danny5 Posted April 24, 2005 Posted April 24, 2005 Spammah's first post. Not much to go on based on what you wrote thus far. First off, are you using Memtest to check for stability on your ram? What ram timing are you using? What dimm voltage are you using? Have you tried the memory modules individually? What power supply are you using? Do you have all 4 power connectors attached to the board? Share this post Link to post Share on other sites More sharing options...
CheesePoofs Posted April 24, 2005 Posted April 24, 2005 I just finished my overclocking. I'm at 2412mhz (9*268) with 1.52 volts according to the bios's reading. I'm using the stock cooler. That seems to be the limit for my chip; I tried 2430mhz (9*270) and it would fail prime after anywhere from 5 minutes to an hour and a half. Ram is running at a 3:4 divider so its at 201mhz. I'll try overclocking that later. The only weird thing I noticed was the voltages. I got readings of 1.52v in the bios and 1.504v in CPU-Z for all of the following settings: 1.175*133%=1.56275v, 1.15*136%=1.564v, and 1.275*123%=1.56825v. When I switched to 1.25*126%=1.575v it read 1.54v in the bios and 1.52 in CPU-Z. The funny thing was that when overclocked to 2430mhz, I could run prime for 1.5 hours at the second setting before it'd fail (1.15*136%=1.564v), yet at the third setting (1.275*123%=1.56825v) it lasted 5 minutes. My thoughts are that the board will supply the same voltage to the CPU for any setting that equals 1.56-1.569, or 1.57-1.579, or 1.58-1.589, etc. Share this post Link to post Share on other sites More sharing options...
spammah Posted April 24, 2005 Posted April 24, 2005 Spammah's first post. Not much to go on based on what you wrote thus far. First off, are you using Memtest to check for stability on your ram? What ram timing are you using? What dimm voltage are you using? Have you tried the memory modules individually? What power supply are you using? Do you have all 4 power connectors attached to the board? Hmm, I didn't check MEMTEST86 for my modules so far but it has worked fine with my old AXP 1700+ overclocked to 2.4 GHZ.. RAM Timing: Tcl: Set to 2.0 and the rest set to Auto, so.. I've tried 2-3-3-8 and 2.5-4-4-8 and still no go for the overclock... DIMM Voltage: at 2.85V I haven't tried the memory modules individually. I guess I'll check that then.. Enermax Coolergiant 485 W PSU which has 18 A at the 12 V rails. All the power connectors in the board connected (The 12V molex, the 24 pin power, the intel style connector and the floppy 5V connector) Any help would be gladly appreciated... I also tried a 1.475 Vcore with 104% CPU VID special option but can barely hit 205 FSB Share this post Link to post Share on other sites More sharing options...
danny5 Posted April 24, 2005 Posted April 24, 2005 Is that PSU a ATX 2.0? Sorry, too lazy to look. Memtest86 is required. I do that before I even consider overclocking. Share this post Link to post Share on other sites More sharing options...
derektm Posted April 25, 2005 Posted April 25, 2005 I have my Start up voltage at 1.225 and the Spcial VID Control set to auto and the %% percent thing at %123. I can do 240 * 10 = 2400mhz Prime95 stable (1.43Vcore) . I cant seem to hit 2500mhz prime95 stable . I have OCZ VX 4000 Ram @ 3.2volts (using the 9/10 divider thing (180 instead of 200) and a Winchester 3200+ CBBFD 0441 UPCW. HTT Multiplier thing is at 3x instead of 4x. I have tried LDT Voltage at 1.2 and 1.3. Tried chipset voltage at 1.5, 1.6, and 1.7. What to do now? I can clock 2700mhz+ but just not prime95 stable. Share this post Link to post Share on other sites More sharing options...
SaFrOuT Posted April 25, 2005 Posted April 25, 2005 I have OCZ VX 4000 Ram @ 3.2volts (using the 9/10 divider thing (180 instead of 200) and a Winchester 3200+ CBBFD 0441 UPCW. why are u using a ratio when ur ram can do FSB 250 2-2-2-x @ 3.2V ??? why had u bought those awesome ram when u won't benifet from its speeds and abilities Share this post Link to post Share on other sites More sharing options...
derektm Posted April 25, 2005 Posted April 25, 2005 why are u using a ratio when ur ram can do FSB 250 2-2-2-x @ 3.2V ??? why had u bought those awesome ram when u won't benifet from its speeds and abilities Because I wanted to use 260 HTT to reach higher speeds and I dont want to put the ram past 3.2V to get to those speeds. Share this post Link to post Share on other sites More sharing options...
derektm Posted April 25, 2005 Posted April 25, 2005 By the way.....when Prime95 is running when im trying to get 2500mhz, I get around 50-53C on proc temp. Is that holding me back? Share this post Link to post Share on other sites More sharing options...
chennhui Posted April 25, 2005 Posted April 25, 2005 Finally my CBBID 0508 could do 290HTT x9 = 2610MHz at 1.475v 1.13%, but this required a slight rise in LDT = 1.3v and NB = 1.6v, PDP XLBK 2.8v at 2.5-4-3 1T 1:1. It would not do at LDT and NB default voltage. So this may help CBBID stepping. Share this post Link to post Share on other sites More sharing options...
Scrufdog Posted April 25, 2005 Posted April 25, 2005 Finally my CBBID 0508 could do 290HTT x9 = 2610MHz at 1.475v 1.13%, but this required a slight rise in LDT = 1.3v and NB = 1.6v, PDP XLBK 2.8v at 2.5-4-3 1T 1:1. It would not do at LDT and NB default voltage. So this may help CBBID stepping. how prime95 stable is it at that speed? Share this post Link to post Share on other sites More sharing options...
chennhui Posted April 25, 2005 Posted April 25, 2005 I did an overnight 8 hours prime95 and looped memtest test 8- 20 pass. So my guess is the system is stable. The PWMIC and NB reached 55c, CPU 56c-60c during prime. However, game with Unreal tournament 04, the temperature is lower with cpu 45-50c, PWMIC and NB 51c... I set the shutdown temperature in BIOS as 65c, just in case the CPU exceed 64c during my overnight priming. Edited: damnit, system crashed (shut downed) during DVD shinking... I guess it could be the CPU temperature reaching the shutdown temp. Gone back to my last stable speed, 2520MHz... Share this post Link to post Share on other sites More sharing options...
SaFrOuT Posted April 25, 2005 Posted April 25, 2005 Because I wanted to use 260 HTT to reach higher speeds and I dont want to put the ram past 3.2V to get to those speeds. ur ram are garunteed up to 3.5V so giving it 3.4 for fsb260 is not a problem Share this post Link to post Share on other sites More sharing options...
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