I have an old Motherboard with the amd 756 chipset, this came from a gateway system. 600 athlon cpu and 320 megs ram I have one AGP 128 ati rage card and one pci creative sound card. Everything runs fine UNTIL I try to fill another pci slot, I've tried several diffent cards and slots. Every extra pci card caused the same result nomatter what slot or typr card: The computer boots fine no beebs or cmos errors but after the win98 logo pops up the computer reboots and starts the cycle again. I have the amd chipset drivers, the cmos setting have been set back to default. What am I missing here? could it be a lack of proper power?

First guess is IRQ conflict. At POST press pause and see what IRQs are assigned to what. If the windows logo is blocking your view, disable it by putting this line in your msdos.sys ;logo=0 M2

Definitely IRQ, you're sound card is a major resource hog and seeks DMA and interupt requests across many ports and addresses. Adding another card causes the system to protect itself by rebooting, the new cards are overwhelming the system resources. Is IRQ steering enabled ? Another guess is that your motherboard chipset doesn't support the AGP type cards. Try this. Power down If you have any SCSI devices like a scanner or printer, remove them. Remove the sound card from it's slot leaving only the video. Power up and see if you can boot beyond the Splash Screen. If you can get past the splash screen power down again and add the sound card. Hopefully, Windows will configure the card. Go to System resources in System Information and click the plus box under "Hardware Resources". This is the barebones setup,look carefully to see what IRQ's and Ports are being used and then try configuring your extra devices one by one. Make sure the drivers for all cards and devices are updated.

Thanks for the info, I have tried what you mentioned before but with no results. Yes as far as I know IRQ sterring is on atleast thats what I see under device manager. It WILL boot in safe mode though. I can have a agp video and pci sound card now with no problems, but IF I try to install a modem or any other pci device it reboots. I even tried removing the Agp card and just having one Pci video card this work aslong as I used the one working pci slot (3rd down) booted fine, but when the sound card or modem was install it rebooted? Trust me I've tried every combo and booting with cards, I'm just wodering what I missed in windows or bios.. This is mystery?

Hi, I've got a somewhat similar situation. Not the reboot thing, but all thses in IRQ11 modem sound USB video NIC Everything 'works' but the sound is sometimes affexted by the modem activity. I' dreading facing up to a reinstall. But I think what it will take is to go into BIOS and set the IRQs to manual. BTW, I suppose you have ACPI enabled, right? M2

Do you have any Legacy Hardware? If any of the cards are non PNP, they will not be mapped to PCI busses, they will be mapped to older ISA busses and will not appear in you IRQ list.(If the device doesn't appear, it's not recognised by PNP software detection in Windows,but will still conflict) In that case, you will have to maually set the cards in BIOS to recognize the card or hardware as a legacy device.

Also, is the latest BIOS installed for your mobo?