Can shortage of power supply or incompatibility cause GPU to overheat?

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Tahmeed Bin Enam

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my friend has just bought a new ASUS 260x he has an intel dh61ho mobo and 300watt PSU.He says his PC overheats to 95 C when playing and it caused auto shutdown.what can be the solution?upgrading the PSU to tt smart CE 530 watt?
 
Solution
Karadjgne
The simple answer is yes it can. You only get so much amperage draw on any given rail, same with voltages. If you have a crappy voltage output (say 11v) then the gpu will make up for this lack by increasing the amperage draw, which raises the temps.

Chances are, this is not the problem as most decent psu's have both under-voltage and over-current protections which will shutdown a psu to prevent damage to other components.

Several other factors can cause overheating. Severe lack of airflow is a prime suspect. As is settings too high for the size of the gpu. A 260x shouldn't be running ultra on anything other than ms hearts or minecraft
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Karadjgne

Karadjgne

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The simple answer is yes it can. You only get so much amperage draw on any given rail, same with voltages. If you have a crappy voltage output (say 11v) then the gpu will make up for this lack by increasing the amperage draw, which raises the temps.

Chances are, this is not the problem as most decent psu's have both under-voltage and over-current protections which will shutdown a psu to prevent damage to other components.

Several other factors can cause overheating. Severe lack of airflow is a prime suspect. As is settings too high for the size of the gpu. A 260x shouldn't be running ultra on anything other than ms hearts or minecraft
 
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Tahmeed Bin Enam

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So what can be the cause of overheat here?
Antec bp300
Intel Core i3 2120
8GB DDR3 RAM
ASUS R7-260x 2G D5
Cooler Master Chassis CMP 250 Cabinet
 
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Karadjgne

Karadjgne

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Lack of decent airflow drawing heat away from the cpu cooler. The heat from the cpu/gpu cooler rises and pools near the top of the cabinet, where the cpu fan pulls it back in, in a constant loop. With air already hot, the cpu cooler becomes less efficient, so temps go up.

Also suspect is a dirty cooler. Dust/debris accumulates in the cooler fins like an insulating blanket. This keeps the cpu cooler hot, and wont let it dissipate heat. So temps go up.

Games are not totally run by the gpu. A good portion is run through the cpu. Some games are very heavy on the cpu, some very light. Considering the 260x is probably an upgrade card, and you are wanting to push the limits with high/ultra settings, you are taking the cpu more than the prior card was, so temps go up.

It's probably not 1 issue but a combination of all 3.
The fix isn't hard. Turn your settings down a little, relax shadows and physX etc, clean the cpu cooler (just remove the fan to do so) and look into adding an intake fan to arch the exhaust fan, or if you have 2 fans, clean them and in bios set the fan for performance etc.
 
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Tahmeed Bin Enam

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Hmm i found out that 1 fan in casing was not running properly :3 so now i have 1 fan with casing properly running and when playing watch dogs on high the temp remains from 85-89 is 89 harmful for CPU?or do u suggest LCS or another fan??
 
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