Overclocking Overclocking an Athlon MP 1.2Ghz

Discussion in 'Hardware' started by hodgy100, 5 Jul 2008.

  1. hodgy100

    hodgy100 Minimodder

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    like the title says i am trying to overclock an old athlon MP that runs at 1.2Ghz, it has a throughbread core.
    how good at these at overclocking as i cant find much about them on the internet.
    any information will be apriciated:)

    im even more confused as i just found a website saying that all of the athlon MP's are based on the Palomino core whereas CPU-Z begs to differ??? http://techreport.com/articles.x/2994/1
     
    Last edited: 5 Jul 2008
  2. MR BUNGLE

    MR BUNGLE Shoddymodder

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    Hiya...
    Well, AMD did make t-bred based MP chips, but I can't find any reference to any with such low clocks.. (and can't see why they would, considering that these chips were sold at up to nearly double that speed, making running 2 of them nearly pointless!)

    - Could really do with the full OPN (everything on the black label on the chip package)

    There were some XP mobile 1400+ chips that ran at 1.2ghz, on a 100mhz fsb speed, rather than the normal 133 or 166fsb. CPU-Z should show you that: all MP chips had a 133fsb.
    - Let us know what the stock voltage is - would guess 1.3v?

    - It's entirely possible that someone's been monkeying around with the bridges on the chip, trying to change the multiplier or turn it into an XP-M.

    Anyhoo, without knowing more about this chip, it's difficult to say how far it will clock: T-Bred A's won't go much above 2ghz, whereas B's can reach more like 2.6ghz.

    What setup have you got to play with this on btw?
     
  3. hodgy100

    hodgy100 Minimodder

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    its very old so im not expecting much tbh.

    Mobo: PC-Chips M863AG/G Link
    RAM: 768MB kingston value DDR-PC2700 166Mhz 333Mhz effective

    CPU-Z just gives me an arror saying that it could not acess the device drivers??? this limits the information that it is telling me, but i wil pull up what information i can about the processor tomorrow when i have acess to the pc.

    the processor was OEM when i bought it so i dont have any packaging, and i shouldnt think that the bridges have been messed with as i built the system and didnt have a clue about anything like that, at the time.

    i will try to get hold of the OPN but i dont have any themal paste at the moment so it might take a while...

    either way the mobo's max fsb is 166Mhz with the RAM which im not too keen on overclocking as it is cheap RAM but even that would push the cpu to just under 2Ghz it's just wether it will be able to take it or not?

    im not expecting any miracles, its more of a practice at overclocking before i go and do it on more expensive equipment. i will provide more information for you when i can get to the computer.

    thank-you for showing interest :)

    EDIT: I have scince found out that the vcore runs at 1.648v :jawdrop: acording to the bios and the family model step is 7.8.1

    Note: is it possible that the mobo hasnt detected the cpu properly and it is being underclocked due to incorrect bios settings? also when i bought this i was told that it had the equivilent power of an Athlon XP 2500+, that could be that i was conned (damn) or it backs up that my mobo hasnt detected the cpu properly.

    i have also found THIS the table doesnt show the processor that i have at all, infact the closest thing to my processor (same multiplier 12X) is infact a Athlon MP 1900+ that runs at 1.6Ghz with a 133 fsb
     
    Last edited: 7 Jul 2008
  4. MR BUNGLE

    MR BUNGLE Shoddymodder

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    Hi!
    - Forgot to check back on this yesterday....

    CPU-Z can give errors like that when not properly installed, or if you have certain monitoring progs running already: Close everything else first, and make sure its the latest version that you have - maybe reinstall.

    -Taken from fab51:
    The only known T-Bred-based MP chips:
    Athlon MP - for Multiprocessor 60W
    AMSN2000DUT3C (1.67G) DUT3C OPGA 1.60 90 266

    AMSN2000DKT3C (1.67G) DKT3C OPGA 1.65 90 266
    AMSN2200DKT3C (1.80G)
    AMSN2400DKT3C (2.00G)
    AMSN2600DKT3C (2.13G)


    The MP 2000+ came with a 12.5 multi, so it really looks as though your BIOS isn't recognising the chip, and setting some random stuff.

    That vcore is quite normal for TBreds, don't worry..
    Strange, as I don't know of a Family 7 - should be 6, as all socket A chips are.. Good news is it looks like a TBred-B (good clocker)

    If you're gonna clock this chip, make sure the RAM is running at the same speed as the FSB - Just had a look at the manual:
    - Disable Spread Spectrum on the Advanced Setup menu
    - On CPU PnP page, disable Auto Detect DRAM Clock, and set it to match CPU Frequency, which is probably 100. (Looks like it shows DDR speed, so DRAM Freq should be 200)

    Can't see a multiplier option, so grab CrystalCPUID - your board might allow multiplier and voltage changes from within windows, which makes overclocking much easier, especially as you don't have many BIOS options!
    To test: (don't have anything important running in case of probs)
    - Go to function menu and choose AMD K6/7etc multiplier.
    Compare the current and max multiplier - (I'd expect at least a 12.5 max) If it's different, choose the next .5 up from current.
    If you're lucky, it should change the current multi on the main screen. Also try the voltage change option: again, see what the max allowed is and increase the current by one step if you can - use CPU-Z to verify changes.

    If you have success, then it's time to play - grab Prime95 or similar to test stability, and start increasing the fsb, (either in the BIOS or with Clockgen if it works!) multiplier and voltage as required.
    - You should be able to get over 2ghz on the default voltage, but you could increase up to 1.75 as long as it stays under 50c @load.
    (What cooling have you got btw - stock AMD? Does it have a copper base?)
    Phew! That was long... Hope I didn't ramble too much!
     
  5. hodgy100

    hodgy100 Minimodder

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    i took the dive and upped the fsb speed to 133mhz, it loaded up fine and the mobo no recognises it as an AMD Athlon MP 1900+ so i guess it was the bios afterall, although i am still running stability tests just to make sure. CPU-Z now works, no more driver problems! I will try to go a bit firther if i can reach 2Ghz on stock cooling i will be chuffed :) thats an fsb of 166Mhz with a 12x multiplier i believe.Thanks for all the help and wish me luck :)

    UPDATE: i've been working non stop on it today and i have finally managed to get the fsb to 166Mhz (2Ghz speed) i started stress testing and temps got to around 55 pretty quickly so i have placed annother fan in the pc and temps now run at around 45 when beeing stressed, i am now continuing to stress it for a while.

    the strange thing is that now the bios recognises it as an AMD Sempron 2800+
     
    Last edited: 9 Jul 2008
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