Sound problems - Pipping & Clicking

[mattius]

My system is as follows:
MSI KT4 Ultra MB
Athlon 1.4ghz
768mb RAM
G4ti4200 128mb
Win XP Home
FS2004

I get popping and stuttering when I'm flying through dense clouds. I believe the problem is due to the following:- I have a C-Media onboard Sound, CMI8738, which shares IRQ 16 with my AGP Graphics card. I definately don't want to re-install Win XP! How do I change either of these? I obviously cant move the cards around as I only have 1 AGP slot & the sound is onboard. I seem to have the following spare IRQ's -2,3,4,5,7,10,11,12,19 & 20.

Any help would be enormously ucho appeciated!!

[DemolitionMan]

The best thing would be to install a dedicated soundcard(I would recommend CreativeLabs cards)and then disable the onboard sound in BIOS.Even if the onboard sound is running properly it uses much more CPU power than a PCI card ever will,and in FS you need all the CPU power you can get.Although the OBS chips are better than they used to be,a PCI card is still the better way to go IMO.If you really want to stick with your OBS,it's often possible to re-allocate the IRQ's in BIOS,I'm not familiar with MSI mobos so I can't say for sure,depends on your BIOS.Some mobo manufacturers limit the settings you can change in BIOS to stop people frying the system.Look in the mobo handbook,it should tell you what's possible and how to change it.Hope this helps
Best,
Grahame (EDHL)

XP Pro
Albatron KX18D Pro2
XP 2700
1Gb Infinion PC2700
Asus FX5600 128mb
WD 60GB 7200
Samsung 80GB 7200
SB Audigy 2
Chieftech case
Antec True Power 480W PSU
Titan+Pabst cooling

[FatTulip]

This seems to be a massive number of interrupts free. If this is the case, there shouldn't be an issue with sharing as XP is pretty good at this.

Go;
Start/Settings/Control Panel/System/Hardware/Device Manager.

On the top bar;
View/Resources by connection.

Extend the trees for DMA & IRQ and this will list the IRQs in use on your system.

If you have any IRQs free, you can change things around using;
Right-click/Properties/Resource Tab.

Most likely candidates which can be swapped are unused COM ports which usually get assigned IRQs in the 3-6 range.

If there's nothing free then you'd have to disable something, restart, and assign the free IRQ to your problem hardware.

[Qballbandit]

Hi guys!

Ok, so on my XP Pro system, I get popping and clicking occasionally while using my keyboard, so do these above priciples still apply?

AMD Athlon XP3000+
ASUS A7N8X nvidia nforce2 mobo
ATI Radeon 9600 pro, 128 mm
512 PC3200 ddr
SB Audigy X-Gamer 5.1
WINXP Pro

http://www.flightsim.com/dcforum/User_files/3f295fda5ad61e56.jpg

[FatTulip]

It's possible if the interference occurs when other processes are going on. A ProXP system is no better at handling queues than Home.

If you have a USB keyboard then it's more likely. I don't know for sure, but I'd bet that the most common time FS2002 crackles and pops is when you accelerate up the runway whilst ATC is talking. This is because sound, video and most likely the USB are all fighting for a place.

[Qballbandit]

Personally - just in my case, it is only when I type. And I type alot using 767PIC's fmc. Keystrokes are my killer and I can't figure out why..:7

http://www.flightsim.com/dcforum/User_files/3f295fda5ad61e56.jpg

[mattius]

Upgraded to Audigy 2 Soundcard. Fixed all problems!

[beana5]

Hi , Iam starting to get the same problem. Iwanna get this Audigy2 soundcard. Trouble is i dont know the mfg, name,model, price, and supplier? Can ya steer me in the rite direction? Would be most grateful.Thanx mattius, or anyone for that matter. "MERRY CHRISTMAS"
VIN AKA beana5;-)

[wsieffert]

What driver version are you using for the CM8738? I use cmi8738...v0644.exe that I obtained from CMedia - www.cmedia.com.tw . However, they don't support the CM8738 anymore. I believe the Microsoft website has v0643 on their WinXP update site.

You will not be able to change the IRQ on your system if ACPI has been installed (default Windows installation). I share the on-board sound, graphics card, and on-board network card on IRQ11 with my Soyo Dragon+ MOBO and have no problems. I agree that separate IRQs would be better but that is the hazards of having the on-board peripherals.

If you would like the v0644 drivers, contact me via your real email address. The file is 3.3MB so make sure your ISP allows that size file. Otherwise, download the v0643 driver from Microsoft Windows Update site.

W. Sieffert

[beana5]

Well heres what i did, 1st i deleated every thing, no more problem,no more sound. Reinstalled w/new driver. Same problem?? What if, i said to myself, i re installed FS2002?? Idid ,FS2002 worked just great. What if i uninstalled FS9, not clean, but deleated?? I did,Then i reinstalled FS9, and no problem,it was gone! Now i use two FSsims. By the way the FS2002 verson is still a great program. You may deduce by reading this that i dont know what in sam hill i am doing, your rite, Dumb luck! But i dont got that problem no mo! And i saved some $$$$! Iam sure others with ryme, reason, logic, and a great tech experance can and will explane this?? By the way the poping and puting was also affecting the F/Rs, each pop, the F/R would go from35-45 done ,to 06-08??///
Thanx anyway "HAPPY NEW YEAR TO YA!" VIN
:-hmmm ???????