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post #4031 of 10701
Okay, so a while back I posted my 4.5Ghz OC info, and one of my core temps got to 85C during a 14 hour blend. I reseated my hyper 212+ (P/P), and reapplied TIM (the most effective way I could find on the interwebz), and I'm running another blend now. I left this morning for work, and the highest it hit was 81 (same core as before) last night. Looks like I might have dropped a few degrees here, but it still seems like I should be getting lower temps at this OC. Any suggestions? 4.5Ghz @1.35 volts (pll 1.7). Fans are on max at all times. One of my cores is (and was before the reseat) like 8 degrees cooler than the other. Same one is still cooler. I'm thinking maybe the tjmax for my cores is different (maybe higher), but I'm not sure. I don't plan on pushing this chip any harder unless I can get it cooler, although I may tweak with the voltages a bit more to see if I can get my temps down. I'm okay with 4.5 OC my first chip trying. I just want to be sure I'm not missing any other possibilities here. Thanks in advance! Oh, and where are the sisoftware sandra scores at? I think I may have overlooked any links :/
post #4032 of 10701
Quote:
Originally Posted by Arimis5226 View Post
Okay, so a while back I posted my 4.5Ghz OC info, and one of my core temps got to 85C during a 14 hour blend. I reseated my hyper 212+ (P/P), and reapplied TIM (the most effective way I could find on the interwebz), and I'm running another blend now. I left this morning for work, and the highest it hit was 81 (same core as before) last night. Looks like I might have dropped a few degrees here, but it still seems like I should be getting lower temps at this OC. Any suggestions? 4.5Ghz @1.35 volts (pll 1.7). Fans are on max at all times. One of my cores is (and was before the reseat) like 8 degrees cooler than the other. Same one is still cooler. I'm thinking maybe the tjmax for my cores is different (maybe higher), but I'm not sure. I don't plan on pushing this chip any harder unless I can get it cooler, although I may tweak with the voltages a bit more to see if I can get my temps down. I'm okay with 4.5 OC my first chip trying. I just want to be sure I'm not missing any other possibilities here. Thanks in advance! Oh, and where are the sisoftware sandra scores at? I think I may have overlooked any links :/
You should be getting cooler temps. That is for sure.

Don't worry about the temps of the cores being vastly different. That is normal. You just want them to remain under 72c, I think it was.

Edit: The most effective way to apply TIM is to just make a pea size ball in the center of your CPU and put on the heatsink applying even pressure. This might be your heat issue if you followed some weird way and there are actual air pockets in there.
Edited by SightUp - 9/21/11 at 5:31am
post #4033 of 10701
Quote:
Originally Posted by SightUp View Post
You should be getting cooler temps. That is for sure.

Don't worry about the temps of the cores being vastly different. That is normal. You just want them to remain under 72c, I think it was.

Edit: The most effective way to apply TIM is to just make a pea size ball in the center of your CPU and put on the heatsink applying even pressure. This might be your heat issue if you followed some weird way and there are actual air pockets in there.
Different people have different opinions on the temperatures. Some say it's okay for up to 90-95C, although I would hesitate to have my chip running over 80C.

As for the thermal paste application method, the Hyper 212+ uses an HDT design, so you don't want to use that method ideally. I used this one, although to be honest I can't see it making a very large difference.

At 1.36V Vcore on my chip I was hitting no more than 76C, and I'm just running a single stock fan in PWM mode, with a couple of 1150RPM Gentle Typhoons as my case fans.

So I'm not really use what to suggest, Arimis, because 85C seems very high considering your voltage and cooling setup. I'm assuming you have adequate case airflow and don't keep your PC locked away in a cupboard?
post #4034 of 10701
Quote:
Originally Posted by Ellis View Post
Different people have different opinions on the temperatures. Some say it's okay for up to 90-95C, although I would hesitate to have my chip running over 80C.

As for the thermal paste application method, the Hyper 212+ uses an HDT design, so you don't want to use that method ideally. I used this one, although to be honest I can't see it making a very large difference.

