Crew Strunkenbold Posted November 11, 2015 Crew Share Posted November 11, 2015 Wow, the performance of those AMD chipsets are really good. I actually thought those chipsets only do a low fsb but it seems its quite the opposite! Quote Link to comment Share on other sites More sharing options...
Kotori Posted November 12, 2015 Share Posted November 12, 2015 used an external PLL, 751chipset is possible up to 150mhz(need mod) but maybe impossible in this board. Quote Link to comment Share on other sites More sharing options...
Crew Strunkenbold Posted November 12, 2015 Author Crew Share Posted November 12, 2015 So you used a TurboPLL? Great! We need pictures! Quote Link to comment Share on other sites More sharing options...
gradus Posted November 12, 2015 Share Posted November 12, 2015 Only Japan mans use externalPll) I want this too... Quote Link to comment Share on other sites More sharing options...
Kotori Posted November 14, 2015 Share Posted November 14, 2015 (edited) Not TubroPll, use DDS2 kit(Direct Digital Synthesizer2) http://akizukidenshi.com/catalog/g/gK-04594/ Sine wave output-only, 1hz~16.7mhz, 16.7mhzz~33.4mhz, depends on the Crystal, Operation at dip switch, TubroPLL doesn't sell now. Edited November 14, 2015 by Kotori Quote Link to comment Share on other sites More sharing options...
ludek Posted November 14, 2015 Share Posted November 14, 2015 What signals was necessary? So you soldered the output of DDS2 to the reference-clock-oscillator and it caused rising of PLL maximum frequency? Or could you explain what signals go where Good job, that's a hard mod. You can now beat top-socket7-FSB score. Quote Link to comment Share on other sites More sharing options...
Kotori Posted November 15, 2015 Share Posted November 15, 2015 (edited) What signals was necessary? Sorry, I don't know meaning of the question, where? which? So you soldered the output of DDS2 to the reference-clock-oscillator and it caused rising of PLL maximum frequency? Yes, For example http://hwbot.org/submission/3010261_kotori_cpu_frequency_pentium_3_celeron_mobile_500mhz_766.42_mhz PLL of this board ICS9248AF-61 maximum 100mhz By the way K7pro fsb is max 119mhz without mod Or could you explain what signals go where From DDS2 output to Mother board PLL(X1) Edited May 4, 2016 by Kotori Quote Link to comment Share on other sites More sharing options...
lanbonden Posted November 15, 2015 Share Posted November 15, 2015 Thats indeed a very intresting mod! Quote Link to comment Share on other sites More sharing options...
gradus Posted November 15, 2015 Share Posted November 15, 2015 We need externalPLL thread) and socket7 WRs need update. Quote Link to comment Share on other sites More sharing options...
ludek Posted November 15, 2015 Share Posted November 15, 2015 What signals was necessary? Sorry, I don't know meaning of the question, where? which? I did not know anything about number of outputs of this DDS2 device. My question was about number of needed signals to make motherboard workable, stable and overclockable. Signals I meant are for example: pci, memclk, fsb and maybe some others. Now as I can see only output sine wave is needed to "cheat" the pll chip. So REF0 and REF1 pins have to be connected to 14.3 MHz clock source? The second thing is to remove crystal from X1 and X2 and to connect the output sine wave to X1 pin? That's all? Are'nt there any "weird" motherboard behaviour? For example: speed-up time (for example 1minute on modded motherboard is 40 seconds real), not working USB or not working peripherials? Good work man! I'm very interested and I was thinking about to do myself similar mod but I didn't know anything about which signals-to-be-modded. (and I did not spend more than few hours doing research on "pll-mod" ) Quote Link to comment Share on other sites More sharing options...
Kotori Posted November 16, 2015 Share Posted November 16, 2015 We need externalPLL thread)and socket7 WRs need update. P5A was unable to clock change in DDS2, i don't know what cause. Iwill XA100plus was possible but board died before try max fsb. Quote Link to comment Share on other sites More sharing options...
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