🚀 go-pugleaf

Just a really wild guess.  Some video boards (I don't know about yours)
map their memory somewhere above the top of RAM.  Like between 16-32
MB.  So perhaps now that you have all this ram in the area, something
that uses it occasionally is getting conflicts with video addresses. 
Check the video boards manual/read-mes.

 [My Basis for this thought:  I've got an older ATI video board that did
just that (or would have, If I had that much RAM).  In my case, I
addressed its memory up above 128 MB.]

Bas Bekker wrote:
> 
> I have a problem with my computer and I think is related to my Adaptec
> SCSI controller and my memory.
> 
> Problem description:
> During a back-up or restore with Central Point CP Backupwith 2.0 for
> Windows, my machine freezes or the tape drive suddenly stops. Things
> started after I upgraded my memory from 16 Mb to 32 Mb. Once, I was
> editing a several Mb graphics file, when the status light of DAT
> streamer started blinking a few times. Also, I heard the CD-ROM player
> trying to start. This happened a few times while editing this file. Alle
> my other devices seem to work properly. By removing 16 Mb, the hang-ups
> disappeared.
> 
> Questions:
> I there an address conflict between the additional memory and the SCSI
> controller causing these hang-up's? Is there a way to prevent this by
> configuring Win95 or my BIOS? If not, which amount of memory will not
> disturb my machine?
> 
> Software: MS Windows 95.
> 
> Hardware configuration:
> Vesa local bus 486/DX266 motherboard with AMI BIOS (date 06/06/1992),
> 32 Mb memory,
> Adaptec Altra Line AVA-1515 SCSI controller (IQR 11, I/O port
> 350h-35Fh), connected to the adapter are a HP1534A 4mm DAT tapestreamer
> and a Panasonic CR504B CD-ROM drive.
> Tseng Lab ET4000 1 Mb videocard,
> Multi I/O controller with floppy and hard drive adapter, two 16550 COM
> ports and one LPT port (standard IRQ's and I/O ports), a 14k4 external
> modem connected to COM2,
> 2 Western Digital Caviar hard drives (no LBA or boot patches),
> Creative Soundblaster 16 ASP soundcard (IRQ 5, DMA 1 and 5, I/O port
> 220h and 330h -MIDI-) with a joystick connected to it,
> NE2000 compatible ethernetcard (IRQ 10, I/O port 300h).
> All are 16 bit ISA cards.
> 
> Can anyone help me with this problem   :-/
> 
> Bas Bekker.