At 1.36V Vcore on my chip I was hitting no more than 76C, and I'm just running a single stock fan in PWM mode, with a couple of 1150RPM Gentle Typhoons as my case fans.

So I'm not really use what to suggest, Arimis, because 85C seems very high considering your voltage and cooling setup. I'm assuming you have adequate case airflow and don't keep your PC locked away in a cupboard?
Thanks. Yes, that is the guide I followed for applying TIM, and it seated pretty well imo. I did a test seat, and then, reapplied for final seat. Like i said, It looks like my max core temp dropped from 85C to 81C, but it's still a bit high for my comfort level. If I can't get it below 80C, I'm going to have to lower the clock to sleep at night. I'd really like to stay under 75C for every day use, so I'll probably be drawing back to 4.4 during the summers anyways. You think it's possible to tweak my voltages to get my temps below 80? 75? I've been a bit generous with my voltages so far, not straying too far below the default voltages. I'm thinking I can get my vcore down a bit more if I try.

Another question. What is the deal with hyperthreading. It seems to me that CPU extensive progs will benefit more from it, but that also pushes your core temps to run hotter under stress, no? So maybe I'm at a point where I should either lower my clock back to 4.4, or disable my HT if I want to try to push it any further? Thoughts?
post #4035 of 10701
I always go off of manufactures specs.

Why does everyone put their PLL Voltage to 1.7? Is that a universal sweet spot or something?
post #4036 of 10701
Quote:
Originally Posted by Arimis5226 View Post
Another question. What is the deal with hyperthreading. It seems to me that CPU extensive progs will benefit more from it, but that also pushes your core temps to run hotter under stress, no? So maybe I'm at a point where I should either lower my clock back to 4.4, or disable my HT if I want to try to push it any further? Thoughts?
HT does generate more heat during stress tests, that's for sure. That said, I wouldn't ever disable it having bought the 2600k; I really think your temperature issue lies somewhere else. What's your ambient?

1.35vcore does seem high for 4.5GHz
    
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CPUMotherboardGraphicsRAM
i7 2600K @ 4.6GHz ASUS Maximus V Formula Gainward Phantom GTX 680, 2GB Crucial Ballistix Tactical 16GB 
Hard DriveHard DriveHard DriveCooling
Samsung 840, 250GB WD Black, 2TB WD Raptor, 150GB Corsair H100 
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post #4037 of 10701
Quote:
Originally Posted by FoLmEr View Post
HT does generate more heat during stress tests, that's for sure. That said, I wouldn't ever disable it having bought the 2600k; I really think your temperature issue lies somewhere else. What's your ambient?

1.35vcore does seem high for 4.5GHz
This. Disabling HT would mean that you spent £100 (or equivalent) extra on a 2600K just to get 2MB extra cache.
post #4038 of 10701
Yeah, I would have opted to keep HT on with this CPU anyways. I just wanted someone else to tell me I'm not crazy. Like I said, my voltage could probably be tweaked a bit. I'm gonna fidget with it when I get home today to see what I can do with it. My ambient is 23-24C depending on the time of day. My mobo is usually at 27C, so I doubt it's a case issue. I suppose it could be an exhaust fan that is a couple of inches from the exhaust from my CPU cooler (hyper 212+ push/pull). I'm really thinking this is a voltage issue, from what I'm reading on the forums. I don't want to hijack this thread, so I'll probably create my own thread if adjusting the voltage doesn't help. I just wanted to poke for a few quick opinions. Thanks again guys!
post #4039 of 10701
Thread Starter 
I would almost guarentee it's because of the GPU's lol. Your ambients seems fine and your temps coudl be better, but I don;t think there is much more that you could do. Try reducing the PLL voltage further, work your way up from 1.5v, if you can find a value that is less then 1.65v then thought should help temps.
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it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
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post #4040 of 10701
Okay, I set offset to +0.2V, turned off C3/C6 and turned on EIST and C1E, and entered Windows.

Voltage was reading at 1.15-1.16V at idle, pressed run on Prime95 Blend and got an instant crash. No lock-up, no BSoD, my PC just instantly switched off and restarted itself.

What do?
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