cyberstorm Posted December 18, 2008 Posted December 18, 2008 Hello everybody, iam not so experienced in overclocking so i thought you might can help me. I would like to overclock the Q9550 (base clocks: 2,83ghz, FSB 1333) to 3,0ghz+ with FSB 1600. The shuttle mainboard and my ram (4096MB Corsair PC3-1600 CL7 KIT XMP) supports FSB 1600. I have already tried overclocking it, but it failed with prime95. I have the latest shuttle bios installed. Any of you know how to set the voltages? Thanks in advance! Share this post Link to post Share on other sites More sharing options...
ir_cow Posted December 18, 2008 Posted December 18, 2008 well 8.5x multi @ 1600 (400fsb) will give you 3.4ghz. do you have a good enough cooler for it? better yet what is your stock temps with prime95 running. check out "Coretemp" Share this post Link to post Share on other sites More sharing options...
cyberstorm Posted December 21, 2008 Posted December 21, 2008 well 8.5x multi @ 1600 (400fsb) will give you 3.4ghz. do you have a good enough cooler for it? better yet what is your stock temps with prime95 running. check out "Coretemp" hi, yes the cooler is doing well (Shuttle I.C.E cooling) stock temps are at 45-55 Share this post Link to post Share on other sites More sharing options...
1strandom Posted December 21, 2008 Posted December 21, 2008 mAKE SUre the Voltages are right or your just going to mess up the overall Share this post Link to post Share on other sites More sharing options...
cyberstorm Posted March 4, 2009 Posted March 4, 2009 Hi there, I have tried following configuration, unfortunately with no success :/ CPU DDR NB SB 1 SB 2 FSB room CPU Mainboard CPU Mainboard 1,3 1,80 1,4 1,6 1,05 +150 20 bad errors in windows 1,3 1,85 1,4 1,6 1,05 +150 20 40 43 61 62 1,3 1,85 1,4 1,6 1,1 +150 20 43 45 62 65 1,3 1,85 1,4 1,65 1,2 +150 21 44 45 65 69 1,3125 1,85 1,4 1,65 1,2 +150 21 45 46 66 68 Spread spectrum enabled and disabled. First CPU / Mainboard is in idle, the next one under load. It always failed in prime95, the longest run before it failed was about 12 minutes Share this post Link to post Share on other sites More sharing options...
mgsmid Posted March 4, 2009 Posted March 4, 2009 Hello everybody, iam not so experienced in overclocking so i thought you might can help me. I would like to overclock the Q9550 (base clocks: 2,83ghz, FSB 1333) to 3,0ghz+ with FSB 1600. The shuttle mainboard and my ram (4096MB Corsair PC3-1600 CL7 KIT XMP) supports FSB 1600. I have already tried overclocking it, but it failed with prime95. I have the latest shuttle bios installed. Any of you know how to set the voltages? Thanks in advance! first off what i did to get my q9550 is start off with default voltages. then i added some starting volts to the cpu core an nothing else like i think i went to 1.20. started taking my fsb up in increments of 20 and tested occt for like half an hour. when you get an error add volts, like 1.25. if that dosent fix your problem change the cpu core volts back to 1.2 and add .5 volts to your north bridge and test again. dont volt your south bridge, dont volt your mem, dont volt the grtlanes, pretty much your at home with the north bridge and cpu core, if you want to fiddle with other voltages thats fine just do one change at a time so you know whats helping what motherboard are you using? where did you get your computer? my q9550 is at 3.8 on 1.25 and 1.45 nb volts and i could probably go lower with the core Share this post Link to post Share on other sites More sharing options...
