**SERIOUS** My Pc is really hot, is it ok?

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GAMER_1

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I've been told that my rosewill psu is hot under load, and I'm fine with that. Its too hot for me to run.

I live in California, and its 95 degrees over here, so I thought it was normal. Till I touched it.

It gave me a very minor burn after holding my hand down for 5 seconds. It is literally hurting to touch (like concrete in the sun.)

I know I have been told its normal before, but this is outrageous, Being a non-modular power supply and it being in a Silverstone SG13 does not help either.

So I removed it and put it In my Dad's 8-fan (Yes, 8 for a gaming pc that runs a gtx 750 and g3258.) pc and it was still pretty hot.

So is it normal? this is the best description of what the temps are.

PSU: http://www.amazon.com/Rosewill-Stallion-Supply-ATX12V-RD400-2-SB/dp/B004GLBI8W?ie=UTF8&keywords=rosewill%20400w&qid=1465488711&ref_=sr_1_1&s=pc&sr=1-1

I have a g3258 (Planning for a i3 - 4330), GTX 950, and a hard drive. That really all that needs to be mentioned.

If I need a new PSU I've got a Silverstone SFX GOLD 450w Power supply coming. Should give it breathing room since its modular, SFX Form factor, and more wattage (Plus Gold rating :3 More efficient power usage.)
 
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thor220


SFX power supplies are notably poorer when it comes to performance compared to full size ATX ones. You really have to pay out the nose to get anything comparable. I'd recommend a quality ATX power supply over an extra case fan any day.
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turkey3_scratch

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I can't find any details on if it has overtemperature protection, but since it is a budget power supply I'm assuming it does not. Yeah, some power supplies handle heat a lot better than others, and some have overtemperatures protection which will shut down the unit if it gets too hot; a nice thing to have where the ambient temperatures are hot. If things get too hot inside, they can burn or affect voltage stability, which is not good. Buying a more expensive power supply that has all Japanese capacitors (for reliability under the heat) and has a high temperature rating of 50C is best.

For your sake, 95F is not that hot necessarily, as it translates into 35C. Good power supplies are rated for 50C operation and sometimes are fine going past that without issues or shutting down from overtemperature protection. If it is of much concern to you, you can purchase a higher quality power supply that'll ensure more reliability under hotter conditions.

An SFX PSU will only be smaller and probably be hotter inside IMO. I would have purchased a normal ATX form factor power supply, because that Silverstone is for smaller cases.
 
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tsnor

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Check and make sure the internal fan in the PSU is working. It should be spinning like crazy with the case hot enough to burn you. Your PC should be pulling only 200W or so, even at 70% efficiency, that's only 60W of heat that needs to be dissipated. The PSU should not be getting that hot. Wonder if the "120mm Single Fan with Smart Temperature Sensor" has packed it in.

If the PSU is a recent purchase contact Rosewill (which I think is a captive brand of Newegg) for an RMA, or use Amazon to get an equal swap.

Update: if you see an internal wire blocking the fan blade, do *not* open the PSU case to move it. There are nasty caps in there that can give you a serious shock. Instead poke it from the outside with something non-conducting or go for the RMA.

Update based on Turkey3_Scratch's correct comment:
200W at the wall at 70% dissipates 60W waste heat while putting 140W into the PC.
285W at the wall at 70% dissipates 85W waste heat while putting 200W into the PC. <-- This one is what I was thinking. So I did math wrong.
 
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turkey3_scratch

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70% efficiency would equate to 85W of heat to dissipate. 200W / 0.70 = 285
 
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tsnor

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I like your math better than my math. So 85W at 70% is waste heat.

Do you agree with conclusion that a 400W PSU run at 200W should not be reaching temps high enough to generate burns if the fan is running? Aside, if its that hot and the fan is blowing very hot air then there is something seriously wrong with the PSU and OP should stop using it.
 
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thor220

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Power supplies should not be hot to the touch, none the less burning. Higher temperatures kill power supplies very quickly.
 
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turkey3_scratch

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Don't set my words in stones but I think it depends on the power supply design how the fan reacts to temperatures. I think in some units the fan speed is directly relative to the amount of power on the outputs. But I know other power supplies employ a fan-controlling thermistor that reacts to heat and ramps up the fan speed based on the actual temps inside of the casing. I can see a situation where the former, less good fan design is used and results in possibly too high of temperatures. But again, it's a power supply, not a Hershey Kiss.

35 degree ambient temperatures are fine, that's like the testing environment that PSU reviewers test them in. Some reviewers go as high as 50C, which is the equivalent of your house being 122 degrees Farenheight inside. Good PSUs are made to run with those intake temperatures. The exhaust temperatures are always higher, there is a temperature delta. You have the ambient temperatures + the heat from the inside of the PSU. When it all comes out, it's hotter.
 
