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Thread: FSB won't run at 133 mhz




  1. #11
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    Perseus and SegiY, what PSU do you have? I have the Antec 350w. Did you use thermal grease or the retail tape that is on the HSF? I'm using the retail tape, sorry I don't know the correct name for this, but have bought Arctic Silver 3 and will be trying this before sending it in. Don't know if it will make a diff but at least its something else to try and I'll be able to reseat the processor too and maybe that will help. I'm seeing people with this problem on lots of different sites, just earch google. The only common is the AMD XP processor.

    [Edit: Scratch that. I just found out that the thermal grease will void my warranty.]

  2. #12
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    I use Enermax 300W... hope that helps

  3. #13
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    Quote Originally Posted by perseus
    I use Enermax 300W... hope that helps
    Leave your computer off for like 5-10 mins so that is cooled off. Then change the jumper to 133 and boot it up, see if it goes into Windows. If so, see if it reboots itself after a min or two. That is what mine does.

  4. #14
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    I'm using a codgen 450W dual fant PSU, it should hold the load, all the readings are good.
    I can run for a while on 133fsb, but it eventualy crashes, especaly on things like 3Dmark2001se
    Athlon XP 1600+ @ 1662Mhz | Volcano 7+ HSF | Soltek SL-75DRV5 | 256MB Corsair XMS-3000 DDR RAM | 44x44x24 Yamaha CDR-W F1 | 16x Liteon DVD | 40Gig 7200rpm Seagate Barracuda | 20Gig 5400rpm Seagate | GeForce2 MX-400 | SB Live! | RTL8139A NIC | RTL8139B NIC | 12 Fans | 1 x ss Blue cc | 2 x Red Neons | 450W Codgen PSU | Logitech Z-340 2.1 Sub and sats | 17" Osborune Monitor | Win XP Pro | M$ explorer rat and keyboard | Everglide Attack Optical

  5. #15
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    Quote Originally Posted by perseus
    Although it says 266 FSB I can assure you that it only runs at 100 or 133 mhz. Also, I looked for the clock multiplier again in Bios and couldn't find it.
    The FSB is 133. The 266 is your RAM. DDR 266 supports bandwith up to 2.1GB per second, PC2100 RAM. DDR 333 supports bandwitch up to 2.7GB/second, PC2700 RAM.

    You can't adjust your multipler in bios, you have to unlock your CPU. We have no need to worry with this though cause we can't even get it to run at 133, no need to try going higher. :rolleyes:

  6. #16
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    I was referring to their website FICA AD11 There it says the FSB for my mobo is 266 (I have the 1500+ - 1800+)

  7. #17
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    I replaced the motherboard with an Epox 8K5A2. Problem fixed! :thumb:

    I'm not understanding the 133/266 thing. Can someone explain to me how FSB 266=133 and 200=100?

  8. #18
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    Now this is fairly easy, the FSB is running at a true 133MHz but because it is double pumped each cycle is delivering 2 pieces of data per cycle(each 1MHz) this effectively doubles the rate to 266MHz.
    With a P4 and their quad pumped FSB (4 pieces of data per cycle) this effectively turns a 100MHz FSB into 400Mhz and 133MHz into 533MHz. ;)
    <center>:cheers:</center>

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