Does anyone know how IRQs are shared on the Asus A7V?

[Noriaki]

Ok..my K7M has an extremely funky IRQ sharing scheme...

AGP + PCI1 + PCI5 all share
USB + PCI4 share
PCI3 shares with onboard sound, but I disable that so it's alone.
PCI2 is unshared.

My old Asus P5A had
AGP + PIC1
PCI4 + PCI5
PCI2 and PCI3 unshared
I liked that alot better...

Anyone know what it is on A7V ?

 

[GaryTcs]

A7V irq's as follows;

PCI 1 & AGP SHARE. (int a)
PCI 2 & ATA 100 SHARE (int b)
PCI 3 & SOUND SHARE (ONLY ON BOARDS WITH SOUND)(int c)
PCI 4 & PCI 5 & USB SHARE (int d)

Hence, only PCI 3 is unshared unless you disable ATA 100.
Hope this helps you with your decision. Also- ATA 100 drivers are still buggy, so you may want to disable for PCI 2 to be unshared.

 

[Noriaki]

DOH!!!
The A7V has onboard ATA100 doesn't it.
Damn I just bought a promise Ultra100 the other day...
Hrmm you say the ATA100 drivers are buggy on the board? Can I disable the onboard ATA100 and use my Promise (it's not buggy)


Thanks for the help with the IRQ sharing.

 

[Dulanic]

Actually there are new drivers on the asus site that are not buggy. They fixed all my problems. They are 1.60 Build 25... Build 19 are the buggy ones.

 

[GaryTcs]

Really? I think I've heard this before. how long have you been using the new driver with no problems?

 

[mirrorlake]

i heard that even you disable the ATA100, you still didn't release the IRQ.

 

[mirrorlake]

And I am quite confused with the PCI4 and 5, why they two both shared IRQ with USB,
when I use USB device what will happene?

 

[GaryTcs]

Irq int b being free doesn't matter if you have the ATA 100 controller disabled in both the bios and windows. nothing else will access the Irq. Except for PCI 2 of course.

About slots 4&5 sharing w/usb, all you can do is use cards that you don't need when usb is in use, or hope that they all get along. I put my modem in 5, and a firewire adapter in 4 cause I never use them both at the same time. I don't have any usb hardware to try out for you.