Heatsink seated correctly?

J

JamesL

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Nov 7, 2007
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I just ran my e6750 on prime95 at 3.0ghz stock voltage. Core Temp records 52 degrees, but the heatsink is 100% cool to the touch(CNPS9500 with ac5). Even the heatpipes are cold.. does this seem right?
Assuming the heatsinks are supposed to dissipate heat from the cpu, shouldn't the heatsinks warm up?

This is my first time actually building a computer, so my heart skips a beat everytime something unexpected happens.

I have a couple more questions too...
I ran the crysis demo and my computer crashed(rebooted) when I tried enable aax2. What is this due to? Was it a system error, or a hardware error?

Core Temp reports the VID as 1.3375v, What's the difference between vcore, VID, vdroop, and voltage, and which one is the most significant?

Thanks again, and wish me luck.. =D
 
I cant tell my CPU has any load from the heatsink by touch until it gets above 60C and even then it isnt much.
This is with a TRUE 120 heatsink.

52C is a little high for stock voltage, what are your ambient and case ambient temps?
Real temps not motherboard reported as they can be hugely inaccurate.

Whats aax2?

You had best read up on some overclocking guides to learn about the different voltages.
 
Did you apply thermal paste? And if so, is it enough/properly spread so that the heatsink contacts it (and with the CPU)?

Also, the Core Temp VID is the default vcore of your cpu (in bios setting). For example, in Core Temp, my VID reads 1.3375v too.

I hope this helped, somewhat if at all :p. And I sure do hope other people can help too.
 
aa - anti aliasing ..
I don't have a temperature probe or thermometer, but case temperatures feel no warmer than room temperature - about 70-80 Fahrenheit.

I'm not even quite sure what my stock voltage is -
I'm guessing vcore = vcc = core voltage, right?
So my motherboard reports vcore = 1.14v when idle, and 1.29 when running prime95... what does VID have anything to do with it?
My motherboard utility reports the cpu temp as 45@ load. I guess I'm supposed to be looking at the core temperatures, right? and not the cpu temperature.
I used a very conservative amount of arctic silver, just enough to get the cpu fully covered, so i guess I'll try re-sit the heatsink later tomorrow and see if temperature changes.

Thanks again guys.
 
JamesL said:
aa - anti aliasing ..
I don't have a temperature probe or thermometer, but case temperatures feel no warmer than room temperature - about 70-80 Fahrenheit.

I'm not even quite sure what my stock voltage is -
I'm guessing vcore = vcc = core voltage, right?
So my motherboard reports vcore = 1.14v when idle, and 1.29 when running prime95... what does VID have anything to do with it?
My motherboard utility reports the cpu temp as 45@ load. I guess I'm supposed to be looking at the core temperatures, right? and not the cpu temperature.
I used a very conservative amount of arctic silver, just enough to get the cpu fully covered, so i guess I'll try re-sit the heatsink later tomorrow and see if temperature changes.

Thanks again guys.
Click to expand...

Ah I see, I assumed the previous temp was reported by the mobo.
I take it the result you stated was the Coretemp value?
If so, thats not a bad temp :)

If using coretemp, go into the options and Show Delta to Tj.
This will tell you how much headroom you have left.
For safety, leave a delta of 15C minimum to cope with bad readings etc.
Intel only recommend using the motherboard temperature report, not coretemp.
tbh I dont think you can implicitly trust any reading unless measured externally with a calibrated meter.
It doesnt matter though unless you are pushing the very boundaries, the sensors are usually accurate enough to be a good guide for ye normal overclocks.

The setting where you change your CPU voltage is the Vcore.
VID is a rating for the chips max rated voltage. however, I have seen this vary when a chip is plugged in different boards so I dont put value in it.

As you used a tiny sliver of heatsink paste, I'd take it apart and see if it was enough.
If it was then reapply the same amount after cleaning it and you know you are good.
If there isnt enough paste you'll be glad you checked.
I found with AS5 its extremely easy to only have part of the core in contact with the heatsink, its awfully sticky stuff and hates moving.
With heatsinks that dont clamp tight enough, I had this happen a lot.

I gave up on AS5 a while back and used Ceramique. Now I use MX-2.
It also eliminates the risk of getting AS5 on components which can short at high frequency. I killed a gfx cards memory with some!

Immediate crashing when using AA is most likely to be a software problem.
If it runs for a short while then crashes, it might be the gfx card overheating due to the extra workload.
 
Although that being said, don't go overboard in adding more thermal paste; although it's a better thermal conductor than air, it's far inferior to metal, so you don't want to build up a thick layer of it.
 
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