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GAMER_1

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Okay replying to everyone:

1: The temp of the PSU itself was so hot that I could only touch it for half a second.
2: The PSU was purchased on February, so I cant do anything now :3
3: The SFX power supply gives more air room and has Japanese high quality capacitors, its better then this piece of crap.
4: I probably got a malfunctioning version, since it has great reviews.
5: The fan is not spinning loudly, and I have checked it out, no cables inside, and is blowing air out.
6: It is above 100 F for sure.
 
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turkey3_scratch

turkey3_scratch

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SFX power supplies are smaller and more crammed than ATX units. How does that equate to more air room?
 
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GAMER_1

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I'm talking about airflow. First there is more room inside the CASE, not the psu. I need this for a 140mm fan on the front.
Also the fan Is smaller but I don't really care about noise, so if its louder but cooler, that's all I need/want.

P.S Yes I was talking about the room inside the case. I don't care what space is inside a psu unless if its not able to fit everything inside with some airflow. and not getting hot..
 
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thor220

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SFX power supplies are notably poorer when it comes to performance compared to full size ATX ones. You really have to pay out the nose to get anything comparable. I'd recommend a quality ATX power supply over an extra case fan any day.
 
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GAMER_1

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I can see that, but the airflow is really a nice enhancement. What about a SFX-L power supply? There smaller but have a little more room on the inside and have a bigger fan.

Also with a sfx power supply I can get a watercooled system or a 140mm fan and more just by having a new psu. (well, just modular) Also I'm a Silverstone fanboy. ill be fine if I go to another brand EXCEPT EVGA (see below) but Silverstone is my fav.


About EVGA, (Story time!) They screwed me over 3 times. 2 PSU's and 1 GPU. That warranty they talk about? Yeah they said my 3 year warranty was for a replacement. The replacement took 3 weeks till it got to my door. And not only did it not work, it was 400 watts. I NEEDED 600w FOR THE BUILD! The first one failed in 2 days, this one instantly. The gpu lasted a year. till the gpu fried for no reason, then I figured out the fan went TOO FAST?!? How? idk. The guy on the phone didn't help and stated that my things had to be replaced for....10$ CHEAPER!! Screw that.
 
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thor220

thor220

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Yeah, they usually do but they really should state that in the PSU compat list. It interests Silverstone because they make some very good SFX PSUs.
 
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tsnor

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Your other solution.

1. Contact Rosewill. This is the newegg house brand
2. Discover you are still under warantee "..The PSU was purchased on February ..."
3. Get a new PSU from Rosewill.

The PSU you have is broken. It should not get this hot. Another one will not have this problem.
 
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thor220

thor220

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I have been through Rosewill's RMA processor years ago and I can tell you it isn't pleasant. Two months to get my first replacement and I ended up getting 5 different replacement units because they kept breaking shortly after. Most of them died peacefully and one exploded with a smoke cloud. Even if he did get a replacement eventually I would not trust my system to a Rosewill unit.
 
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turkey3_scratch

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The heat inside a PSU can be precisely calculated, it's just AC - DC, and that is waste heat. DC is not taken into account because all of that energy is converted into heat at the other computer hardware, i.e. GPU. In addition, of course, to ambient temperatures, but humans only feel deltas in temperature.
 
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tsnor

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And the heat in a PSU is dissipated with fan forced air and (lesser) through direct contact with the metal case frame. For your PSU to be burning hot with the fan moving there is something badly wrong. Unsafe wrong. I've never, ever felt a burning hot PSU.

".. It gave me a very minor burn after holding my hand down for 5 seconds. It is literally hurting to touch.."

"..minimum temperature where it can suffer burn in a finite amount of time is 44°C (111°F). From 44° to 51°C (111° to 124°F), the rate of burn increases by a factor of approximately four with each Celsius degree risen or twice per Fahrenheit degree risen, from six hours down to six seconds. The burn would develop in less than a second if the exposure temperature is at least 70°C (160°F).[3].." from wikipedia.

A burn after five seconds puts the external metal on the PSU at 124F. That is really bad news.

Your case is designed for ATX form factor power supplies (I think). Use that. If you don't want to RMA just get another PSU. I use Seasonic branded PSUs, but there are many good options. Unplug your PC when not in use if you keep the same PSU, the on/off switch on the PC doesn't stop power to the PSU.

 
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turkey3_scratch

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51C exhaust temperatures - nothing wrong with that. If you read Jonnyguru, Tomsharware, etc. reviews, the exhausts from their hotbox tests have reached even 65C even.
 
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