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G400Max's stable at 120mhz FSB???

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  • #1

    G400Max's stable at 120mhz FSB???

    I'm waiting for my G400Max to arrive. I want to o/c my system but have always heard that agp video cards are a big limiting factor... How are the G400Max's with a FSB at 120mhz?

    P3 500 (to 620 hopefully)
    Asus P2B-LS
    256 PC133 HSDRAM

    Thanx,
    Jeremy
    Tags: None
  • #2
    That's quite an ambitious overclock! You must have that thing on a Peltier either that or you're running your system in your freezer

    I have a P3500@580 with the 115FSB and have no problems. Good luck with getting it going.

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    • #3
      Ha!!! No cryogenic system, but the MC1000 is an active peltier cooler that keeps the chip between -4 and 12 degrees C. Now that's freezing the chip. And since I bought retail box, I'm not worried about breaking the processor (not over jucing, just staying @ 2.0v). The system runs fins at that speed, just hope that G400Max will take it...

      Jeremy

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      • #4
        anyone else with info???

        Comment

        • #5
          Well, I'm still waiting for my G400Max (argh - shoulda spent the bucks and pre-ordered from Matrox back in May when I placed my order with another company! - Oh well, it will get here sooner or later)...

          However, I do have a Matrox Mystique G200 running in my AGP bus with my FSB set to 133 and the divider for AGP = 2/3 or 89Mhz. I can succesfully force it to AGP 2X, but it doesn't help that much. Only hitting 4160 in the 3DMark99Max @ 640x480-16bit and about 9567 in the CPUMarks.

          Guyv

          ------------------
          Running an ABIT BE6, PIII-450 @ 600Mhz, 128MB (128x1) PC133HSDRAM (running @ 133), Matrox Mystique G200 8MB, SBLive! Full Retail, Adaptec AHA-2940UW (Dual Channel)
          All kinds of other SCSI and ATAPI goodies....
          -------------
          Waiting for my G400Max Very Impatiently, Having already maxed system performance to give it a good home.....

          Gaming Rig.

          - Gigabyte GA-7N400-Pro
          - AMD Athlon 3200+ XP
          - 1.5GB Dual Channel DDR 433Mhz SDRAM
          - 6.1 Digital Audio
          - Gigabit Lan (Linksys 1032)
          - 4 x 120GB SATA Drives, RAID 0+1 (Striped/Mirrored)
          - Sony DRU-500A DVD/+/-/R/RW
          - Creative 8x DVD-ROM
          - LS120 IDE Floppy
          - Zip 100 IDE
          - PNY Ultra 5900 (256MB)
          - NEC FE950
          - DTT2500 Cambridge Soundworks

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          • #6
            Hi,

            I don't think cooling will solve your problem since an overclocked FSB has no effect on the G400 chip's frequency but it affects the frequency at which the AGP works. This bus is really sensitive to overcloking. Its standard does not allow any frequency higher than 66MHz. So an FSB of 120 MHz will cause it to run at 120x2/3 which is 80MHz. This however is not the case in i820 motherboards since they originally support an 133MHz FSB. Such motherboards have not hit the market yet though...
            PC Power and Cooling Deluxe Chrome Tower case and 300W ATX Power Supply, Dual Slot1 440GX AMI MegaRUM II motherboard, 128MB of ECC 100 MHz SDRAM, PII 450 MHz, Matrox G400 MAX, Seagate Cheetah 9,1GB @ primary SCSI Ultra2 Wide controller, Hitachi 4x DVD-ROM, Panasonic (Matsushita) LS-120 Drive, Terratec EWS64XL sound card.

            Comment

            • #7
              Most people haven't had problems with the overclock of the FSB, in fact the G200 will run at 100MHz FSB at 1/1 although it appears by a few posts that the G400 is not quite as forgiving. It will however, apparently handle 83MHz FSB at 1/1 so your 120 at 2/3 (80MHz) should be fine.

              ------------------
              BH6 450A 128MB CW7502B CDR SR8583 DVD SBlive! Value Hollywood + AL320N USR Sportster etc. Oh, 8MB G200 Mystique too!

              Office: Giga266A, XP1900+, 1GB PC2100. 80GB Maxtor, Matrox G550 Integraph 21", Sceptre 19"
              Home:#1.Abit IS7, 512MB OCZ DDR 533, P4C2600 at 3260, LiteOn 411S DVDRW, LiteOn 481248 CDRW,WD 80G ATA100, Audigy, 2X IBM P202, Radeon 9600 Pro as well.
              #2. TB 1.33G/KR7AR133/512MB PC2100. MSI GF4-4200TI, Maxtor 13.6/40G drives/Ricoh 121032 CDRW, Hitachi 8X DVD, AOpen 52X. etc.
              #3. P3-700-512MB/BX6R2/GF2MX400/
              etc. #4,#5 Various P2 with G400, G200.

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              • #8
                I have a G400 32MB and I OC it to 165/220 on my crappy celery 366/OC458.. So I am running a FSB 83MHz.. and I consider that's a really stress for the AGP bus but so far I haven't had any problem with it. So I think the G400 Max should handle the FSB 120MHz pretty easy.

                Of course, result might vary but Good Luck.

                Comment

                • #9
                  Since I've not had an agp graphics card before, I wanted to know how you were changing the agp ratio from 1:1 to 2:3 and whatever other choices there are. What does the agp port run at(mhz)? Is there a video performance loss when you o/c the chip and but use a 2/3 ratio?
                  This part (agp) is new to me... guess I need a rudamentory lesson, lol!

                  Thanx for the help,
                  Jeremy

                  Comment

                  • #10
                    AGP is designed to run at 66MHz.
                    So at an FSB of 66, it runs at 1:1
                    At an FSB of 100, it runs at 2:3

                    Some mobos do this automatically, some have a jumper or BIOS setting you can adjust yourself.
                    Core2 Duo E7500 2.93, Asus P5Q Pro Turbo, 4gig 1066 DDR2, 1gig Asus ENGTS250, SB X-Fi Gamer ,WD Caviar Black 1tb, Plextor PX-880SA, Dual Samsung 2494s

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                    • #11
                      Well, I have an OEM G400 running on a FSB of 124! so 120 will present no problem. I had a G200 running on 112MHz, because the AGP divider on my mobo didn't work. I "Upgraded" to a TNT, and couldn't get it to run at 100MHz, let alone 112. Speaks bucket-loads on quality manufacturing!

                      P3 450 @ 558, what a bargain!
                      G400 OEM @ 188 Memory What a bargain.
                      Can't wait till the MAX hits stores down here in Australia, come late September!

                      Comment

                      • #12
                        My MAX is running on a 129 MHz fsb. My PIII 450 is at 581 on an ABIT BX6-2. The MAX is overclocked to 245 MHz Memory clock with the newest Powerstrip.

                        No problems - stable

                        B

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                        • #13
                          Brian: 184/245? yikes! That should kick serious butt Could you post some 3dmark results at 1280x1024x32 or 1600x1200x32?

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                          • #14
                            I don't know what the hell I'm doing with this 3DMark. Anyway, I got 2668/9016 at 1600x1200 and 3776/8894 at 1280x1024.

                            B

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                            • #15
                              Sorry, the above results were with 32 bbp

                              B

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