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Post by dopemann on Jun 30, 2007 13:32:54 GMT
OK I have some Good Results and Some Bad Results. Good Results: I did some Benchamark test with Xbench and I get a Score of 45.10 with 1.0 Ghz w/133Mhz. Memory and CPU values are Good. L2-cache runs with 1000Mhz and L3-cache runs 250Mhz. 1.25Ghz w/167Mhz however, 45.58. The improvement isn't quite as good as I had hoped. But I know were the problem is. L2-cache 1000Mhz and l3-cache 250Mhz. I have a bottleneck situation now. I need to get the l2-cache up to 1250Mhz and the l3-cache to 312.50Mhz. Good News is, that i found the resource values for the l2-cache clock-frequency. the frequency is at 1000Mhz. So the Script dosen't have a real Overclock feature. But I managed to find a way that might get the cache up to 1250Mhz. Bad News is, I cant find the resource for the l3-cache clock-frequency. I think that it wont bring much if I get the l2 up and the l3 still struggles along with 250Mhz. I'll try to clock the l2-cache up tonight and run some Benchmarks. I'll also give the 1.33 Ghz setting a try. Another interesting thing I observed while I was crunching some numbers yesterday. The Script is used as an Option. I need to put some extensive improvements on it. And I hope I'll find the L3 cache. Below are Some Screenshots of my current stable settings. Thanks for the values. I'll post my new results as soon as possible. I'm certain that if I get the L2 & L3 up to speed, the benchmarks and overall Performance will go up a notch.
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Post by dopemann on Jun 30, 2007 13:39:18 GMT
Question when overclocking with Soldering the PLL, do the L2 and L3 cache speeds change?
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Post by ritalin on Jun 30, 2007 15:12:11 GMT
mmm...
I'm quite skeptical. It also seems strange there was no increase in the CPU temp after hacking the firmware.
Sorry to be such a pessimist, I hope I'm wrong and that the over-clock is actually functioning.
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Post by dopemann on Jun 30, 2007 15:21:03 GMT
Yea, I'm also wondering why, it's like that. I'm sure that its because the L2 & L3 are not influenced by this hack. But I'm not giving up so easily. I have also read of user who are using Regie SE to hack the HID values, and multipliers.
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Post by dopemann on Jul 3, 2007 11:04:42 GMT
OK. I'm not able to clock the Caches, basically if the caches hang behind there's no real Overclocking. I reached 1.33 Ghz w/167Mhz.
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Post by B B on Jul 3, 2007 14:55:23 GMT
About the cache level 2 and 3, you can read this : If you're going for a bit of overclocking, head over to the MDD Overclocking Guide on the bitsandpieces.info website. There you'll find some much better pictures of the processor module, as well as all of the resistor positions for the processors and voltage regulator. I was a little concerned about the effect on the L3 cache (four 512KB Samsung K7D803671B-HC30 chips, two of which can be seen just above the processors on my picture above) and whether they would require heatsinks, but it turns out they are rated up to a maximum of 370MHz. At the stock 1.42GHz they run at 237MHz, at 1.50GHz they run at 250MHz and at 1.58GHz they sit at 264MHz, generating very little heat, so I don't think it's anything to worry about. Check which cache memory chips you've got, though - they vary between boards, especially if you have 1MB L3 cache instead of 2MB. You find this onthe site of Andy Davison: homepage.mac.com/andydavison/roobarb.dfpx.co.uk/g4reno/part1/02dismantle/02dismantle.htmlThis site is also mentioned on the home page from Aquamac.
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vaz
Junior Member
Posts: 65
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Post by vaz on Jul 11, 2007 3:58:23 GMT
I found the part # for my L2 cache on my daughter card. It is R50 0437 Anyone know what the maximum rated speed is for this? It runs at the same speed as the CPU, which is 1.33, and i've had it up to 1.47 but it wasn't stable.
I want to find out what's not keeping up with my overclocking. RAM? L2/L3 cache? 133mhz bus speed?
Any help would be great! VaZ
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