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Intel 45nm Club - Page 33

Poll Results: Which 780i MOBO would you recommend other 45nm users?

Poll expired: Apr 7, 2008 This is a multiple choice poll
  • 40% of voters (25)
    EVGA 132-CK-NF78-A1
  • 9% of voters (6)
    XFX MB-N780-ISH9
  • 1% of voters (1)
    ASUS P5N-T Deluxe
  • 6% of voters (4)
    MSI P7N Diamond
  • 19% of voters (12)
    ASUS Striker II Formula
  • 21% of voters (13)
    Other
61 Total Votes  
post #321 of 517
Quote:
Originally Posted by redalert View Post
I currently have my Q9450 @ 3.2. I can set my bus speed to 425 with 6x multipler with +.03 on my FSB and NB voltages and cant even get to the post screen. I tried different things with no luck. Im not really sure what the problem is I had my e6750 @ 3.4 with no problems at all with normal NB and FSB voltages. Im guessing its the chip I even underclocked the memory to remove that out of the equation.
I think you should be getting better results with 7.5x or 8x multiplier. I have the Q9300 and I know it is maxed at 7.5x but I have got mine to 3.4 with no problem. I also did it with only 1.275v and I also lowered my NB and I was still stable.
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post #322 of 517
Quote:
Originally Posted by redalert View Post
I currently have my Q9450 @ 3.2. I can set my bus speed to 425 with 6x multipler with +.03 on my FSB and NB voltages and cant even get to the post screen. I tried different things with no luck. Im not really sure what the problem is I had my e6750 @ 3.4 with no problems at all with normal NB and FSB voltages. Im guessing its the chip I even underclocked the memory to remove that out of the equation.
Only +0.03 on the NB? So like 1.28v? You'll probably need more like 1.45v for the kind of bus speeds your talking about. Try taking it up to 1.4v and seeing if that helps.
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post #323 of 517
thats the max voltage for nb and fsb I cant raise them any higher than +.03 over their normal voltages
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post #324 of 517
Are you sure you don't mean +0.3v? That's what this review says the BIOS does....
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post #325 of 517
yea its .3 not sure where I got the .03 from
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post #326 of 517
in that case, how much vcore are you giving your chip? My q9300 can take a 460FSB, so I'm having a hard time imagining your 9450 won't do 425.

And are you sure your RAM is getting enough voltage? Your board gives every DIMM 1.8v, even if they need higher. So if your DIMMs require 1.9 or 2.0 or something you'll have to overvolt that manually.

Also, what's the cooling situation on your NB? It's possible that the 1.55v you're giving it is overheating it if you haven't upgraded from stock cooling. At a minimum you should always remove the stock thermal pad and replace it with a decent thermal paste (AS5).
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post #327 of 517
I have the memory voltage set to 2.1 did that manually. I have vcore set to 1.356 right now, I did have it at 1.362 but it didnt help any. The NB has stock cooling I could try adding some AS5. Someone else here is having trouble with this chip also http://www.overclock.net/intel-cpus/...ml#post3857036
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post #328 of 517
Hmmm... maybe the q9450 really just isn't a good OC'er? And yeah, don't go any higher with your vcore... and I'd even try to stay under what you're at now. These 45nm chips don't like lots of voltage.

Do try switching up the cooling on your NB... my recollection is that the DS3L doesn't have a stellar heatsink on the NB to begin with, and if there's a crappy TIM it isn't going to be transferring heat off the chip very quickly anyway. At 1.55v I wouldn't be surprised if your NB is overheating.

Another thing to try might also be reducing some of your voltage. I don't know how good the power regulation is on the ds3l, but I know that voltage reductions frequently improve stability on the p5n-e (because of lousy power reg--basically if you're pushing too much wattage around the board can't keep up, producing instability). Maybe try 1.45 on the NB and only like +0.1-0.2 on the FSB and see if that produces better results, with your vcore at around 1.32v.

Also, what's the VID on your chip?
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post #329 of 517
well currently I have the fsb and nb at +.2, I couldnt get it stable any other way. I will have to see if I can get it stable with lower vcore the voltage drop with the mobo is a problem idle 1.312v load 1.296v seen it drop to 1.28 at times. My VID is 1.225
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post #330 of 517
Ok, I think that's a pretty high VID for the 45nm quads I got lucky with mine at 1.1625.

That kind of vdroop is normal. The p5n-e droops at around 0.08v under higher vcores

I'm sure there's a pencil mod for your board, you might try that to improve the droop....
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