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post #291 of 560
I was wondering why i have to use such a high IMC voltage of 1.39 to get stable anything lower and it bsod. does it have to do with me tighting my timings from 9-9-9-24 to 8-8-8-21? I did give the ram more voltage from 1.5 to 1.55 also i cant reach 4200 mhz without changing to insanely high voltage of 1.4. I see that a lot of you have reached this with much less voltage could this have something to do with my motherboard?
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post #292 of 560
Thread Starter 
Quote:
Originally Posted by cmatt099 View Post
I was wondering why i have to use such a high IMC voltage of 1.39 to get stable anything lower and it bsod. does it have to do with me tighting my timings from 9-9-9-24 to 8-8-8-21? I did give the ram more voltage from 1.5 to 1.55 also i cant reach 4200 mhz without changing to insanely high voltage of 1.4. I see that a lot of you have reached this with much less voltage could this have something to do with my motherboard?
The IMC/VTT is directly related to your ram speed/timings. Is your ram default voltage 1.5v or 1.65v? I would be careful of putting the IMC that high. I would try to stay below 1.35v for IMC.
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post #293 of 560
Quote:
Originally Posted by cory1234 View Post
The IMC/VTT is directly related to your ram speed/timings. Is your ram default voltage 1.5v or 1.65v? I would be careful of putting the IMC that high. I would try to stay below 1.35v for IMC.
my ram is rated for 1.5
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post #294 of 560
ok so i turned turned down imc voltage to 1.346 and up the Dimm voltage to 1.575 from 1.550 and everything went well so now i want to figure out what keeping me from getting 4200 without giving it atleast 1.4 on cpu
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post #295 of 560
Thread Starter 
Quote:
Originally Posted by cmatt099 View Post
ok so i turned turned down imc voltage to 1.346 and up the Dimm voltage to 1.575 from 1.550 and everything went well so now i want to figure out what keeping me from getting 4200 without giving it atleast 1.4 on cpu
I would keep your ram timings at spec when overclocking. After you get a stable O/C then you can worry with timings if you want to.
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post #296 of 560
Quote:
Originally Posted by cory1234 View Post
I would keep your ram timings at spec when overclocking. After you get a stable O/C then you can worry with timings if you want to.
Thanks for your help!
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post #297 of 560
Good afternoon, I am new to the forums and had a few questions. You guys have posted already a lot of great info on how to over clock the i7 875, and I am looking very forward to getting it! Will be great to upgrade to a new system. The last system I build was over 4 years ago.

The system below is what I am currently in the process in building. I plan to use it mostly for gaming. I would love to get some input on decent coolers for overclocking, or possibly switching out some things to make it an easier overclocking experiance. I currently play mostly mmos, and rpgs. I have been getting into more FPS lately. I am unsure of the Corsair A70, I was thinking about going for the H50 instead. I been hearing great things about both, but wanted to get some opinions. I am also unsure of my gpu choice. Quite frankly I know the 480 runs hott, and eats up power like its a snack, but from benchmarks and stuff it looks great but may switch to a 470. I know that is slightly off topic.
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post #298 of 560
Quote:
Originally Posted by Behlial View Post
Good afternoon, I am new to the forums and had a few questions. You guys have posted already a lot of great info on how to over clock the i7 875, and I am looking very forward to getting it! Will be great to upgrade to a new system. The last system I build was over 4 years ago.

The system below is what I am currently in the process in building. I plan to use it mostly for gaming. I would love to get some input on decent coolers for overclocking, or possibly switching out some things to make it an easier overclocking experiance. I currently play mostly mmos, and rpgs. I have been getting into more FPS lately. I am unsure of the Corsair A70, I was thinking about going for the H50 instead. I been hearing great things about both, but wanted to get some opinions. I am also unsure of my gpu choice. Quite frankly I know the 480 runs hott, and eats up power like its a snack, but from benchmarks and stuff it looks great but may switch to a 470. I know that is slightly off topic.
Go for the A70 for water cooling ( wont be better than a custom one) or get the Noctua NH-D14 ( i have this) for air cooling they both perform about the same. I have a 480 and i love it the whole heat issue is not a prob if you have good airflow i game with everything up and 1920x1080 still get over 60 Fps or if you want more bang for your buck i would go with 2 sli 460s they beat the 480 and cost about the same either way nvidia is the way to go ati has horrible driver support.
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post #299 of 560
I am convinced by a number of reviews that with stock fans, the Silver Arrow gives slightly better cooling than the D14, and is significantly quieter.


Back on the topic of 875k's, I just got back from an after-work adventure. I went all the way to a Micro Center and bought an i7 875k for $250 + tax.

I am considering an ASUS P7P55D-E Pro to go with it. I guess my questions to those of you who own this board:

Are you happy with the combination of cpu and mb?

Will the mb control cpu fans with voltage (not just pwm)?

Would the ASUS P7P55D-E or the ASUS P7P55D-E LX do just as well with this cpu?
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post #300 of 560
I've had my 875k since July and have yet to OC it haha, I feel bad the mother is sitting under a D14 doing nuffin.
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