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strange experience with overclocking

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  • strange experience with overclocking

    Hi.
    A few days ago I posted a message about some annoying graphical errors in Quake3. Using the new turboGL driver I got dotted white lines all over the screen in certain parts on almost all maps. There was another person (I'm sorry, I forgot the nick name) who experienced the same thing but it probably is not a common problem.

    Recently I experimented with overclocking, I have a Celeron433 which is running at 488Mhz right now (bus speed at 75Mhz). The really strange thing is: Since I've set the bus speed to 75Mhz the dotted lines have disappeared !

    Well I'm both pleased and confused by this curiosity. I remember the other guy I mentioned was overclocking his CPU too but but that did not affect the graphical errors on his system. So I wonder if someone can enlighten me with an explanation to this ? I always thought that overclocking might lead to artifacts and errors. Well in my case it fixed them pretty well .

    My System: Celeron433@488, Matrox G400 32MB Ram, Soundblaster Live, 128 MB Ram, Asus P2B motherboard.
    The shortest distance between two points is under construction.

  • #2
    Thank you all for replying.
    According to the PCI list tool my AGP port is running at 2x mode with both 66Mhz and 75Mhz bus speed.



    ------------------
    The shortest distance between two points is under construction.
    The shortest distance between two points is under construction.

    Comment


    • #3
      I guess those dots appeared while using an FSB of 66.6MHz ...

      Now that you bumped up your FSB, it's most likely that the drivers switched back to AGP1x and if you don't see those dots anymore, it was probably a result of using AGP2x ...

      Try PCI list from www.entechtaiwan.com to get a readout of your actual AGP mode and if possible, clock back your FSB and check that AGP mode also.


      ------------------
      Cheers,
      Maggi
      ________________________

      Working Rig:
      Asus P2B-DS @ 100MHz FSB
      Double Pentium III-450
      4 x 128MB CAS2 SDRAM
      Matrox Millennium G400 32MB DualHead
      Eye-Q 777 (22" with 127kHz) on primary VGA
      Nokia 445Xi (21") on secondary VGA

      Home Rig:
      Asus P2B-S Bios 1010 @ 100MHz FSB
      Celeron 333A @ 500MHz
      2 x 128MB CAS2 SDRAM
      Matrox Millennium G400 32MB DualHead @ 150/200MHz
      CTX VL710T (17")
      and a brand new Pioneer 303S SCSI-DVD

      Despite my nickname causing confusion, I am not female ...

      ASRock Fatal1ty X79 Professional
      Intel Core i7-3930K@4.3GHz
      be quiet! Dark Rock Pro 2
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      2x MSI N670GTX PE OC (SLI)
      OCZ Vertex 4 256GB
      4x2TB Seagate Barracuda Green 5900.3 (2x4TB RAID0)
      Super Flower Golden Green Modular 800W
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      LG BH10LS38
      LG DM2752D 27" 3D

      Comment


      • #4
        Using the Matrox overclocker I would too get the random white dots in Q3 if I set it too high.

        Actually, I found 107% to be the highest stable setting at 800x600 for my G400 MAX otherwise I get the white dots, even if rarely.

        This is on a P3-500, CPU not overclocked. AGP is always 2x.

        Comment


        • #5
          yep, those white dots are dropouts caused by your memory being exceeded ...
          Despite my nickname causing confusion, I am not female ...

          ASRock Fatal1ty X79 Professional
          Intel Core i7-3930K@4.3GHz
          be quiet! Dark Rock Pro 2
          4x 8GB G.Skill TridentX PC3-19200U@CR1
          2x MSI N670GTX PE OC (SLI)
          OCZ Vertex 4 256GB
          4x2TB Seagate Barracuda Green 5900.3 (2x4TB RAID0)
          Super Flower Golden Green Modular 800W
          Nanoxia Deep Silence 1
          LG BH10LS38
          LG DM2752D 27" 3D

          Comment

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