CompuServe Thread

#Memoryproblem

5 messages in this thread
#173111From: Thomas JaegerJun 1, 1995 2:32 PM
Hi all I have 32 MB in my 486 /ISA PC installed, but 3DStudio only use the first 16 MB. In the the system setup I hve explizit mentioned to use the complett memory. Someone told me my ADAPTEC 1542C would limit the memory to 16 MB in the ISA bus . Is it correct ? Any tip for me ? thanx Tom
#173248From: Ted BoardmanJun 2, 1995 8:18 AM
Thomas The Adeptec shouldn't have anything to do with the ram. In config.sys you may need a line in your memory manager (emm386.sys or qemm.sys) that reads emb=32768 in order to use more than 16 meg. Hope that helps some. TedB -Ted Boardman !^NavFont01F0007MGHHGBB7D8B
#173422From: T-Spect LeJun 2, 1995 11:05 PM
> Someone told me my ADAPTEC 1542C would limit the memory to 16 MB in the ISA bus . < Recalling from pure brain memory, I think that's just the SCSI's internal addressings since your card is a bus-mastering type. (This was referenced off the Adaptec EZ-SCSI 3.1 docs. Re-read it if you could) It seemed that your motherboard doesn't like more than 16 Mb (?) I have multiple PCs and only have that one antique ISA card installed as of your and it works fine. There are absolutely no memory addressing problem. As long as you're using HIMEM.SYS (or other stated in the Installation booklet), it should address all of it with out a hitch. The only problem I have w/ 3DSr4 is the avaibility to address more than 64 Mb RAM! You then have to use QEMM 7.5 to utilize it.
#173436From: Thomas JaegerJun 3, 1995 8:23 AM
Hello Thanx for your answer. I can't explain it actually, but if I remove HIMEM.SYS and EMM. SYS I can use all my installed memory (32MB) in 3DS4. I think this behaviour depends in some aspect of the Pharlap Dos Extender. I don't know. But it works now … Bye Tom
#173459From: david W. mennenohJun 3, 1995 11:49 AM
Well, whatever it was it wasn't HIMEM. You should try putting that back in and see if it still works. EMM is most likely the culprit. I try not to use EMM at all unless I really need more conventional memory. Glad you can see all of your RAM now though. DM