Jadawin Posted July 21, 2005 Posted July 21, 2005 I know, I should be happy with my X2 4400+, but I'm not. It just maxes out at 2400 Mhz, everything else isn't stable and for 2400 Mhz I already need 1.45v. And it's just core 0 that is the culprit. 2500, 2600... all fine with core 1. 2450 and core 0 goes mental in Prime95, even with 1.56v. I changed my Zalman Cu-7700 for my shiny new Koolance Exos-2 today (see sig), hoping that I may get that cpu stable at 2600. But no, it wasn't the temperature at all, the Koolance lowers my temps about 10C with no noise at all, so I'm happy with that, but my overclocking results suck. Yeah, I've got the equivalent of a 4800+, maybe a bit more with memory running at 1:1 @ 240 Mhz, but... oh well, I just have to force myself to be satisfied with that. Hard for someone who started overclocking in the early 90s by soldering 50 Mhz clock generators (instead of 40 Mhz ones) on Amiga 1200 Turbocards /rant over. Share this post Link to post Share on other sites More sharing options...
noktekniq Posted July 21, 2005 Posted July 21, 2005 some may say taht the x2 is the hardest to tame. especially both the cores aren't the same u you would have to tune both cores in an ordily fashion... i suggest u read around and ask for help. ocforums.net would be a nice spot to visit as for here i haven't seen much of users with x2... a lot with fx's tho Share this post Link to post Share on other sites More sharing options...
Jadawin Posted July 21, 2005 Posted July 21, 2005 Thanks for that page, I'll have a look. I knew that this could happen before I bought it and my system is still very smooth and fast and so much better than my 3500+ @ 2.5 Ghz. I'm just greedy :nod: :angel: Edit: ocforums.net doesn't exist. it's .com Ok, not even 1.6v can convince Core 0 to run at 2450 Mhz. Nothing I can do. But 1.44 is enough for 2400 Mhz. Share this post Link to post Share on other sites More sharing options...
malinois1 Posted July 21, 2005 Posted July 21, 2005 My black sheep is core 1. I just got her last night so still playing around with it. Currently at 2539MHZ @ 1.36V She ran all the way up to 2475 with 1.3V the core 1 would fail 20 minutes in prime. Currently at 30 minute with the new voltage and speed :nod: . All I want is 2.6 and I will . my pants. But is has to be 12+ hrs prime stable and 3D stable. Ultimately though If I can get 2.5 stable I should be happy and I am sure I can squeezt that much out of her. Did you try running a divider to try and rule out the Ram or timings Share this post Link to post Share on other sites More sharing options...
Velk Posted July 22, 2005 Posted July 22, 2005 That is pretty disappointing for X2 overclock yeah. Mine goes to 2400 np on stock voltage and settings, 2650 with 1.4v isn't a problem with memory divider, however, the chipset temp seems to get pretty high at that rate, and the chipset fan on max is *loud*. Turned it back down to 2400 for now because I couldn't stand the noise 8) Share this post Link to post Share on other sites More sharing options...
Jadawin Posted July 22, 2005 Posted July 22, 2005 I tried mem dividers and slower speeds, of course, but that shouldn't be a problem with my G.Skill LA 4800 anyway. One thing I will try on the weekend is to remove 2 of the 4 sticks and see if it's the core itself or it's memory controller... my old Winnie liked it up to 10x250 with quite fast settings. Share this post Link to post Share on other sites More sharing options...
Jadawin Posted July 22, 2005 Posted July 22, 2005 however, the chipset temp seems to get pretty high at that rate, and the chipset fan on max is *loud*. Turned it back down to 2400 for now because I couldn't stand the noise 8) Did you try to change the BIOS settings to "Full Speed only >60?" Works wonders. Share this post Link to post Share on other sites More sharing options...
Jadawin Posted July 22, 2005 Posted July 22, 2005 Ok, tried it with 2 sticks only over lunch, same thing. I'll get used to "only" 2.4 Ghz :shake: Share this post Link to post Share on other sites More sharing options...
Jadawin Posted July 22, 2005 Posted July 22, 2005 Well... there was one last, brutal, suicidal option, wasn't there? I mean... risking the life of the CPU by doing that: It worked fine for Pentium 4s, so I thought, what the heck, it's just £440... and I can't afford a new one and my old CPU is sold already, so I was a BIT scared, I admit. But after going round the IHS with that razorblade, it came of easily. And that grey stuff between the CPU and the IHS is hard and dry and crumbles easily and I thought, well, if the CPU did survive that procedure, maybe it'll be cooler and needs less voltage. The core is pretty large compared to e.g. an Athlon XP, so contact between the waterblock and the core should be good. Koolance adds 2 screws for the waterblock, one for CPUs with IHS, one (a little bit longer) for CPUs without. Lucky me, no modifying, just use the other screw. Machine boots, I check the bios and the CPU at 2.4 Ghz with 1.5v is at 38C. Hooray Then I go into Windows... CPU-Z, Prime95-1, Prime95-2, 2.4 Ghz, 1.5v... maxes out at 48C. The big moment: ClockGen. Change FSB from 240 to 245. Before, this instantly made core 0 crash in Prime95, within milliseconds. Now... nothing, calculates away. SUCCESS! FSB to 250 Mhz -> 2.5 Ghz. No error and still running fine. In fact, I am writing this now while both cores are still in Prime95 torture test! 51C core temp. Woohoo! It's not core 0! It was the damned heatspreader stopping me! I am happy with 2.5 Ghz, but who knows what's possible now. Maybe less voltage, maybe 2.6 Ghz? To be continued... Disclaimer: I'm not responsible for anything YOU want to do or will do because of my post. DON'T DO THIS AT HOME! Better even, DON'T DO IT AT ALL. Share this post Link to post Share on other sites More sharing options...
ExtraPickles Posted July 22, 2005 Posted July 22, 2005 I definitely admire your intestinal fortitude... great job! -pickles Share this post Link to post Share on other sites More sharing options...
Jadawin Posted July 22, 2005 Posted July 22, 2005 It's either intestinal fortitude or I'm just mad :nod: 2550 Mhz btw., still 1.5v... Share this post Link to post Share on other sites More sharing options...
Jaxidian Posted July 22, 2005 Posted July 22, 2005 Wow, glad to hear you figured out the problem! Definitely something good to know that the material inside A64 IHSes are that crappy. Share this post Link to post Share on other sites More sharing options...
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