not whether or not to have on board graphics enabled/disabled. I was referring to another setting that is about the assignment of an irq to vga. Does this need to be enabled when there is a pcix card present?

 

[kelthic]

This really isn't my forte, but i did locate the following forum:

http://www.rage3d.com/board/showthread.php?t=33771984
http://www.nvnews.net/vbulletin/showthread.php?t=33191

the second of which seems to state that disabling VGA works with AGP cards.

http://www.techrepublic.com/article/what-to-do-when-you-run-out-of-irqs/5033571

That thread about half way down seems to state that unless you are using your card for 3d applications or as a tv tuner, etc, it probably does not need an irq.

Hope this helps!

 

[Peettreedish]

Yeah I have read those, but it is not too clear. No one has really answer that specific question. I guess the only way to find out is to do it.

 

[Peettreedish]

So it seems that my answer is a yes, for anyone that cares. Disabling the (assign irq to vga) in the bios does not effect the PCIX card. It remains on irq #18 in the device manager. Those bios settings were for the on board card.