Various questions

Where do I change IOQD settings?

What is SCSI?

How do I enable IRQ Holder for PCI Steering?

Are BIOS upgrades free? Where do I upgrade my BIOS?

I'm using Windows 98SE

 

Where do I change IOQD settings? ---GOOGLE

What is SCSI? -----------------------GOOGLE

How do I enable IRQ Holder for PCI Steering? ------GOOGLE

Are BIOS upgrades free? Where do I upgrade my BIOS? ---GOOGLE

I'm using Windows 98SE

 

here's how to find your answers

View this thread

http://www.majorgeeks.com/vb/showthread.php?t=29442

Do your googling, then post back with specific questions

 

Check your motherboard manual for IOQD, should tell you if its possible to change them through bios or not, failing that try support for the mobo.

http://www.sparcproductdirectory.com/scsiscsi.html

Through BIOS..

BIOS updates are free, try your mobo manufacturers website. If your lucky they have their own flashing program which works from within windows and its totally painless, if youre unlucky you need to download the binary file (.bin) and use either Award or AMI flash utilities from a boot disk.

And yes, google is your friend

 

Boccemon's link is a good place to start. Forums like this are great places to get specific problems solved, but are not meant to be an entire learning course.

For your 4 specific questions, in reverse order:
BIOS updates are free, from the motherboard manufacturer, or computer manufacturer. Make sure you get the one that is correct for your system, and follow directions exactly, as botching a BIOS flash can wreck your system. If you're not changing anything or having any problems, you don't need to flash your bios, as that is not a performance improving issue.

IRQ Holder for PCI Steering is a system driver that runs in the background all the time. You don't enable it.

SCSI is a bus protocol, stands for Small Computer System Interface, used primarily on commercial computers, seldom on home systems, except for some old scanners.

IOQD is way beyond your current level of expertise. And is not something that you need to change. Put that one on the back burner for the present.