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Thread: Average A64 CG clocks @ 1.75v on air?

  1. #1
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    Average A64 CG clocks @ 1.75v on air?

    Just got around to firing up my 2800+ CG on stock air and its pulling 2.5 @ 1.72v (113% I think) on stock air. 9x278

    This is just in memtest of course, but all I did was set it and walk away for 20 mins.. and its still going. Good sign I guess

    Oh yeah, running 1x256 bh-6, 2.77v @ 198mhz or something while I play around at the start... dont want to burn it up right off the bat lol.

    All along the watchtower the watchmen watch the eternal return.

  2. #2
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    hey stevil, i just got my 2800+ last week, mine topped out at 280x9 @ 1.65v, high voltage didnt do anything. o yeah i was using stock cooler also.

    was using tccd ram 1:1 280 2.5-3-3-7

    however been running it at 275x9 because its not primestable at 280x9, but sure runs like it is.
    new benching rig
    mobo: dfi ultra-d rev. AD0
    cpu: x2 3800+ @ 3.30 ghz
    cooling: VapoLi SS by jinu117
    stepping: LDBHE 0601 TPMW
    mem: khx pc3200 1gig bh5's
    psu: zippy emac 700watts
    gfx: evga 7800gt @ 650/1355
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    single 7800gt 3dmark05 WR!
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  3. #3
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    doing memtest @ 278x9 1.67v atm. Tried ram @ 1-3-3-7 (no, not a typo) @ 200mhz 3.07v for fun, gave only 30 errors, lol

    Tried CAS 3, 3.5, 4, and 4.5 for fun too, but BH-6 doesnt like them at all.. no post.

    All along the watchtower the watchmen watch the eternal return.

  4. #4
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    average CG clock is about 2500 mhz so yours pretty much around average
    "M-I-A"

  5. #5
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    Post

    Hi STEvil,

    screenie
    I too am running a CG on air @ 1.55v x 110%, it idles at 1.67v and when stressed seems to rise to about 1.72-1.74v. Its set up at 250 x 10 1:1 with 4x HTT whatever that does The Chip is good for 2.6 Ghz +, but it was a choice between memory bandwidth or clockspeed and 250 x 10 is a nice round number so stuck with that for 24/7 running. With 3.5v on the RAM it will hit 255 x 10 which seems ok for a pair of double sided DIMMs at 1t, it will prime well enough but it really is on the ragged edge of what these sticks can do. I'm in the curious position of having my RAM as my weakest link now, but i cant justify any more expense till christmas is out of the way

    is that 9 x 278 of yours with the BH6?!
    Q6600 G0 L720B058 @ 3.8GHz | Asus Maximus Formula (Rampage 0403 Modded) | 4x2Gb GSkill PC8000 PQ @ 1015MHz | XFX 9800GX2 XXX @ 680/2080 | 2 x WD Raptors RAID0 | 1 x WD5000KS | Samsung S203B DVDR/W | Samsung SM245B + Panasonic TX37LZD80
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  6. #6
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    my 2800+ went up to 2630mhz (292x9) with 1.67v (only stable for sss) running 24/7 with 275x9
    A64 2800+ @ 292x9 1:1 ¤ DFi NF3 250GB ¤ Adata Vitesta PC4000 ¤ Club3D 9800PRO @ 450/375 ¤ Antec TC 550w ¤ Mach I
    SiSoftSandra

  7. #7
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    Herms yours are a 3400.. Usually they clock around 100-200mhz more.
    "M-I-A"

  8. #8
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    My 3000+ clocks to 2600 mhz 3dstable on the stock cooler with stock volts.
    Opteron 165
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    XFX 7900GT 550/1500

  9. #9
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    My 3000+ does 2500Mhz @ 1.7v primestable with SLK947-U - 70mm TT-fan @ 3300RPM. More voltage and higher fanspeed (6000RPM) doesn´t help. I cant even run 3d or prime @ 2550 with 1.8v.

    Its a Clawhammer CG with half the cache disabled. Maybe that has something to do with it.

    Strange tho.. 2500Mhz primestable, but 2550 is no go even in super-pi or sandra.


    EDIT: Its not mine any longer. Forgot i sold it last night.

  10. #10
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    Quote Originally Posted by bias_hjorth
    Herms yours are a 3400.. Usually they clock around 100-200mhz more.
    Thats quite true bias_h, thing being my RAM only handles 255 at a push. I can run at 240 x 11 (2.64) but it does get hotter than I'd prefer for 24/7. I'm a little torn as to whether I would get more benefit from the extra 140mhz overall speed as opposed to the extra memory bandwidth at 250 x 10. I'll just have to experiment I think. This X.5 multiplier thing is a bit of a pain to be honest.
    Last edited by HermS; 10-29-2004 at 04:21 AM.
    Q6600 G0 L720B058 @ 3.8GHz | Asus Maximus Formula (Rampage 0403 Modded) | 4x2Gb GSkill PC8000 PQ @ 1015MHz | XFX 9800GX2 XXX @ 680/2080 | 2 x WD Raptors RAID0 | 1 x WD5000KS | Samsung S203B DVDR/W | Samsung SM245B + Panasonic TX37LZD80
    D-Tek Fuzion | PA120.3 + Shroud + Nexus Fans | MCW30 | Laing DDC w/ Petra's DDCT-01s Top Combo | Tygon 1/2" Tubing | T-Line

  11. #11
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    I´d say keep the extra 140mhz - The gain should be somewhat larger
    "M-I-A"

  12. #12
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    I'll give it a shot, I'm fairly certain i was using more voltage than was entirely necessary anyway
    Q6600 G0 L720B058 @ 3.8GHz | Asus Maximus Formula (Rampage 0403 Modded) | 4x2Gb GSkill PC8000 PQ @ 1015MHz | XFX 9800GX2 XXX @ 680/2080 | 2 x WD Raptors RAID0 | 1 x WD5000KS | Samsung S203B DVDR/W | Samsung SM245B + Panasonic TX37LZD80
    D-Tek Fuzion | PA120.3 + Shroud + Nexus Fans | MCW30 | Laing DDC w/ Petra's DDCT-01s Top Combo | Tygon 1/2" Tubing | T-Line

  13. #13
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    278 with a divider (~200mhz mem) using "testing" stick which is single sided stick of bh-6, but I have a couple other sticks of BH-6 that i'm sure could do 278 1:1 if I had the balls to feed them that much voltage.. dont want to cook my cpu They pulled 250 @ 3.38v on a dfi infinity and I played with them up to 274, though that was with memtest and it was far from stable. Took 3.75v iirc.

    It posts up to 9x300 @ 1.72v...

    All along the watchtower the watchmen watch the eternal return.

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