Video card is sharing IRQ with other devices.. is this hurting my performance?

[LS20]

I'm using the ECS K7S5A motherboard and its built-in NIC and Sound are both using IRQ11... as well as my Siluro GF2 MX200 video card..

so 3 different devices on 1 IRQ... there seems to be problem as they all work..but is it hurting video speed? the GF2 MX is already slow as it is...


btw I have IRQ 7 and 9 free..why dont they take one of thsoe?!

 

[cholley]

some video cards are pickey about it , some not
run 3dmark and compare it with others with similar rig

 

[HawkeyeColt]

I't won't hurt your performance. That's what bus mastering is all about. IRQ 7 is your printer IRQ and depending on your OS IRQ9 is the ACPI IRQ. Video cards won't use those IRQs. I run WinXP and have 4 devices on IRQ11 and everything works find.

 

[AndyHui]

Please read the FAQ: Why are all my devices using one IRQ in Win2K/WinXP?

 

[killface]

Has anyone noticed any improvement in performance by switching to standard PC. I had a friend tell me he's noticed a big diference, but I havent really noticed any. The only difference I notice is not being able to automatically power down my PC anymore 😉

 

[Calin]

The IRQ are usually hard-wired on PCI slots (the BIOS do that). I saw mainboards with which you could choose
what IRQ on what PCI slot you use, but I have also a K7S5A and this is missing.
Anyway, there should be no performance hit - when a IRQ comes, identifying the device who generate it is
much faster (alot faster) than the other processings necesary.

Calin

 

[RussDogg]

I have the same problem. I had an ATI Radeon AIW and it was sharing IRQs and working horribly. Now I bought some cheapo vid card, Kyro 4000 and am having the same problem, can you manually assign the IRQs?

 

[corkyg]

It was said already - some video cards will share and some won't. It is also a mobo/PCI slot thing as far as what IRQs are share with what devices. In my systems, the AGB slot shares the IRQ with whatever is in PCI slot 1. Therefore, I have nothing in that slot. PCI Slot 2 does not share. The rest share with other on-board devices such as USB and Audio. No problems at all. My vid card is a Radeon 64 DDR, and it is on IRQ 11 shared with nothing.

 

[LS20]

<< I have the same problem. I had an ATI Radeon AIW and it was sharing IRQs and working horribly. Now I bought some cheapo vid card, Kyro 4000 and am having the same problem, can you manually assign the IRQs? >>


besides the video.. i could have switched IRQs on other devices like LAN card,modem, etc...

that was in W98, though... under device properties and resources... im not too familiar with 2000 right now, so i dont know what to tell ya =\

tr tooling around , though