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Manually change IRQ Address

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by sheyanjing

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I need to know how to manually set an IRQ but no one seems to want to share that info. My ATI 7500 needs to be assigned IT'S OWN IRQ (cannot share one so they say)...but ATI won't tell me how!
When set to manual config., my KD7ADA soyo board set up allows me to either set IRQ to pci device or reserve. Ok..., now I have one IRQ listed as free, how do I assign my video card to it? Have asked soyo but get no response.
Running win98se (supposedely cannot change sys resources "By Design" I have read) My sys runs fine even though the 7500 curently shares an IRQ with IEEE comp device.
I have all newest drivers and bios for everything installed. The only problem I'm having is that when, and only when, I'm on the internet connected via cable modem and using IE6, anytime I attempt to resize the browser window using Min. or max., the screen freezes or goes black - mouse works, red light flickering (like it's caught in a loop) ctl+alt+del inoperative. Have to hit reset/rebootto go back to normal. No problems resizing when offline or in anyother program.
I thought that if I reassign the IRQ for the video card it would clear up the problem. Can't think of anything that would cause this.
Norton sys wks 02 pro w/go back finds no problems, no conflicting devices. Have wiped and reinstalled windows and ie a few times. Have all the newest fixes and patches installed "by the numbers" Local shops and techs are stumped.

25 replies

by thechas

Usually in BIOS settings, there is an option to assign an IRQ for VGA.

That is the switch you need to find in BIOS settings to force an IRQ for the video card.

You might also try setting the Plug and Play OS switch to NO this way, you have more control over system resources in BIOS settings.

Next, make sure that you have enough RAM (196MB - 384MB) and a large enough AGP aperature (2* video ram to 1/2 system ram)

Chas

by sheyanjing

Have 256MB DDR. This is what I have to work with and the current settings that the problem exsists under.
PNP OS set to NO, Reset Config. Data set to Diasbled, Resources Controlled by set to Manual, IRQ Resources all set to PCI Device, PCI/VGA Snoop set to Disabled, Assign IRQ VGA set to enabled, Assign IRQ USB set to enabled, PCI IRQ activated by set to Level, Video Bios Shadow set to enabled, AGP Aperature size set to 64MB (can choose from 32,128, and 256)

by thechas

The one change to make, is to set the "reset configuration" switch to enabled.

You need to do this to report the set IRQs to Windows.

You may also want/need to remove all devices from device manager before changing the BIOS switch.

This will force Windows to re-install the drivers and start over again with IRQ assignments.

Chas

by sheyanjing

Removed all devices, enabled reset switch, reinstalled all drivers (what a hassle! and time consuming) and guess what? No difference!....News Flash....This just in from SOYO..."There is no way of setting the IRQ settings manually. The IRQ settingsare based on the BIOS Core and the OS." Now what? Come on now someone has to be able to crack this puppy! I hate not being able to reduce and enlarge my browser and I hate having to reboot manually 20 times a day.

by exp

I think Soyo is right. There is no way you can change the AGP card IRQ. Also I think win98 won't let you change the display card IRQ as well. Have you tried other AGP card to elimitate the fault??

by sheyanjing

It always worked fine till the HDD had to be replaced that is why I figured it's some setting I was/am unaware of that exsisted before. A capture problem? Any way to adjust capture speeds or sync rates?....Maybe?

by sheyanjing

ATI says that based on their experience, it is a capture issue usually due to system configuration errors. They provided me with a bunch of links to read up on ...i guess others past problems and fixes...but no matter how I try the site says the those pages or areas do not exsist or were removed. So whats up with that?! Things that make ya go mmmmmm! Scratch yer head, chew yer pencil, pound the desk, beat yer head off the wall, part with unavailable money, steal yer kids time, run through the house screaming....etc.

by m.j.

Which IRQ is being shared?

Set "video bios shadow" to "disabled" in the bios.

by sheyanjing

IRQ 10 is listed as having a steering device/control/holder that I assume is OK but also an IEEE compliant something-or-other. I'll try disabling the shadow and see what happens...I'll get back. Radeon 7500 for those who don't know also has Hydrovision and TV Tuner/Capture with 64MB DDR , Accel. Graphics yadda, yadda, yadda.

by mrjay67

Instead of trying to change the video try changing the other conflicting device which sounds like your NIC or modem. You should be able to go into device Manager and set to configure manually(should be a check box). If it doesn't allow you to change the Video card perhaps it will allow you to change the NIC or whatever is in conflict to a free IRQ. You might try placing that device in a different PCI slot to try and resolve the conflict. It seemed like all the posts were concerned with BIOSand thought id offer a different alternative. You might can try changing the other device in BIOS as well if you havent already.

Just a thoguht and hope it helps.

