Announcement

Collapse
No announcement yet.

BEWARE: AGP Aperture > 64 Mb may cause lockups/crashes

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • BEWARE: AGP Aperture > 64 Mb may cause lockups/crashes

    Just a quick warning to anyone setting the Agp Aperture to > 64 Mb.
    I forgot I increaded it past 64 mb the previous and was getting crashes in UT after about 20 seconds.
    Slave Zero demo refused to launch at all.
    Suffering from a cold and playing some Q3A (which didn't lock up) I forgot that I had changed it and spent a few frustrating hours trying to find the problem (duh, i know).

    Just thought I'd spare anyone else some grief.

    gpk
    P.S. Is it me or is UT better than Q3A !?


    p3-450@504
    g400-32 Mb vanilla @115% OC
    Diamond Mx-300 w/ Cambridge 4 point suround
    14 Gb Ibm 7200 Rpm HD + 13 Gb Quantum KA 7200 RPM HD
    Optiquest V95 19"
    Cable modem ( poor hpbs )

  • #2
    I can confirm this.

    I've had multiple Win98 crashes in Explorer, Internet Explorer, and Outlook Express with AGP aperature set to 256MB. I don't have those crashes with the aperature set to 64MB.

    ------------------
    System specs (well, everyone else is doing it!):

    Asus P2B-F motherboard
    Pentium III 450, no overclock
    G400MAX/32DH, no overclock
    192 MB PC100 RAM
    SB Live Value
    Hauppauge WinTV PCI
    ReelMagic Hollywood+
    USR 56K ISA
    Win98 SE
    System specs (well, everyone else is doing it!):

    Asus P2B-F motherboard
    Pentium III 450, no overclock
    G400MAX/32DH, no overclock
    256 MB PC100 RAM
    SB Live Value
    Hauppauge WinTV PCI
    ReelMagic Hollywood+
    USR 56K ISA
    Win98 SE

    Comment


    • #3
      ADDENDUM: I forgot to list my complete system specs (this damned cold!)

      Asus P3B-F
      p3-450@504
      128 MB pc100
      g400-32 Mb vanilla @115% OC
      Diamond Mx-300 w/ Cambridge 4 point suround
      14 Gb Ibm 7200 Rpm HD + 13 Gb Quantum KA 7200 RPM HD
      Win 98 SE
      Optiquest V95 19"
      Cable modem

      Comment


      • #4
        my Abit BE6 doesn't do this
        jim

        ------------------
        PIII-500mhz @ 620 ! with an Abit BE6 mobo
        128mb pc-100
        Mill G400 (YAHOO!!!) 32mb @ 167/208 with MGATweak-417mhz, (2.5, 2, 2.5), PD 5.41 & bios 1.5-22
        Maxtor 14.3 gb Uata66 hdd
        SB Live!
        Winblows 98se & DX7
        32 lbs. of fans, heatsinks and aluminum ductwork
        3DMark Result 5954.69 3DMarks
        Synthetic CPU 3D Speed 9325.69 CPU 3DMarks
        Rasterizer Score 2791.72 3DRasterMarks
        Game 1 - Race 65.07 FPS
        Game 2 - First Person 54.89 FPS
        Fill Rate 268.79 MTexels/s

        System 1:
        AMD 1.4 AYJHA-Y factory unlocked @ 1656 with Thermalright SK6 and 7k Delta fan
        Epox 8K7A
        2x256mb Micron pc-2100 DDR
        an AGP port all warmed up and ready to be stuffed full of Parhelia II+
        SBLIVE 5.1
        Maxtor 40g 7,200 @ ATA-100
        IBM 40GB 7,200 @ ATA-100
        Pinnacle DV Plus firewire
        3Com Hardware Modem
        Teac 20/10/40 burner
        Antec 350w power supply in a Colorcase 303usb Stainless

        New system: Under development

        Comment


        • #5
          Abit... Pffffff... ;-)))

          My SOYO doesn't do that either.

          Cya



          ------------------
          Celery 366 OCed @ 458(83), Soyo 6BA+III, 64MB SDRAM, Millennium G400 DualHead (486 cpu fan), SB Live! Value, FBall KA 13.1Gig (7200rpm), Mitsumi CR-4804TE CD-RW, Intel based 21140 10/100 NIC, Nortel Networks HSA1300 1-meg ADSL modem and also a ModemBlaster DI5630... enough!


          --
          Gilles Lalonde
          SysAdmin (.RPM)
          Linkedin

          Comment


          • #6
            Well, see... in theory the AGP aperture should only be set to half your total memory. Because setting it higher means AGP could request up to your whole system memory - or more!

            BUT... many motherboards don't correctly implement AGP aperture, (ABIT included, *groan*), and therefore Exhibit strange behavior if you don't set it high enough.

            It also is largely dependent on the drivers.

            I have been extremely lucky in that my ABIT board(s) have always been very happy with my G400 (BH6, BX6, BX6v2, BE6 - I've had 'em all in the past 9 months) and an aperture set to 128MB (half of my 256MB total).

            But please don't advise people to turn DOWN their AGP apertures, as turning this setting UP to 256MB is one of the first (and most effective) troubleshooting steps we tell people to take.

            And it works, for most motherboards. It seems you people have something in common - ASUS motherboards. Maybe we should test further and amend our recommendations when people have ASUS's.

            - Gurm

            ------------------
            Listen up, you primitive screwheads! See this? This is my BOOMSTICK! Etc. etc.
            The Internet - where men are men, women are men, and teenage girls are FBI agents!

            I'm the least you could do
            If only life were as easy as you
            I'm the least you could do, oh yeah
            If only life were as easy as you
            I would still get screwed

            Comment


            • #7
              I will also second the topic.

              I too experience problems with my agp aperture set > 64 Mb; GPFs, crashes, and random lockups. With it set at 64 I'm as stable as can be. I've got 128 Megs of RAM.
              Millenium G200 8 Meg (SDRAM) 2.6 - 20 bios; 350 AMD K6-2 on a VIA MVP3 with latest bios; 128 Meg SDRAM; 8.4 Maxtor;

              Comment

              Working...
              X