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post #311 of 560
Quote:
Originally Posted by ehume View Post
I found this in another forum:



Since I am trying to decide on an Asus vs a Gigabyte board for my new 875k, I am concerned whether this is a global problem with Asus. His board is a p7p55d Evo.
I haven't heard about that on ASUS...I do know EVGA has and issue where it keeps reseting the multiplier back to default..but to turn it off you need to turn off some settings...I forget which ones. EVGA forums tells you...maybe a similar issue with ASUS if that is the case.

@Ghostleader
Sounds good. I think EVGA came out with a new bios 71 i should have those turbo settings if I am not mistaken...Might even be on the 70 Bios...But its been a while sinc ei touched my P55 Micro. I just WC my GTX480 so I am not planning to upgrade anything for a few years....I think I am set with everything at the moment.
RES > PUMP > 360 RAD > CPU > 120 RAD > GPU
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post #312 of 560
So what's this "turbo unlocker" thing and it's importance?
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post #313 of 560
Ghostleader explains the Asus Turbo Unlocker.
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post #314 of 560
Ok, so here goes OC round 2 for me. The first OC was only at 3.48Ghz with all four cores and 3.6 single. I really did not get a good result this time and decided to ask for some help.

I would like to use the Turbo Unlocker only for this OC since that's why I bought the 875k.

I currently have BIOS set-up at
+7 (3.857Ghz)
+6 (3.724Ghz)
+6
+6.
Bclk is stock at 133
However, the Temps are just too high to be acceptable by me. 70 max on core 1 and 2. My idle temp has also increased even at stock settings, even before I OC'd anything. From like 22c to 30c at idle. This has me thinking that maybe I need to re-seat my 212+. But, I added a P/P configuration and an extra 120 in the bottom of the case, and still got no real difference.

Ram is at 1600 and Rated voltage of 1.5v

CPU Voltage is set from Offset to MANUAL and the voltage itself is at AUTO. I tried going with 1.3v for a +7 speed bin OC, and that gave me like 80c temps.

I am going to go back to +4,+5,+5,+6 for now and re-runinng some LinX and Prime95 small FFTs for a bit with auto voltages except ram at 1.5v.

I'm not sure, but I think its kinda strange that when I set the core affinity on Prime95 down to 2 cores, the multi didn't increase past the +6 speed bin, it just sat at 3.724Ghz instead of jumping to 3.857.

Regardless of what I have said above, I don't want a 4Ghz OC since the temps on my 212+ won't ever be able to handle that. However, I would like around 3.6-3.7Ghz on all 4 cores under load while still having the SpeedStep enabled to keep it at 1.2Ghz @ 0.912 volts when I'm just browsing the web and such.

Hopefully somebody has a clue as to what I do to get the thing nice and stable in a comfortable Temp range.

Oh yeah, and a big thanks to everyone here for the info already provided.
post #315 of 560
@SOCOM_HERO

Just went through all your posts in this thread. You make no mention of ambient temps, which are crucial in reporting load temps.

That said, 1.3v and more is not unusual for a Lynnfield OC'ing at 4GHz. My 860, for example, needs a 1.3125v setting. It runs so hot that I upgraded from a Megahalems to a D14. You only have a 212+, which is at least two notches below a Mega. The 212+ is usually up to cooling the Nehalems, but the Lynnfield is a bigger challenge. You might need a better cooler for the job.

---P7P55D-E owners---

I'm getting the distinct impression that the Asus boards are not as good at traditional overclocking as Gigabyte boards. I read a review of the P7P55D-E Premium last night - the top of the P7P55D-E line. They could not get bclk over 207MHz, even with the cpu and mem multipliers set to minimum, even with voltages set fairly high for my taste.

Using Auto voltages (Vcore maxes to 1.396v and Vtt at 1.41v) my board will boot at a bclk of 225MHz, and I can sqinch it up in software to 232MHz (it crashes at 233MHz). My board and cpu will boot at 22x205MHz, which I can by software creep up to 22x212MHz, for a cpu clock of 4664MHz. These are numbers I have validated with CPU-Z.

I have never seen anybody report numbers like that with Asus boards, while with Gigabyte boards I do not seem to have unusual numbers. The one big advantage the Asus boards have is the ability to adjust the Turbo Boost. As Ghostleader has shown, that allows a chip to have a very low bclk and yet push up to 4GHz when needed, which allows the cpu to avoid long stretches of relatively high voltages yet perform mightily when called to.

Would you Asus board owners agree? Is this summary approximately correct?

@VW_TDI_02: your settings will not let me send you a return PM. I will be using my 860 for other projects.
Edited by ehume - 9/26/10 at 1:06pm
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post #316 of 560
Ambient Temps are around 22-24c (72-75F). LinX test was stable after 20 runs with 2GB ram.
I really don't need a 4Ghz OC, but again, I would like a stable temp range to work with at load. Maybe my Cooler isn't seated properly, but when I originally did my stress tests a few months ago, the temps were in the low 20s idle and mid to high 60s at load under LinX.

I am debating on whether to reseat the cooler, and think I will do so just to be safe. I will also re-apply the Arctic Silver 5 in the method described here. at the very bottom of the page.

I have also heard that AS5 is not a good TIM for HDT coolers...but its either that or the stock TIM that comes with the hyper 212+....and I figure that AS5 is still better than that, even with the "break in period" that can be a bit long....I'll probably switch to MX-2/3/4 when I get a new cooler in the distant future....
post #317 of 560
80-way TIM test.

Shin-Etsu G-751, 1gm for $4 + free shipping. I have some. I don't use it because it is a little thicker than I like. But if I had an HDT cooler like the 212+ this is the TIM I would use.
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post #318 of 560
Ok, so I re-seated the cooler and re-applied the Arctic Silver 5 since it was either that or the stock TIM that comes with the Hyper 212+, granted that might be better, but it spent the extra $10 on AS5 so what the heck....



Temps are a bit better, but it is still running at 27c idle BUT the load under LinX is around 68-69c, so that is better.

I think a new cooler might be in order later on, but for now I'll take what I got and leave it. The first time I definitely applied too little TIM and there was a lot of places that air was probably getting in. This time I stuck to the method in the link in my above post and I believe that it was the best way to apply on a HDT cooler.

If I get a new cooler this holiday, It'll be either a higher end air cooler or something like an H50/H70 or the ALC from CoolIT.

Not sure if its worth it to go beyond what I have with my OC now since the temps will still probably be too high.
Edited by SOCOM_HERO - 9/26/10 at 7:20pm
post #319 of 560
Quote:
Originally Posted by SecrtAgentMan View Post
I hate that kids voice, sounds like a slightly manlier Justin Gayber.

OC'ing isn't that hard, read this if you want, probably one of the best guides out there IMO.

Love the stuff that Miahallen does.

EDIT: Just put up the latest revision from Mia
Definitely going to use that guide in OCing my new 875k. Thanks
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post #320 of 560
Hey guys....I'm glad you all like my guide...
I've been hoping to get it stickied for your forum, but the thread I created hasn't been getting any love....can you guys bump it for me and ask for "sticky status"?
http://www.overclock.net/intel-cpus/...i5-i7-3-a.html
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