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Q9450 (overclocked) cooling

Discussion in 'Overclocking & Cooling' started by rtwjunkie, Dec 13, 2012.

  1. rtwjunkie

    rtwjunkie

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    Apparently I punished myself on one of my side projects, and decided to overclock the two things that should not go together: An EVGA 750i FTW motherboard and a Q9450. The 9450 isn't the most O/C friendly cpu in the world to begin with. Added to what is not a beginner's O/C board, and it's frustration.

    So, with the amount of volts needed to reach a stable 3.2Ghz (1.33v per CPU-z), and higher volts on the already hot NB nearby, the Zalman CNPS9500AT has a hard time keeping up. Idle temps are between 43 and 48 soon after boot. However, the bigger issue are load temps and idle temps AFTER full load.

    On full load, the cores vary between 65 and 69. This cooler never seems to be able to bring temps down after. They are usually idling (around ten minutes after) between 52 and 57. That's a really high idle, as it doesn't leave much overhead. Part of it may be that I only have 1 exhaust fan and 3 intake fans, so there is a heat buildup (adding one more exhaust fan to top this weekend), but I also think the cnps9500 is inadequate.

    I've been doing alot of reading of reviews, and I am very much thinking to get the Xigmatex Dark Knight II Night Hawk Edition. How much better do you think it will cool than the 9500? Does anyone have personal experince with that cooler on a Q9450?

    Thanks in advance to any thoughts you send my way!
  2. TC-man

    TC-man

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    Hi,

    What's the VID of the Q9450 chip? Look that up with CoreTemp; a lower VID indicates a higher overclock potential with relative low voltage, but it not a rule. And how about the stepping? E0 or C1?

    As for the Zalman CNPS9500AT, I think it's not the best for good OCs, especially when it comes to Core2 quad core CPUs. Buy yourself a Cooler Master Hyper 212 Evo or Plus, both should do better when it comes to CPU cooling. If you can, try also cooling down the Northbridge with a fan which could help.
  3. rtwjunkie

    rtwjunkie

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    For VID, you mean voltage range? it's 0.85 to 1.3625. As for the stepping it's C1, I think all Q9450's are C1, as is this.

    I see you're thoughts are the same as mine on the CNPS9500AT. I think it would be great for early dual-cores and not overclocked chips. In that respects it's miles ahead of the stock cooler. I will check out those CM coolers as well. Thanks!
  4. Aquinus

    Aquinus Resident Wat-man

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    No, the VID voltage controls the VRMs and the voltage supplied to the processor.

    http://en.wikipedia.org/wiki/Voltage_Identification_Digital#Voltage_identification

    rtwjunkie says thanks.
  5. TC-man

    TC-man

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    Nope, not really the range. Just open up CoreTemp and you will see the VID. On paper, the lower the VID value the better the OC potential. I have another PC with a Q6600 with VID=1.2625V and can clocked from 2.4 GHz to 3.4 GHz with CPU Vcore=1.3375V in bios.
    Last edited: Dec 13, 2012
  6. rtwjunkie

    rtwjunkie

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    OK, will have to check out this evening. I'm thinking it's high, not low, because the Q9450 is not regarded by very many to be a great overclocker. The heat off this thing is insane, btw!
  7. rtwjunkie

    rtwjunkie

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    @TC-man: I see you are still using the e-8400. I love that chip! I still have mine, and was seriously thinking of swapping it out with the Q9450 if I couldn't get the temperatures down.
  8. TC-man

    TC-man

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    Frostytech has reviewed the Xigamatek CPU Cooler you mentioned. Their test shows that the Dark Knight II Night Hawk cools significantly better (in both high and low RPM fan-speed situations) than the Zalman CNPS 9500AT. The Xigmatek CPU cooler cools even better than the mentioned CM Hyper 212 Evo which is already a pretty good CPU cooler, though of course Xigmatek DKII Hawk is more expensive (I really like the black color!).

    Yes, I am still using the C2D E8400, since I am not much of a gamer (at least lately). I don't think the Q9450 in general is a bad chip for good overclocks, since many people can get it to run at 3.6 GHz or even higher, though you may need to use water-cooling before reaching 4.0-4.3 GHz; E0 stepping mostly give you better OC results. I think your problem with the Q9450 overclock is probably the motherboard; nForce aren't really known for the really good overclocks with Intel C2Q CPUs. For the best overclocks of C2Q you really want to use an Intel X38/X48 motherboard, though those Intel P35 or P45 motherboards can give you pretty good overclock results too.
    Last edited: Dec 13, 2012
  9. johnspack

