What happens if CPU temp hits 90°c or more?

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JyotirmayGoldsmith

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Apr 15, 2014
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Hello. I have modded x5460 3.16ghz to lga775 and Deepcool ICEEDGE400_XT as cpu cooler which is rated 130W and local cheap heat sink. I play games and it hits 90+° Celsius. Ideal (my pc never run ideal 40% cpu usage) 68°c! What happens if i continue to run on 90°c for 3-4 hrs.. It's been over month I'm doing it :/ don't have money to buy AS5 or any good thermal paste!
 
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Even a small tube will last for many CPU installations. Where can you buy?
 
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Then it's extremely unlikely to fix the problem by using thermal paste. Cheap thermal paste is only 2-3C hotter than best paste in most situations. You need to look at how you mount the cooler or possibly a new cooler.
 
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JyotirmayGoldsmith,

Coolers with 92mm fans are low-end to mid-range, which may be somewhat inadequate, since your processor's Thermal Design Power (TDP) is 120 Watts.

What is your ambient temperature? Normal or "Standard" room temperature is 22°C or 72°F, so high ambient temperature will adversely affect Core temperatures.

Although your Xeon X5460 has Thermal Specifications of Tcase 63°C and Tj Max 100°C, Tcase is not the limiting Thermal Specification; Tj Max is, which is the temperature that your processor will "Throttle" or reduce Core speed to prevent thermal damage.

Tcase is a misleading Specification because it's a factory only measurements on the surface of the Integrated Heat Spreader, so Tcase is not Core temperature, which is considerably higher. Further, Tcase is only relevant to the stock cooler.

Although 90°C Core temperature isn't quite hot enough to cause Throttling, it’s not advisable to push your CPU to the thermal limit, just as you wouldn't operate a vehicle with the temperature gauge pegged in the red “hot” zone.

If your hottest Core is within a few degrees of Throttle temperature, your CPU is already too hot. The consensus among highly experienced and well informed system builders and overclockers, is that cooler is better for ultimate stability, performance and longevity.

As such, all agree it's wise to observe a reasonable thermal limit below Tj Max. So regardless of your rig's environmental conditions, system configuration, workloads or any other variables, sustained Core temperatures above 80°C aren't recommended.

Here's the recommended operating range for Core temperature:

80°C Hot (100% Load)
75°C Warm
70°C Warm (Heavy Load)
60°C Norm
50°C Norm (Medium Load)
40°C Norm
30°C Cool (Idle)

Also, you might want to read this Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

CT :sol:
 
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See 120mm fan won't fit my MB or case even if I remove the case door/window whatever. + this one has 4 heat sink pipes. What if I buy 212x and it doesn't fit :/ i get random shut down because of this :'( Do I have to buy a CPU COOLER necessarily? If yes then which one will fit 775 socket and small MB! :) suggest!
P.S room temperature is 30-32°c (NO Air Conditioner!) (outside temprature 40-45°c)
.
Let's just think it is 2007 and this X5460 launched. Whuch cooler would you use? It's 2007 not 2017*!
 
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JyotirmayGoldsmith,

Your ambient temperature is quite high at 8 to 10°C above normal, which is contributing to your problem.

Do you have enough fans in your case?

Is your case in a well ventilated area?

Are your case and fans free of dust?

What happens if you remove the case covers?

Most of today's coolers are superior to those available 10 years ago. There are plenty of inexpensive 120mm fan mid-range air coolers that are designed to mount on several Intel sockets, including LGA 775, regardless of motherboard size.

If your cooler size is limited by the dimensions of your computer case, then you need to identify what the cooler clearance actually is. This information is usually available on the manufacturer's website, or on various seller's websites.

As has already been suggested, the first item you need to address is replacing your thermal compound. You can then re-test your Core temperatures and determine whether further action is needed.

CT :sol:
 
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My case cover is always open.
I clean fans case everyday
There's NO extra fan in my case it's always open!

Hey! I did following things.
1.Just increased my GTX 680 fan profile to 70 with MSI Afterburn.
2. Reoriented my cpu cooler to different direction with same thermal compound
3. Using Desert cooler in my room
.
Results. 1. GPU temp on 100% doesn't get higher than 65-70°
2. CPU temp in 45% usage drops by 12°c comes to 56°c and 100% load temps drops by 20°c comes to 70-75°c :)
.
.
Also How's this fan? ||||| ALSEYE EDDY-120R CPU Cooler 4 Heatpipes TDP 220W 2 PWM LED 4pin 120mm Fan with Aluminum Heatsink Radiator for LGA 775/115x/AM2/3
http://s.aliexpress.com/e6Z7BFfM
(from AliExpress Android) ||||||
 
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Never heard of that brand but it would be much better than what you have if it's actually do at least 200w TDP or the full 250w like it claims. Do note its fan is quite crap if it's only rated 40,000 h. For comparison Noctua MTTF is 150,000h.
 
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Realistically I would expect similar performance to Hyper 212 Evo which is also $25, but worse fans. If I remember correctly the EVO fan is around 60,000-80,000h and the Hyper 212X with the much better fan is rated 120,000h which is quite good for a budget fan.
 
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