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  • SharkyForums.Com - Print: Can I skip the 'pencil trick' and just FSB-OC?

    Can I skip the 'pencil trick' and just FSB-OC?
    By florrb March 08, 2001, 06:28 AM

    Since the KT133A boards have such flexible FSB, could I just get a 700 T-bird and run it at 7x133? Has anyone done this?

    I've been reading the boards and it seems the 'pencil-trick' isn't perfect-the graphite can wear off. I've also noticed some complaints about boards getting finicky about mutiplier adjustments, especially the Iwill.
    When reviewers talk about getting the FSB up to 150DDR, is that running the entire system, including peripherals? I had understood that overclocking could strain the PCI bus to the point where THAT was crashing.
    My budget is SEVERELY limited-about $800 for a system w/o monitor, so even the price difference between the 700 and 900 is significant for me.

    By ericsson March 08, 2001, 07:03 AM

    yep...i have an epox 8KTA3 here and i just set the fsb jumper from 100-124 to 133-166. worked fine at 6X133. also tried 6X150...still works. =)

    By scott March 08, 2001, 07:25 AM

    sure you could try that, but 700 to 930 is a fairly big jump and who knows if it would work. better to unlock IMO, if you dont you will be SEVERELY limited, and there are a couple of more permanent ways to unlock, but the pencil trick seems to work. i was reading an article at tomshardware and they said putting tape(cellophane i would guess) will preserve your penciltrick. anyway, good luck- and you should be able to build a pretty nice computer with 800 bucks

    By DoGGx23 March 08, 2001, 07:55 AM

    Yes you can... I actually lowered the multiplier for my cpu. I also have a Duron 700 mhz and a KT7a. I set my multipliers at 6.5 x 145 FSB running stable and fast.

    By InFlames March 08, 2001, 09:09 AM

    If you oc the FSB and lower the CPU multiplier, you still have to unlock the CPU. You can bypass the unlocking procedure IF AND ONLY IF the only modification will be in FSB - but jumping from 100MHz to 133MHz without a lowered CPU multiplier is a very hefty OC. I wish you luck.

    By rocky98 March 08, 2001, 09:25 AM

    Give it a try. I just overclocked my TBird 750 to 1G (MSI K7T Turbo - 7.5X133). It's been running stable the last couple of days at 48c full load.

    Good Luck.

    By The WhiteRabbit March 08, 2001, 09:43 AM

    Keep in mind that if you choose your motherboard carefully, you don't have to make the jump from 100 MHz to 133 MHz all at once. If your CPU can't handle that much speed, you can just try lower FSB settings until you find out where it is stable.

    Unlocking the multipliers is just nice because it gives you more options.

    By florrb March 08, 2001, 10:02 AM

    I've seen a lot posts about people using 7x133, and the overclockerz store is selling Durons guaranteed to hit 980 for what looks like the price of a 700 Duron. Tom's Hardware claimed that his first three-onlocked-Durons all hit 950 for him. Since then, the review sites have gone silent on the subject. Sharky's hasn't reviewed many KT133A boards(if any), and has made almost NO mention of plugging still-locked cpu's in to try the %33 overclock-one review mentioned that it worked with one Duron out of four that were tried (a 600 to 800), but NO detail about which ones failed, or what was tried before giving up.

    By scott March 08, 2001, 10:18 AM

    quote:Originally posted by florrb:
    I've seen a lot posts about people using 7x133, and the overclockerz store is selling Durons guaranteed to hit 980 for what looks like the price of a 700 Duron. Tom's Hardware claimed that his three first, onlocked, Durons all hit 950 for him. well sure, their Durons. you asked about a 750 t-bird in your original post did'nt you. what's your point, sounds like your confused.

    By Zenak March 08, 2001, 10:23 AM

    quote:Originally posted by florrb:
    I've seen a lot posts about people using 7x133, and the overclockerz store is selling Durons guaranteed to hit 980 for what looks like the price of a 700 Duron. Tom's Hardware claimed that his three first, onlocked, Durons all hit 950 for him.

