e6600 stock speed stock heatsink temps

[brandonb]

I have a Core 2 Duo 2.4 ghz e6600 with stock heatsink and stock speed (no overclocking).

I've been running PRIME95 small TTF's for about 30 minutes or so. I just reseated my heatsink (stock) with AS5 instead of the thermal pad. I'm wondering if my temps are ok.

I'm using CoreTemp to measure degrees.

At load I'm 20 degrees to Tjunction Max (85c).
At idle I'm 48 degress to Tjunction Max (85c).

Does that sound ok? I'm just curious if I got everything set correctly. I'm not sure what I'm really doing. lol. As I usually just do stock everything all the time.

 

[VirtualLarry]

20C to TJMax on load? That does sound high for stock speeds. Although, did the stock heatsink come with a half-height unit (Like the Celeron 440s), or a full-size unit?

 

[brandonb]

Thanks for the response. It was a full height.

I just put together a 3.16ghz e8500 wolfdale, and did everything the same and I'm running at 75c under load. Which is 30 degrees to Tjunction Max. That is a half height heatsink.

I'm thinking I'm applying too much AS5 on both the CPU's, what do you think?

 

[MyLeftNut]

I think the problem is the stock heatsink itself doesn't get mounted on with enough pressure using those plastic stock push-pins on them. For example, I've installed a couple e4300's and temps were pretty high to begin with, and to test I pressed down hard on the heatsink to increase the pressure and temps dropped like 20-30C. What you can do is pickup some 1 or 1 1/2" bolts with some nuts, remove the stock push-pins, and bolt the heatsink down onto the motherboard either using just the bolts and nuts or adding springs between the heatsink and bolts for added pressure without bending the motherboard too much.

With AS5, just the size of a BB is good enough, as long as you don't have a concave CPU to start with.

 

[toadeater]

Does the Thermalright bolt-through kit work with Intel heatsinks?

 

[MyLeftNut]

I actually have that thermalright bolt-through kit installed with my aftermarket cooler. It depends on how you install the bolts, but the way I needed it installed, which was to have the bolts protruding up and out of the motherboard rather than bolts facing down. In this case, the thermalright bolt-through kit didn't work very well since the bolts themselves are not fully threaded from end to end and that the non threaded lengths of the bolts were very much thicker in diameter. The backplate did however prove to be somewhat useful.

I would suggest you pickup a backplate alone. Just make sure the holes in the backplate are large enough for the bolts to go through or even larger as the bolts don't need to screw along the threading.

 

[myocardia]

Brandon, you need someone to show you how to install an LGA775 heatsink, because you haven't done it correctly. 20C to TJunctionMax is hot, especially when you aren't overclocking. Hell, it's too hot if you are overclocking. You're supposed to install the heatsink with the motherboard removed from the case, so you can put your hand on the backside, while you press on the pins to seat them.

 

[brandonb]

I have the cpu's and heatsinks mounted correctly. All 4 pins are locked into place and they are very secure. I think the problem is the amount of Artic Silver 5 I'm using. I put a line from top to bottom in the middle of the CPU like the website tells me, but I'm thinking I have too much or too little, or not enough in the right areas.

I believe I'll remove the CPU's sometime over the weekend (probably Sunday) and reapply the Artic Silver 5. Does anybody have a good method of applying that? I think I'll try the credit card method and spread the stuff over the entire cpu, that way I know I have it covered.

 

[MyLeftNut]

I don't think you applied too much. I've done that line method a few times before and there wasn't any noticable difference in temps. It certainly wouldn't even come close to explaining the high temps you were reporting. Maybe just a few degrees at most due to too much paste. Try running prime and a temperature monitor, let it run for a few mins to get to high temp, then apply pressure on the heatsink with your fingers. See if temps drop at all.

 

[brandonb]

Originally posted by: MyLeftNut
I don't think you applied too much. I've done that line method a few times before and there wasn't any noticable difference in temps. It certainly wouldn't even come close to explaining the high temps you were reporting. Maybe just a few degrees at most due to too much paste. Try running prime and a temperature monitor, let it run for a few mins to get to high temp, then apply pressure on the heatsink with your fingers. See if temps drop at all.

Didn't make any difference at all, not even a degree. I pressed in the center, and the sides one at a time, and then two at a time, up till I had all 4 sides pressed against. I'm running 64c today as its a bit cooler outside and in the room compared with 66c yesterday.

That is with the e6600. My other question is the new computer I built yesterday above running at 75c, the 3.17 ghz. Is that normal or also too hot. Its delta to tjunction max was higher at 30 degrees, compared with the e6600 at 20 degrees. Just wondering if that is normal or not too.

 

[MyLeftNut]

That's way too high for a cpu of that die size. Maybe the ihs is concave or convex. Did you clean off the previous stock thermal pads off the heatsink and cpu properly? I mean, clean without a trace that it was even there. How's the circulation in the case? What are the temps like if you just left the case off and lying flat?