    johnspack

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    Yeah, I think the 9500 is a bit weak for that cpu. Although I would check your tim ect, as in what kind (generic vs mx4 ect). I used a zalman 9700 on my q9450, and at 3.8ghz I had lower temps than you. I think I got 3.6ghz at almost stock volts, 3.8 required a bit more. I'd recommend ocable 1066 ram, I ran at over 1100mhz to achieve those ocs.
  10. rtwjunkie

    rtwjunkie

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    @TC-man: yes, I agree about the n-force boards and quads...I read all 189 pages on another forum just on that board. I'm not gonna pour more money and get another mb on older tech, so if a new cooler doesn't help, I may go back to the e-8400 since the 750i seems to have been made for that cpu. I appreciate your advice!
  11. rtwjunkie

    rtwjunkie

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    Wow! Simply wow! Meanwhile I've upped the cpu voltage NB, FSB, DIMMS, and adjusted GTL's (to allow for lowering of FSB volts), and 3.2 is the maximum I can get stable!
  12. KainXS

    KainXS

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    I used to have that cooler with my Q8400 and it will run hot pretty much always if you go above about 1.25v or so, In prime95 I remember it hitting nearly 75C which is when I swapped it for my ol Geminii.

    like everyone else said though check your vid if its high you just might be well . . . . . . you know.
  13. EarthDog

    EarthDog

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    The 750i FTW wasnt exactly a steller board. Its more entry level than the 780i/790i which was the premier chipsets from them at the time. FSB tended to be much more limited on the 750i compared with the 780i/790i. That said, the Q9450 is a HIGHLY overclockable CPU given the right board (read some P45 boards) and cooling. It just needs a lot of FSB is all since it has a low multiplier. I mean hell, I benched one at 4.8Ghz on water (cooled by outside air at ~45C). 3.8GHz+ should be in the cards with a proper board and cooling.
  14. KainXS

    KainXS

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    If your only stable at 3.2, basic question but did you check your timings and other mem settings?
  15. EarthDog

    EarthDog

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    ohhhhhhhhh, good thinking!!

    OP - post some CPUz screenshots of your memory and spd tabs please!
  16. BarbaricSoul

    BarbaricSoul

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    I had a Q9650/750 FTW combo. I actually had pretty good OC'ing results from it. Granted, the EP45 UD3P that replaced it did 500 fsb, I was still able to get 475 FSB out of it using DDR2 800 Crucial Ballistix RAM unlinked. Keep your voltage below 1.37 volts in CPU Z and keep trying to up your FSB.

    BTW, here's the cooler I used. Kept my Q9650 OC'ed to 4.25 ghz below 70'c at full load crunching. http://www.techpowerup.com/reviews/Gigabyte/GPower2Pro/1.html
    Crunching for Team TPU 1 Million points folded for TPU
  17. EarthDog

    EarthDog

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    1.37v is a bit conservative IMO (that is intel's limit for stock voltage for that CPU). Im sure 1.4 24/7 is ok.
  18. BarbaricSoul

    BarbaricSoul

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    your probably right
    Crunching for Team TPU 1 Million points folded for TPU
  19. rtwjunkie

    rtwjunkie

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    Yes, I've followed over 180 pages of advice, much of it from a core group of posters who got very familiar with all the ins and outs of the 750i FTW and memory settings. 4 sticks of RAM on that board absoloutely cannot run higher than DDR800 and must be unlinked. I've made every adjustment possible to FSB, MCH, NF200 etc possible, including much trial and error with GTL's in order to lower the FSB enough not to burn up the cpu.
  20. rtwjunkie

    rtwjunkie

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    OK, I'll get on that this evening when I get home.
  21. rtwjunkie

    rtwjunkie

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    But going to the max on cpu volts is just gonna make it run hotter. First thing I've got to do is replace the cooler. Then perhaps I can work on clocking it higher.
  22. rtwjunkie

    rtwjunkie

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    I appreciate the advice and help. I will definately post some cpu-z screenshots tonight.
  23. EarthDog

    EarthDog

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    The temps arent the issue if you are loading under 70C. Stress testing keep that CPU at 80C or less (higher wont damage it, but 80C is a good #). However, pushing farther will require more volts and of course temps go up with that, correct.
  24. rtwjunkie

    rtwjunkie

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    So, you think it's all good under 70? I also have a QX9650 on yet another MB (O/C to 3.41Ghz) that I absoloutely can't get to 60 under full load....so I was kinda using that as a baseline since it is an even hotter cpu...or reputed to be.

    Posting up cpu-z and core temp screenshots in a minute.
    Last edited: Dec 14, 2012
  25. rtwjunkie

    rtwjunkie

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    I've attached CPU-z and core temp at initial idle, then cpu-z on the memory tab, and then agin under load. I was able to see that the VID is 1.2375. Is that high?

    Attached Files:

    Last edited: Dec 14, 2012

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