    Why waste the cash for a cheezy duron at that speed. Get a PIII 650e for nearly the same price. They are about $100 bucks and will hit 866 - 900 without peltier. ANd will score faster. If you are on a budget that is. Without a budget go for the thunderbird 1.2 remember that y ouwill want to upgrade in a year or so always think foward.

    By ~*hd*~ March 08, 2001, 10:23 AM

    In that article they had changed the multiplier.

    As Whiterabbit said, if your Mobo allows you to increment your FSB alittle at a time, try going up by one at a time. It is a slow process but by virtue this will allow you too see which is the most stable speed you can run at. If you start to see artifacting or minor problems then back it down until the problems disappear.

    By florrb March 08, 2001, 10:53 AM

    Going up incrementally was part of my plan-that's why I empahsized FLEXIBILITY.

    As for being confused about Duron vs T-bird, is the T-bird LESS overclockable than a Duron? The reason I want the speed is for Falcon 4.0, and I thought I saw a review that said it's one program that likes the extra cache. On the other hand, the difference between Overclockerz guaranteed T-birds vs guaranteed Durons is about the difference between 128 and 256mb of RAM. Anybody here know that sim or have an opinion which combo is better(Duron w/256mb or Tbird w/128)?
    $800 doesn't look like a hell of a lot once I start looking at shipping charges and tax! The reviewers guides never seem to factor that in

    By Subnova March 08, 2001, 12:28 PM

    quote:Originally posted by florrb:
    Since the KT133A boards have such flexible FSB, could I just get a 700 T-bird and run it at 7x133? Has anyone done this?

    I've been reading the boards and it seems the 'pencil-trick' isn't perfect-the graphite can wear off. I've also noticed some complaints about boards getting finicky about mutiplier adjustments, especially the Iwill.
    When reviewers talk about getting the FSB up to 150DDR, is that running the entire system, including peripherals? I had understood that overclocking could strain the PCI bus to the point where THAT was crashing.
    My budget is SEVERELY limited-about $800 for a system w/o monitor, so even the price difference between the 700 and 900 is significant for me.


    Yes...do it and tell us how it goes...933

    ~Share the knowledge~

    By The WhiteRabbit March 08, 2001, 01:14 PM

    It really depends how lucky you're feeling -- in general, aluminum Tbirds don't OC quite as well as Durons (which only come in aluminum) but the extra cache on a Tbird gives it roughly a 100MHz performance advantage over the Duron (depending, of course, on what software you're actually using it for) So, if you can get a Tbird 700 to hit 850~ish by fsb OCing, it'll probably perform as well as a Duron 700 clocked to 933. Of course, it's not that hard to get a Duron 700 to hit 933, or even higher, so it's up to you which way you want to go.

    Just remember that there are no real guaruntees in overclocking.

    By AbsolutZero March 08, 2001, 01:18 PM

    Don't forget that if you haven't bought your processor yet, most of them are shipped unlocked by default anyway. I just got an OEM 1.2g 200mhz T-bird that was unlocked from atacom (I haven't been atacom'ed yet the 3 times I've ordered from them ).

    By Racer^ March 08, 2001, 01:45 PM

    Is it possible to FSB overclock (without the pencil trick) on an ABit KT7? Someone said that since this motherboard's RAM can run asyncronous to the FSB, even if I up the RAM speed to 133 Mhz, the FSB for the processor would still be 100 Mhz.

    By florrb March 08, 2001, 02:25 PM

    If that's the KT133 rather than the KT133A, then you're using a FSB of 100mhz-DDR, and it won't OC much at all-few people get it to even 110mhz. The 133 is the interface between the N-bridge and the SDRAM. The fact that it's out of sync like that is somewhat inefficient.
    The KT133A uses a FSB of 133mhz-DDR, and it overclocks really well on top of that.
    That's one of my other questions: several review sites claimed to get the FSB up over 150, but does anyone know how many peripherals were running on the system when it was pumped up that far?


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