 

[brandonb]

Yeah, I got isopropyl alcohol and wiped the thermal pads off and scrubbed both the CPU and the heatsink clean and then went over it a few more times just to make sure it was all gone. Circulation in the case, I think its fairly standard, I have a big fan in the back (I don't know the type but it basically takes up the entire fan slot at the back of the case that is like 4 inches by 4 inches) I also run it with the side off to see what would happen but the same results.

I don't know if its concave or convex, I will try a straightline on it later when I disassembly (sunday as I'm busy all weekend) to see if i see any noticible gaps, otherwise I'll just reapply the AS5 (based on what I see when I take the cpu off, if it looks caked on, ill use less, if its barely covering ill use more)... And see what happens.

Thanks for the help in any case.

 

[MyLeftNut]

If you got time, lap the cpu and the heatsink as well. You should see quite an improvement from that.

 

[brandonb]

I just took apart the new computer the E8500 which was idling around 60C... (and the fan as speeding up even at idle which was driving me bonkers)... It looks like the artic silver was caked on the cpu and heatsink, and even overflowing onto the sides of the cpu after I squished it down. Its pretty heavy on there and its probably way too much which I'm thinking is the cause of my high temps. I'm going to try again with less amount and see if it helps. Wish me luck.

Edit - I just applied the Artic Silver 5 using the credit card method to verify I had it covered correctly and not too much/too little. I applied the heatsink and did my test, and to my suprise, my CPU got even hotter. So I took it apart once again, and when I took the heatsink off I noticed that not even 25% of the heatsink had any AS5 on it. So I'm thinking its not making good contact with the heatsink.

I was getting 82C degrees this time vs 75c.

I will buy some sand paper and try lapping it to see if it works better. its obvious to me that its got problems.

 

[AmberClad]

Originally posted by: toadeater
Does the Thermalright bolt-through kit work with Intel heatsinks?

I don't see why it wouldn't. There are certain pushpin heatsinks that might not be able to take the bolt-thru kit, because the fins are directly over the pushpin holes (maybe the OCZ Vendetta 2?). The bolts that are used with the kit are quite long.

 

[brandonb]

Originally posted by: MyLeftNut
If you got time, lap the cpu and the heatsink as well. You should see quite an improvement from that.

Thanks for the suggestion. I've partially lapped the cpu with 400 + 600 grain sandpaper (thats all I could find) but in the process of doing so I noticed that the edges of the cpu were coming off, and the inside was not. Obviously not lining up very good. Conclave, or whatever. Just for fun, even though I still see plenty of scratches in the CPU with the 600 grain, I was able to get the temps down indicating I am helping getting the heatsink to the CPU... I'm now running between 70-73c (vs 75-85c previous) with the E8500 even with my crappy lapping job.

I'm going to go over it later when I find better sandpaper. Thanks. Hopefully by the end of the day things will be within proper specifications.

 

[brandonb]

Crap. Lapped the hell out of the CPU and heatsink on the E8500 with 400, 600, 1000, 1500, and 2000 grain sandpaper. I noticed some imperfections in the heatsink. The CPU looks like a mirror after I sanded it and washed it with Alcohol. Applied the AS5 and I still get crappy results. 55c idle and about 70-72c full load according to core temp 0.99.

I'll try the E6600 now. Since both CPU's are showing high temps I wonder if I'm doing something wrong here. I don't know what it is though. I've tried the line method with AS5 (thick and thin), BB dot in the middle, 2 dots ontop and bottom where the cores are, credit card thin spread across the entire IHS. Bah. Oh well I've voided the warrenty on the E8500 by lapping it, so I guess I'll just have to deal. Its only $275 and should last awhile I hope even with the high temps.

I think I'll just try no AS5.

I just applied a ton of AS5 on my E6600 and now the temps are about 54c at full load. So I think that one is responding better to the AS5. I'm going to try the E8500 again and apply a boat load there and see what happens like I did with the E6600 and see if it helps that computer.

 

[VirtualLarry]

high temps aren't the end of the world as long as you're stable. My E2140s are stable even up to 9C from TJMax, which is pretty dang hot.

 

[bmxp]

I have an e6550 and It's OC'ed to 2.6 from 2.3. Nothing big on the stock cooler... My idle temps are fairly low... mid to low 30's... full load I've seen a high of 60*C Depending on room temp. I do have a Antec 900 with a 120mm fan blowing from the front to the CPU and the 200mm exhaust fan helps i'm sure.... I'm also using core temp to monitor my temps... as well as CPUID HW montior

I put AS5 on mine after i scrubbed off the OEM stuff... No lapping just slaped them together and booted up.

 

[AmberClad]

I just don't think the stock HSF is too great of a cooler (especially the "shorty" variant). I wouldn't expect awesome temps from it. It's fine for running at stock though.

Also, OP doesn't need to use that much thermal paste. Especially on a lapped CPU, one tiny drop in the middle is all that's needed. I prefer to just let heat/pressure spread it out. The core in smack dab in the middle anyway, so there's little benefit to manually spreading it out to the sides of the heatspreader.