cyberstorm Posted March 4, 2009 Posted March 4, 2009 (edited) Hi there, thank you for your reply. This evening I tested different configurations again because I went to corsair homepage... there I found the voltage setting for the corsair module in that mainboard (of shuttle SX48P2). The corsair ram should be at 1.9V when going to FSB 1600... that was the reason of the failed tests. Tonight i ran following configurations (multiplier on 7.5 for 3.0Ghz, XMP profile activated, spread spectrum enabled): CPU DDR NB SB 1 SB 2 FSB Ambient T. CPU Mainboard CPU Mainboard stable 1,3 1,9 1,4 1,65 1,2 150 20 45 46 65 67 no - shutdown 1,3 1,9 1,4 1,6 1,1 150 20 41 42 62 66 yes, 20min 1,2875 1,9 1,4 1,55 1,1 150 22 40 41 61 67 yes, 20min 1,275 1,9 1,35 1,55 1,1 100 22 39 42 61 66 no - shutdown 1,2625 1,9 1,4 1,55 1,1 150 23 39 42 62 68 yes, 20min 1,375 1,9 1,4 1,55 1,1 150 23 40 43 61 65 yes, 20min 1,225 1,9 1,35 1,55 1,1 150 23 40 43 59 64 yes, 20min auto auto 1,35 1,55 1,1 150 23 38 42 59 65 yes, 20min auto auto 1,35 auto auto 150 24 38 41 59 65 no, shutdown auto auto 1,4 auto auto 150 24 38 41 59 65 yes, 30min I'll try lowering the FSB to +100mV as next test. If its stable i'll try having the NB at 1,35. Any stable configuration will then be tested for several hours. I'll post my results. Edited March 4, 2009 by cyberstorm Share this post Link to post Share on other sites More sharing options...
mgsmid Posted March 4, 2009 Posted March 4, 2009 Hi there, thank you for your reply. This evening I tested different configurations again because I went to corsair homepage... there I found the voltage setting for the corsair module in that mainboard (of shuttle SX48P2). The corsair ram should be at 1.9V when going to FSB 1600... that was the reason of the failed tests. Tonight i ran following configurations (multiplier on 7.5 for 3.0Ghz, XMP profile activated, spread spectrum enabled): CPU DDR NB SB 1 SB 2 FSB Ambient T. CPU Mainboard CPU Mainboard stable 1,3 1,9 1,4 1,65 1,2 150 20 45 46 65 67 no - shutdown 1,3 1,9 1,4 1,6 1,1 150 20 41 42 62 66 yes, 20min 1,2875 1,9 1,4 1,55 1,1 150 22 40 41 61 67 yes, 20min 1,275 1,9 1,35 1,55 1,1 100 22 39 42 61 66 no - shutdown 1,2625 1,9 1,4 1,55 1,1 150 23 39 42 62 68 yes, 20min 1,375 1,9 1,4 1,55 1,1 150 23 40 43 61 65 yes, 20min 1,225 1,9 1,35 1,55 1,1 150 23 40 43 59 64 yes, 20min auto auto 1,35 1,55 1,1 150 23 38 42 59 65 yes, 20min auto auto 1,35 auto auto 150 24 38 41 59 65 no, shutdown auto auto 1,4 auto auto 150 24 38 41 59 65 yes, 30min I'll try lowering the FSB to +100mV as next test. If its stable i'll try having the NB at 1,35. Any stable configuration will then be tested for several hours. I'll post my results. yeah that was my n/b 1.35 at 1600, it worked at 1.3 but my system was noticeably better at 1.35, i think your supposed to disable spread spectrum tho? Share this post Link to post Share on other sites More sharing options...
cyberstorm Posted March 4, 2009 Posted March 4, 2009 Yea your right, i just disabled spread spectrum and moved to NB 1.35V, lowering the +150mV FSB gets unstable. Are you also having +150mV FSB? I let the barebone run prime95 through the night... looking forward to the result tomorrow morning Share this post Link to post Share on other sites More sharing options...
cyberstorm Posted March 5, 2009 Posted March 5, 2009 (edited) Multi Spread S. Core C. CPU DDR NB SB 1 SB 2 FSB Ambient T. CPU Mobo CPU Mobo stable 7,5 enabled 400 auto auto 1,4 auto auto 100 -- -- -- -- -- no, shutdown 7,5 disabled 400 auto auto 1,35 auto auto 150 -- -- -- -- -- no, CPU 4 failed after 1h 2min 7,5 disabled 400 auto auto 1,4 auto auto 150 22 -- -- 60 66 yes, since 7h (still running) I'll let the test run for some more hours.... Maybe I try reducing the FSB to +100mV. I'll keep reporting. Edited March 5, 2009 by cyberstorm Share this post Link to post Share on other sites More sharing options...
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