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Dec 23, 2009, 05:27 AM
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#1 |
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Working on getting my voltage-hungry E7400 to 3.8 on crappy air cooling.
It can be done. Check out those low low temps!
 
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Dec 23, 2009, 07:48 AM
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#2 |
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I figured out the best way to overclock on this board/CPU. I put CPU Termination, CPU PLL, CPU Reference, the Northbridge, etc to their stock, suggested settings. It turned out in not only lower temps but a system which is more easily stabilized by tweaking only the Vcore. Those other settings literally do not need to be touched, at least in my situtation. I am now at 3.8GHz, and pretty sure I'd consider it 'stable':
 And my voltages, are indeed, off the roof... Off to run tests at the next lowest voltage setting. |
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Dec 23, 2009, 07:53 AM
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#3 |
 
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You think 1.392 is "off the roof"?
 I have to set this E5200 to ~1.53 volts to get it stable at 3.8 GHz, and you're saying 1.39 is high! You really need to get better cooling though, those temps are way off the chart. Even with the ridiculous voltage I was pumping through this chip, I've never gone above 75 at load. EDIT: Were you talking about the 3.3, 5 and 12 volt readings? If so, then I really wouldn't pay attention to them. SpeedFan thinks my 12 volt rail runs at 10 volts D:
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Dec 23, 2009, 08:15 AM
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#4 |
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Nah I know the voltage readings are bonked in SpeedFan. I am talking about the voltage I have to feed this E7400 for it to be happy. I wanna test 4GHz with >1.39v but I'm afraid to see CPU temp hit 99C. I know it's possible because I saw it say 91C for a second when I was benching that pic above. Now that I've set all the other voltages to stock, I'm at the 16th Linpack run with the voltage I started out with in the first pic (which did not turn out to be stable)... And yet I still wanna push for 4.0 Linpack stable
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Dec 23, 2009, 08:27 AM
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#5 |
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Nope the first pic's voltage is no good for 3.8, crashes after half hour. Needs 1.39v for sure.
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Dec 23, 2009, 08:50 AM
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#6 |
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Dec 23, 2009, 08:53 AM
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#7 |
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What are you using, stock cooler? D:
Seriously, you're probably going to end up damaging the CPU if you keep this up, put some decent cooling on it! 
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Third rig: PC Express Invader. C2D E6400 2.13GHz, 4GB DDR2-800, 320GB HDD, Intel 945, Asus 9600GT 512MB, 550W PSU, W7 HP 64-bit. Fourth Rig: Dell Optiplex 170L, P4 Prescott 2.8GHz, 512MB DDR266RAM, 80GB HDD, FX5200PCI 128MB, 250W PSU,XP Pro Fifth rig (Laptop): Dell Inspiron 4000, 14.1", PIII 850MHz, 384MB RAM, 9.3GB, XP Pro. Now with passive cooling! “I could make a better looking computer case with a bucket of Lincoln Logs.” -lemode
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Dec 23, 2009, 08:57 AM
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#8 |
 
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Dang that CPU is smoking hot. I don't OC to often but I have my E8400 at 3.7GHz (atm) with 40c idle and I'm still using stock fan until I start my mass upgrade in 2010. The good thing about my CPU is I can oc .7GHz past its stock clock and barely have to change anything.
Hopefully you can get that temp down to a more stable number.
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Dec 23, 2009, 09:13 AM
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#9 |
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Well if you guys are comparing Linpack numbers then OK. And yes I'm using a crappy cooler, the Masscool 92MM cooler. It's only about 10 degrees below stock on average, probably half that with Linpack. Gets the job done though. Gonna leave it at 3.8 with 1.392 volts for now.
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