DeadToad

This PC works fine with the STB Lightspeed 3300 3Dfx Voodoo Banshee chipset 16MB SDRAM AGP Video card and (3) 128MB PC100 SDRAM DIMMs.
But, if I install a Pines TnT2 nVidia chipset 32MB SDRAM AGP Video card, the PC boots to a blank screen after the Windows logo, or boots to Windows with the cursor hanging, or boots to Windows without any icons on the desktop with the cursor hanging, etc.
If I remove (2) 128MB SDRAM DIMMs (in any 2 slots), and leave (1) 128MB SDRAM DIMM (in any slot) the PC boots fine.
With 2 or 3 128MB SDRAM DIMMs, the PC goes ape!
Obviously there's a conflict with the nVidia 32MB AGP card and the memory slots.
Does anyone have any suggestions, as I'd rather use the nVidia 32MB card than the 3Dfx 16MB card?
Thanks for any and all assistance.

PC specs:
WINDOWS 98 Second Edition with all updates applied

MOTHERBOARD: #SPS-MBM-S71 Board: MVP3-586B-W83877TF
VisionTop/Xcesstech S7-MVP3 Super Socket7, 64-bit ATX, 2X/AGP Port, 100MHz FSB, 1MB Pipelined Burst SRAM Cache
Chipset: VIA Apollo MVP3 66/75/100MHz Front Side Bus Chipset.
Chipset VT82C598AT system controller (476 pin BGA) & VT82C586B PCI to ISA bridge (208 pin PQFP)
BIOS: Award Modular BIOS v4.51PG 03/25/99

CPU: AMD K6-2/450MHz 3DX 3DNOW! MMX PC100 BUS CPU

CPU FAN: ARX "CPU Cooler" Socket7 ball bearing Cooling Fan w/heat sink & Thermal Gel

RAM: 384MB Total
(3) Crucial 128MB 168-pin DIMM 16Mx64 8ns 3.3V PC100 SDRAM Unbuffered Non-parity DIMM

HDD: (FAT32)
C:\ Maxtor 17.4GB 7200rpm UDMA/66 E-IDE HDD

FDD: Samsung 1.44MB 3.5" Floppy Disk Drive

CD-ROM DRIVE: CyberDrive 321D 32Xmax Atapi IDE CD-ROM Drive

CD-RW DRIVE: HP CD-Writer 9510i C4503A MYBG5G5Z2A 12x8x32x Multi-Read 4MB/Buffer IDE Drive

VIDEO CARD: STB LightSpeed 3300/3Dfx Voodoo Banshee 128-bit 3D 1X AGP RAMDAC 16MB SGRAM Video Card

LANcard: Intel GD82559 PCI 10/100+ Alert on LAN* Ethernet Adapter Network Card

MODEM: Actiontec 56K/V.90 PCI Pro PCI56019-01 56Kflex Lucent FAX/Data/Voice/Speakerphone Windows Modem

SOUNDCARD: Yamaha YMF-719e-s OPL3-SAx 16-bit 128-Voice 3D WaveTable ISA Stereo Sound Card

MOUSE: Microsoft Wheel IntelliMouse PS/2 Compatible

KEYBOARD: Fellowes KB-2961 PC 1.0 104-Keyboard IBM PC-AT, PS/2 Standard Windows Compatible

CASE: TigerDirect OEM 6-Bay AT/ATX Mid-Tower PC Case w/extra 80mm 12volt Front Case Cooling Fan

CASE FAN: ARX 80mm 12volt ball bearing Front Case Cooling Fan in Rear

POWER SUPPLY: Maxpower 300Watt ATX Power Supply

OldGrayGary

Hi Dead Toad

Those two video cards use different versions of AGP. The STB LightSpeed is an AGP 1x (rare bird nowadays), and the Pine TNT2 is an AGP 2x card (also pretty rare -- and truthfully, Pine was a so-so bargain-basement brand: the card may be faulty). If the motherboard can handle both AGP versions, you'd still likely have to specify which AGP version you wish to use in a Bios setting. There aren't any manuals easily available for such an old motherboard: so your best bet will probably be simply to enter Bios Setup and have a look around.

Best of luck
. . . Gary


P.S. --- there's not going to be much difference in performance between the two cards, when running everyday programs in Windows 98. Only games from that era will run well on such a legacy system - not many needed much more firepower in 1998. So your easiest path is simply to leave the STB in.