My graphics card is heating up to 100 degrees Celsius. Can anyone help?

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I_Hoard_Penguins

Reputable
Mar 27, 2014
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4,510
I have just bought a new gaming computer from a friends brother and when I play games on it it runs great for about 20 minutes and then the fps goes from around 70 down to 15 and the graphics card heats up to 100 degrees and I have to restart my computer to stop the terrible frame rate. I think it is because of the power supply isn't strong enough but im not he greatest with computers, I have a 500 watt power supply in the computer at the moment and the guy who I bought it from said it was a 600 and I am thinking about upgrading to a 750 watt power supply because my brothers friend said that this rig needs at least a 750 watt power supply. I will post my computer specs below.

Windows Edition
Windows 7 Professional 64-bit

Processor:
Intel Core i7-2600K @ 3.40GHz - 3.70GHz (Unlocked)
( 8 Cores )

Memory:
16GB 1333 MHz DDR3 (4x 4GB)

Hard Drive:
2TB SATA Hard Drive

Motherboard Supports RAID

Disk Drive:
Pioneer Blue-Ray Burner SATA

Video Card:
AMD ATI Radeon HD 7950 3GB Video Card
(1x DVI, 2x HDMI, 2x Mini HDMI Ports)

TV Tuner:
ViXS PureTV -U 48B0 (NTSC/ATSC Combo)

Ethernet:
Realtek PCIe GBE Family Controller

Ports:
USB: 6x Back USB Ports / 2x Front USB Ports, 1x Gigabit Ethernet Port, HDMI & DVI (Also On bother board)

Motherboard PCI Slots:
2x PCI-E Slot (One Already Used ATI 3GB Video Card)
1x Mini PCI-E Slot
6x SATA Ports

 
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pyr0_m4n

pyr0_m4n

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Feb 4, 2013
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A 500W power supply is plenty to run a 7950. I've got a 7970 running on a 500W. Possibly, the PSU could be failing. The fact that you can play a game for about 20 minutes before it happens though makes me think otherwise. If the PSU was failing, it would probably happen as soon as it ramps up. How exactly is the temperature ramping up? Is it a steady incline until it hits 100? Or is it going along just fine then suddenly jumps?
 
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I_Hoard_Penguins

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Mar 27, 2014
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4,510
I cleaned out the graphics card and it still ran very hot so I am getting someone to take off the thermal paste and put on some new thermal paste and he is going to run a diagnostic of my computer also so I will get back to you when that is done
 
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I_Hoard_Penguins

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Mar 27, 2014
7
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4,510
I got my friend to replace the thermal paste but before he did that he stress tested it and it heated up to 105 degrees Celsius after he replaced the thermal paste it heated up to 100 degrees Celsius my friend said that the card is functioning fine other than it over heating so he told me to buy a after market or buy a new graphics card so I am going to buy a new cooler and see if that helps.
 
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I_Hoard_Penguins

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Mar 27, 2014
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and it is not over clocked it runs at stock speeds and I don't know the core speed, memory speed, and voltage while gaming because I don't have the card right now because my friend is trying to fix it.
 
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