Jason

by sheyanjing

The shadow thing didn't do anything so put that back the way it was. Checking the checkbox to set manually only allows to assign memory addresses and won't allow sys resource setting. according to all installed programs...dxdiag=no problems or conflicts, Device manager=same, Norton=same,program spacific utilities/diags=working properly no conflicts. But now I found one other program where this is occuring ( the cutting off of the signal to the monitor...black screen) and that is oozic player.Happens when a cd is playing and you click to open the oozic player or the soundfont showcase. Could the cable modem also cause that? As I said, This all worked without a glitch over a year till the HD was replaced (due to power failure that damaged too many sectors on the old HD) Nothing new or different has been added or removed, yet now this blanking issue. A weak monitor maybe? cant hold onto the signal...changing to fast? My refresh rate? My apurature size? reselution size? CRT settings? Different MHZ? I've concluded that the bios are all ok and like you I'm starting to look elsewhere for answers. I guess this is what happens when ya put a V12 in a gocart. Custom builds=custom problems!

by sheyanjing

Narrowing it down now...In control panel,display settings, advanced, performance..you have 4 levels of hardware accelleration. none, low, most, and full when set to low all problems of black screen signal loss go away and have no problems resizing anything at any time even oozic works...only very slowly. BUT!!! My TV tuner won't initialize at this setting. If Accelerator is set to full, perfect TV but Black screen problem returns. SO, is there any way to have two custom settings without haveing to reset the accelerator and reboot everytime I want to view TV? (never had to before) Or is there another way to make some kind of adjustment?

by etl65

You have mentioned that a power outage damaged your HD and you have to replace it. Did you ever suspect if your ATI 7500 is a victim too? I come to this conclusion because your system is up and running with no problem until that power outage. AndI think a new HD can not cause an IRQ conflict.

by sheyanjing

I've come to discover that the graphics accelerator is too fast for IE6 and certain other programs. If I turn down colors to 16bit w/res at 800x600 and turn the slider down to low all programs work fine..though a little slow and jerky but TV tunerwont initialize at that setting. Going up to med. setting allows tuner to capture but then programs mess up. There doesn't seem to be a way to adjust the speed of the accelerator to somewhere between low and med. Is There a way? I updated the driver for ati...maybe I'll try reinstalling the old driver again and see. Maybe a new graphics card looms in the near future. Any input on manually setting graphics speeds would be helpfull...Seems there is/was no bios conflict after all.

by m.j.

Your problably right about the IRQ setting, it is perfecly normal for IRQ 10 to be used by more than one device.

Incidentely, when you got a new hard drive, was it an additional, did you plug it in to IDE channel 2? If so then it is possible thatthere could be a conflict as IDE 2 often uses IRQ10

by sheyanjing

The Hard Drive was replaced under warranty because it failed. It was a coinsidiance that it failed at the same time we had a power outage. It is not an add on and was installed by the shop where I purchased the system. Prim.IDE is on IRQ14 and secondary IDE is on IRQ15. Ihe IEEE compliant device that is sharing IRQ 10 is something on the Radeon card (Prob for the Video out/in..hydrovision,camcorders, etc.)So Radeon is really all alone on IRQ 10 ...as it should be. So That elimiated that poss. problem/conflict. Problem i believe is confined to graphics acceleration between the card and the motherboard.

by etl65

KD7ADA? Look into Soyo's website list only SY-K7ADA & SY-K7ADA v1.0, if they are the same, this might help you.
From ATI support:
"Not only do you need display drivers for an AGP graphics card, you also need drivers for your motherboard which enable AGP functionality for the motherboard chipset."
here's the link: http://www.soyousa.com/downloads/filedesc.php?id=1386

by sheyanjing

Just installed ALL newest drivers, AGP etc. ...AGAIN! No help. I'm starting to think that the card and board are not 100% compatable. SOYO and ATI will not give me a difinitive answer on this and both keep telling me to try this, try that, maybe it's something else. Dam if I know, or anybody else for that matter. No one wants to fess up...maybe some legallity/liability? Local pros are stumped, All you tech heads out here are coming up short. Mostly what I have recieved out here is PAT by-the-book troubleshooting. Is there any electronics wizards or pro systems crackers listening out there? I don't believe in NO! It can and will work again! This will be my last rejected answer. The next person who responds must give me precise and accurate help. I will close this question and award points.

by mrjay67

Not sure what else to say. All the posts should get you in the right direction. They all help in getting you in a direction. You initially mentioned a conflict but windows doesnt let you change IRQs. I know some Video cards share IRQs with other devices and usually doesnt cause to big of problems. The issue seems more connected to your NIC or possibly faulty modem. Perhaps you could try installing a different browser for grins and see if the issue returns. Might try Netscape or Opera just to test. If it happens to another browser you can at least rule out I.E. by itself. If the problem doesnt repeat with say OPera perhaps some kind of memory issue. But I would think you would get an error or at least a different issue. However memory problems can cause some odd occurances. Do you have another video card or NIC that you could test with to rule out those hardware issues? From the info geiven it seems like its either in conflict or try to access a bad or in use memory spot. With out seeing it its hard for me to say especially without repeating myself.
Let me know what you were hunting for and perhaps i can address you better.
Jason

by sheyanjing

I tried another browser and still same problem so put IE back in. Then started having odd problem with office 2000, programs would launch stay visable for 20sec and then disappear, so did uninstall/reinstall w/all latest updates...same problem. Now don't know what exactly was cause but it is fixed and working fine now..what I did..removed office completely...removed my new cd-r/rw drive (BenQ) and all its burning software (nero), reinstalled old cd-r/rw (mitsumi) and its burning software (Burn & Go), ran norton utilities 2002 pro, defraged, no more problem. Go figure! Sent cd-r/rw back to fact for review although device was installed and working properly w/no conflicts. Reported problem to Ahead/nero, and also Microsoft office. seems these don't want to play together nicely. Glad it wasn't anthing major. Your idea of checking elseware and then the office problem sent me on the right track. Thanks very much, Aaron

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