cidsor Posted August 4, 2009 Posted August 4, 2009 Hey guys, I just joined the site hoping to tag along Also I have a question for you. I've got a Phenom II 940 at stock speed at the moment. The reason for this is because I cannot figure out how to get my CPU over 3.7ghz. Whenever I overclock it to 3.8ghz or higher I either get a bluescreen once I hit the "Start bla bla Windows". Im using a pirated version of Vista Ultimate x64 ( ye, just incase some "lawyers" doesn't like copied stuff I pirateted my OS off of a big ship called Piratebay ) I doubt this is by any means bad, but Im not allknowing like you guys . Btw when I had the CPU at 3.7ghz it seemed slower then stock. The temps @ the 3.7ghz clock were a bit below 47degrees after about half an hour of OCCT stressing (I had use higher voltage than neccesary). I've tried remounting the waterblock (incase there where bad contact & faulty sensors), I've tried Updating the Bios up and down to various recommended versions and a ton of bios settings. The only thing I havent checked yet are the mem sticks, but it seems unlikely considering the system run OCCT @ 3.7ghz and doesn't start @ 3.8ghz. Thanks for advice or tips Cidsor Share this post Link to post Share on other sites More sharing options...
damian Posted August 4, 2009 Posted August 4, 2009 What settings did you change in the BIOS to get to 3.8GHz? Share this post Link to post Share on other sites More sharing options...
cidsor Posted August 4, 2009 Posted August 4, 2009 (edited) What settings did you change in the BIOS to get to 3.8GHz? I've done 17x225, 15x255, 19x200, or at least those are the comboes I've tried that I can think of. Tested with low, medium and high voltages. And I just tested for faulty memory and thats not the cause of it either Unless I've got 3 bad sticks Edited August 4, 2009 by cidsor Share this post Link to post Share on other sites More sharing options...
Flar Posted August 4, 2009 Posted August 4, 2009 From all the reviews I've read on the PII 940 3.7/3.8 seems like a fairly average clock so maybe you just got a sub par/average chip? Share this post Link to post Share on other sites More sharing options...
Hedghawg71 Posted August 4, 2009 Posted August 4, 2009 I got a Crosshair III the other day, (After having killed the MSI GD70). Topping the 955 is a Tuniq Tower with an Antec Tri-cool in it because of the higher cfm rating. The 955BE is the AM3 version of your chip. (Tuniq keeps it around 35c-45c.) It sits at a 3.92 stable under OCCT by overclocking the bus rather than the multiplier. (I couldn't get it over 3.7 stable on the multi alone.) Setting the fsb at 245mhz, The NB at 1.375 and the chip at 1.475. The memory is rated at 1600mhz but before I put it to it's max rating it was defaulting at 1333. You may not be able to hit the exact same clock, but then again you may be able to go further by doing it this way but either way, I hope this helps. Share this post Link to post Share on other sites More sharing options...
cidsor Posted August 4, 2009 Posted August 4, 2009 (edited) Was meant for Flar ^^ True. Tho I'd thought that with a good watercoolingsystem combined with high voltages should be able to do more than 3.7ghz, especially on 1.55V+? Or is that just it? Btw CPUZ says I've got stepping 2 ( anyone know what real stepping that means? ) and revision RB-C2. I've found some of those around here (meaning Google:P) doing 4ghz+. But maybe they were phasing? I dunno. Hedghawg71 Ah well, guess I'll just try with more voltage and push it near to the 62degree limit and see if that helps, with FSB and multi increase /me crosses his fingers. Edited August 4, 2009 by cidsor Share this post Link to post Share on other sites More sharing options...
Hedghawg71 Posted August 4, 2009 Posted August 4, 2009 (edited) True. Tho I'd thought that with a good watercoolingsystem combined with high voltages should be able to do more than 3.7ghz, especially on 1.55V+? Or is that just it? Btw CPUZ says I've got stepping 2 ( anyone know what real stepping that means? ) and revision RB-C2. I've found some of those around here (meaning Google:P) doing 4ghz+. But maybe they were phasing? I dunno. Mine's on air. I could be over 4ghz stable with a little more tweaking but I'm right at it's sweet spot right now. It performs well like this. I used to have a Q6600 before the famous "G0" stepping at 3.6ghz on air too just by fsb and minor voltage tweaks. I really wonder if revisions really count on Black editions myself. Edited August 4, 2009 by Hedghawg71 Share this post Link to post Share on other sites More sharing options...
Hedghawg71 Posted August 4, 2009 Posted August 4, 2009 Put a box fan next to the case. :thumbs-up: Share this post Link to post Share on other sites More sharing options...
Boinker Posted August 4, 2009 Posted August 4, 2009 Whats the northbridge frequency at right now. If you have not messed with it you have to turn it up as you oc cause it will bottleneck the chip at the NB and cause a failure. Move the NB up too 1.25-1.30 volts and get the NB multi to about 10-12 or about 2400-2600mhz and see what that does for you. I ran into that issue at 3.50 GHZ and had to increase the NB multiplier and the vdda volts to 2.65something and found it stable. and I need water cooling now to get to 3.60GHZ cause I need more power. If you want to see where your NB Freq is at You can find it in cpu ID in the memory tab. Share this post Link to post Share on other sites More sharing options...
Boinker Posted August 4, 2009 Posted August 4, 2009 Put a box fan next to the case. :thumbs-up: . ROFL Share this post Link to post Share on other sites More sharing options...
rourkchris Posted August 4, 2009 Posted August 4, 2009 I've got 2 Phenom II 940s and one clocks to 3.795Ghz and the other tops out @ 3.6Ghz. No matter how much voltage I throw at it 3.6Ghz is that chips limit. It's really luck of the draw. Share this post Link to post Share on other sites More sharing options...
cidsor Posted August 4, 2009 Posted August 4, 2009 Put a box fan next to the case. :thumbs-up: lol ^^ I just tried to get a 3808mhz 238x16 clock with 1.675V and I got nothing, not even a bluescreen. It was reboot on the spot And ye, DDR, VDDA, chips and so on got pushed pretty far in that attempt. But it's getting late (5am) and boinker, thank you Forgot to raise the NB multi in this try, ill see if it helps Share this post Link to post Share on other sites More sharing options...
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