Pushing SM23

TBonZTBonZ Ottawa, ON Icrontian
edited December 2004 in Hardware
So, SM23 has been running stock and folding rocksolid 24/7 for a week now and I thought it's time to start trying to coax a few extra megahurtz out of her.

Shipped to me was a 1600+, installed and folding now is a 1800+. After playing in the bios, I'm up to 1.85Ghz I'm pretty confident I can push SM23 up to at least 2Ghz. That's a nice kick in the butt for frame times. :thumbsup:

Comments

  • muddocktormuddocktor
    edited December 2004
    Go for it, TBonZ! :thumbsup:
  • QCHQCH Ancient Guru Chicago Area - USA Icrontian
    edited December 2004
    Way to go TBonz... :thumbsup:
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    Thanks guys, it ran error-free all night, so later today I'll be inching my way up to 2Ghz and hopefully beyond.
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    Up to 1.9Ghz. I know I still have lot's of overhead here. :)
  • mmonninmmonnin Centreville, VA
    edited December 2004
    Whats the stepping on the 1800+?
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    mmonnin wrote:
    Whats the stepping on the 1800+?

    Not sure, I would have to look at the chip.

    Up to 2Ghz now but that's as far as I go for today. I will keep a close eye and see how it stands up and maybe try squeezing a few more out of her tomorrow.
  • LincLinc Owner Detroit Icrontian
    edited December 2004
    :cheers:
  • mmonninmmonnin Centreville, VA
    edited December 2004
    Tbred B I would guess as at least. Someone could pretty much tell you by looking at CPU-Z screenie.
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    Looks that way Marc. :)
  • muddocktormuddocktor
    edited December 2004
    That proc should have a whole bunch of headroom left, TBonZ. That's a 1.5v vcore Tbred B 1800 and should be able to clock around 2400-2600 with real good cooling.
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    I can't seem to get the FSB over 170 no matter what I try. I get the best results by upping the Core and keeping the FSB in the 160-168 area. I haven't played with the voltages much at all as I don't want to hurt the machine in the process.

    Here are some screenies...

    1) MBM with no load at all - I think I'm going to have to change the NB cooler it doesn't seem to be working that well. Although I can't rule out the damage the MB had recieved in shipping isn't causing a irregularity.

    2) CPU-Z again with vcore upped to 1.55 after folding failed, seems to be folding stable now.
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    3) MBM at full load.

    I'm going to back it down a bit for now.
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    muddocktor wrote:
    That proc should have a whole bunch of headroom left, TBonZ. That's a 1.5v vcore Tbred B 1800 and should be able to clock around 2400-2600 with real good cooling.

    Any suggestions as to what may be the best Core, FSB, VCore combination is for the CPU?
  • GargGarg Purveyor of Lincoln Nightmares Icrontian
    edited December 2004
    Is the multiplier adjustable?
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    Yes it is, I've already tried dropping the multiplier and raising the FSB, but as I said, I can't raise past 170. If I can even boot, most of the time the computer would lockup in the Bios.
  • mmonninmmonnin Centreville, VA
    edited December 2004
    I dont think the Kg7 has a locked AGP:PCI bus so getting high FSBs is out of the question. Someone correct me if I am wrong.

    Set it to the highest Multi possible to allow for highest overclock.

    Are they are settings to change it to 4:2:1 to 5:2:1 to 6:2:1. That would help keep the PCI and AGP bus at stock speeds allowing for a higher FSB. That maybe be why FAH was unstable with OK temps and that vcore.

    She is almost at 1k already! DAMN!
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    Made some headroom here. :)
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    I have to stop now, my how time flies. :eek:

    Here's my last attempt for tonight, not bad. :)
  • ShortyShorty Manchester, UK Icrontian
    edited December 2004
    The board will hold you back without PCI/AGP locks... but damn..

    That's a nice overclock mate :beer:
  • JimboraeJimborae Newbury, Berks, UK New
    edited December 2004
    Very impressive stuff for such an old board. Congrats :)
  • primesuspectprimesuspect Beepin n' Boopin Detroit, MI Icrontian
    edited December 2004
    Especially an old board that's been shipped all over the place, banged up, had traces fried off the bottom of it, and rebuilt several times! :D

    Great work, man! :thumbsup:
  • muddocktormuddocktor
    edited December 2004
    That's an old KG7 board in SM23, TBonZ? Damn, that's very impressive, to say the least! :thumbsup:

    With that said, you will most probably run into data corruption problems if you keep operating at that high a fsb speed though as the old KG7 uses the AMD 761 northbridge, which doesn't even support a 166 fsb so your pci bus is presently at 46.5 MHz. What you will need to do with that board is to wiremod a higher multiplier in the socket. A 16 multiplier should work just fine, which will give you 2133 MHz on a 133 fsb and give you plenty of overclocking headroom without running into data corruption problems due to the pci bus being too out of spec like right now.

    The wire mod is pretty simple to do, Terry. Just go to the ocinside.de website and look at their interactive pinmod guide and choose the socket view. Then take something that has very thin wires like an old ATA cable and strip some wire and cut single strands in a "U" shape and put them in the appropriate socket holes to make a 16 multiplier and then carefully set the proc into the socket. I have done this with my Asus dually and it's not hard to do. I had no problems with the processor sitting snugly in the socket either, with either of the procs in my Asus.


    EDIT: What kind of ddr is in that board? That's pretty good ddr to run at that high a fsb speed on that old board as the AMD 761 chipset doesn't support running an asynch memory bus.
  • TBonZTBonZ Ottawa, ON Icrontian
    edited December 2004
    Hey guys, the board is a KD7, not a KG7. I already own a KG7 board and I know it's not even capable of coming close to this KD7.

    Prime, that's for sure. Pretty impressive for a board that looked like it wouldn't even run when I got it. :)
  • muddocktormuddocktor
    edited December 2004
    I was wondering how you got such a high fsb out of a KG7, since I used to own one too. ;) KD7 makes much more sense. Still, the same applies for overclocking that 1800 though if you are having problems due to the pci bus being out of spec. Also, if that KD7 won't let you select a higher multi than 12.5 then the wiremod still is a good idea.

    As far as vcore goes, all factory XP's 2100 and higher run with 1.65v vcore so don't be afraid to put a little more vcore to her. The main trick is keeping her cool with a good hsf.
  • fatcatfatcat Mizzou Icrontian
    edited December 2004
    i love this thread...shows the real dedication to the SMx machine and wanting her to pump the most WU's possible for the cause.

    the kd7 has the 5:2:1 so running the fsb in the 180-190 most likely wont give u data corruptions (36-38pci). it does support ddr400 ram, but u will prolly need to run it same with fsb as to not have mem errors. 12.5x190=2375,which would be a nice comfy speed(faster than SM21 :bawling: ) that vantec cooler (cck-6035D? with delta screamer) prolly wont cut it at that speed tho...so better cooling might be needed.

    otherwise awesome job so far...i think im off to try and give SM21 a speed boost
  • profdlpprofdlp The Holy City Of Westlake, Ohio
    edited December 2004
    Guess what I found in my Inbox today?

    :celebrate
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