ConeBasherCarlo Posted December 10, 2007 Share Posted December 10, 2007 I have a GA-p35-ds3l and q6600 fully functional on Leopard using ToH's release. I am having a problem overclocking past 2.7 GHz. At 333 FSB, the OS boots and everything is fine but the OS shows my cpu is at 2.7GHz and benchmarks haven't improved. Has anyone ever heard of EIST limiting an overclock to 2.7GHz? I tried to disable EIST but the OS will not boot. thanks for your help. Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/ Share on other sites More sharing options...
ConeBasherCarlo Posted December 12, 2007 Author Share Posted December 12, 2007 It looks like it has nothing to do with EIST. The motherboard is scaling back to 300FSB no matter what i do. Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-535797 Share on other sites More sharing options...
socal swimmer Posted January 2, 2008 Share Posted January 2, 2008 I had this problem too. The BIOS says one thing, and the OS + benchmarks say another. Its SO DUMB!!! Well, for me it went away after I added 2GB of memory. So, I guess the only solution is to go out and buy more memory.... oh darn.... No but seriously, Try unplugging it for a while (maybe 5-15 minutes...) and see if that fixes it. Also, go through and disable every frikin option that messes with your clock speed, voltage, or performance level. When you disable EIST, what happens? Which OS will not boot? Does it give you error messages? how did you install? Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-562604 Share on other sites More sharing options...
scottath Posted January 16, 2008 Share Posted January 16, 2008 I have a GA-p35-ds3l and q6600 fully functional on Leopard using ToH's release. I am having a problem overclocking past 2.7 GHz. At 333 FSB, the OS boots and everything is fine but the OS shows my cpu is at 2.7GHz and benchmarks haven't improved. Has anyone ever heard of EIST limiting an overclock to 2.7GHz? I tried to disable EIST but the OS will not boot. thanks for your help. Disable EIST and the Speedstep and other things related, it hampers overclocking and is just annoying Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-582465 Share on other sites More sharing options...
ZosoM3 Posted January 17, 2008 Share Posted January 17, 2008 Just as an FYI.... I have the same motherboard and processor. My Q6600 is running at 3.33GHz (370MHz FSB with 2.4 multiplier for the memory). Runs great. I have EIST and Speedstep enabled too. I'm running Kalyway 10.5.1 Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-582785 Share on other sites More sharing options...
ConeBasherCarlo Posted January 17, 2008 Author Share Posted January 17, 2008 I found the problem. When I upped the vram it became unstable. It's now running at 3.0Ghz with vcore at 1.35. I'm happy with it now. Xbench is around 195. Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-582812 Share on other sites More sharing options...
iron Posted January 18, 2008 Share Posted January 18, 2008 Gigabyte boards can have a significant voltage drop. Best thing to do is if you have XP/Vista installed as well is to get tools like Everest to see your actual voltages. I'm running a Gigabyte P31-DS3L with a Pentium Dual Core E2160 1.8 OC'ed to 3.0 GHz, and noticed my board with dropping the voltage .5 As a result, I couldn't even run Orthos or other stress tests for more than a minute. I have to put my voltage up to 1.34 to get it to run at 1.30V, Normal voltage for that cpu is 1.325V, but 1.3 is the sweetspot that I can OC it to 3 GHz and run slightly below normal voltage. Just keep that in mind and also make sure your RAM is running at the proper voltage. DDR2 motherboards run at 1.8V standard, alot of the performance ram runs between 1.9 and 2.2. Undervolting the ram can lead to lower overclocks, failure to post, system instabilty etc. Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-584339 Share on other sites More sharing options...
Andrew Volkov Posted January 19, 2008 Share Posted January 19, 2008 why you use C1E\EIST functions for OC ? add Vcore Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-585171 Share on other sites More sharing options...
scottath Posted January 23, 2008 Share Posted January 23, 2008 Along with Everest, you can use CPU-Z, shows actual speeds, multiplier, voltage, RAM timings and SPD, motherboard etc Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-590375 Share on other sites More sharing options...
mtotho Posted January 25, 2008 Share Posted January 25, 2008 I have the q6600 paired with this motherboard @333x9 no problem. All bios settings are defaulted except for Native IDE and i turned off thermal control. I probably could oc higher but i have the old q6600.. pre g0 steppings.. which means it runs hot . Link to comment https://www.insanelymac.com/forum/topic/75696-gigabyte-ga-p35-ds3l-eist-limiting-to-27ghz/#findComment-593291 Share on other sites More sharing options...
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