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new build amd fx-6300 stock overheating

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August 16, 2013 11:00:54 AM

Doing first new computer build in 15 years so Im surely rusty. But I got everything put together and the computer booted up just fine. installed all the windows updates, bios updates, video card updates. Im not overclocking or making anychanges to bios. However when my son went to play any games (sims 3) the computer would just randomly shut down and restart. So I installed a bunch of monitoring and testing software (hwmonitor,coretemp,memtest86, etc) and eventually found out that the 6300 shuts down at 62 degrees, so I ran prime95 and when I click run, it increments pretty quickly and shuts down within a few seconds

So I reseated everything. Took out the cpu, cleaned it with cloth, and added on new arctic 5 thermal paste (i did the the bb method). Rebooted, retested and got the same problem.

The idle temp is at 47c, so Im not sure if the problem is the cpu, voltages, heat sink? Ive spent a couple of days googling and testing and now my sons getting antsy and I feel bad he cant play his birthday gift yet. Any help would be appreciated

Computer details....
CPU - AMD FX-6300 Vishera 3.5GHz (4.1GHz Turbo) Socket AM3+ 95W Six-Core FD6300WMHKBOX

motherboard - MSI 970A-G43 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD
HD - Seagate Barracuda 1 TB HDD SATA 6 Gb/s NCQ 64MB Cache 3.5-Inch Internal Bare Drive ST1000DM003

case - NZXT Technologies TEMPEST 210 Massive Mesh Style Midtower Case with USB 3.0

video card - SAPPHIRE 100355-1GOCL Radeon HD 7850 1GB 256-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card OC Version

memory - Crucial Ballistix Sport XT 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model BLS2K4G3D169DS3

psu - CORSAIR Builder Series CX500 500W ATX12V v2.3 80 PLUS BRONZE Certified Active PFC Power Supply

DVD drive - LG 24X DVD Burner - Bare Drive 24X DVD+R 8X DVD+RW 8X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 24X CD-RW 48X CD-ROM Black SATA Model GH24NS95 - OEM
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August 16, 2013 11:03:31 AM

do you have an intake fan at front of case and an outlet fan at the back? could be poor airflow.
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August 16, 2013 11:18:33 AM

mauller07 said:
do you have an intake fan at front of case and an outlet fan at the back? could be poor airflow.


Thanks, no I dont have a fan in the front, just the two fans one on top of the case near the cpu and one on the rear of the case near the cpu. I took the side off and set a fan blowing air on it and it still idles at 47c.
I tried to take a pic so you can see the fans around the cpu
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August 16, 2013 11:19:22 AM

Stock coolers on FX series chips are useless.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU Cooler: Xigmatek LOKI SD963 52.0 CFM CPU Cooler ($22.98 @ Amazon)
Thermal Compound: Arctic Cooling MX4 4g Thermal Paste ($7.25 @ SuperBiiz)
Total: $30.23
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-08-16 14:18 EDT-0400)
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August 16, 2013 11:20:42 AM

Back fan = exhaust

Top fan = exhaust

Front fan = intake

EQUALS Positive airflow
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August 16, 2013 11:26:51 AM

SR-71 Blackbird said:
Stock coolers on FX series chips are useless.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU Cooler: Xigmatek LOKI SD963 52.0 CFM CPU Cooler ($22.98 @ Amazon)
Thermal Compound: Arctic Cooling MX4 4g Thermal Paste ($7.25 @ SuperBiiz)
Total: $30.23
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-08-16 14:18 EDT-0400)


Thanks, I understand the stock heat sink isnt the highest quality, but it should be adequate to run the cpu at stock settings right. I know when it comes to overclocking them that it would be mandatory, but Im just running it stock and its idling very high and shoots up whenever I do anything, even youtube videos. So it seems like it should be able to handle that right?
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August 16, 2013 11:29:01 AM

SR-71 Blackbird said:
Back fan = exhaust

Top fan = exhaust

Front fan = intake

EQUALS Positive airflow


Good to know, I have a vented front, so to test it I put a large fan in the front, and on the side to increase air flow with the side taken off the case, but it didnt have any impact on the temperature.

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August 16, 2013 11:32:03 AM

change one of your fans and place it in the front instead.

removing the side of the case stops all airflow through the case and the fans essentially become useless.
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August 16, 2013 11:32:11 AM

I've installed , an FX8120 , FX6350 , AND 2 FX8350 , and all 3 ran hot with stock cooling , it's just the nature of the chip.
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August 16, 2013 1:01:12 PM

Cool , hope it works out.
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August 26, 2013 8:33:43 AM

I installed the new heat sink and it runs a little bit cooler , but still hot and shut down during the prime95 test in just a minute or two, but my sons been playing his games non stop and it hasnt shut down on him, so just leaving it I guess.
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August 26, 2013 8:37:54 AM

kingredbeard said:
I installed the new heat sink and it runs a little bit cooler , but still hot and shut down during the prime95 test in just a minute or two, but my sons been playing his games non stop and it hasnt shut down on him, so just leaving it I guess.


Need to have an intake fan in front, if I were you I would move the rear most fan and leave the top case fan. Put the rear most fan in front, pulling air into the case so you have a pass through. The fan in the top of the case will be more effective for venting heat than the rear facing fan would. Heat tends to gather at the top of the case anyway, and naturally rises.
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August 26, 2013 8:48:12 AM

kingredbeard said:
I installed the new heat sink and it runs a little bit cooler , but still hot and shut down during the prime95 test in just a minute or two, but my sons been playing his games non stop and it hasnt shut down on him, so just leaving it I guess.


You shouldn't have heat issues at stock speeds with a cooler of that size. Are you using thermal paste?


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August 26, 2013 11:46:06 AM

Cazalan said:
kingredbeard said:
I installed the new heat sink and it runs a little bit cooler , but still hot and shut down during the prime95 test in just a minute or two, but my sons been playing his games non stop and it hasnt shut down on him, so just leaving it I guess.


You shouldn't have heat issues at stock speeds with a cooler of that size. Are you using thermal paste?




Yes I used arctic silver 5, I used the dot method.
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August 26, 2013 11:48:30 AM

8350rocks said:
kingredbeard said:
I installed the new heat sink and it runs a little bit cooler , but still hot and shut down during the prime95 test in just a minute or two, but my sons been playing his games non stop and it hasnt shut down on him, so just leaving it I guess.


Need to have an intake fan in front, if I were you I would move the rear most fan and leave the top case fan. Put the rear most fan in front, pulling air into the case so you have a pass through. The fan in the top of the case will be more effective for venting heat than the rear facing fan would. Heat tends to gather at the top of the case anyway, and naturally rises.


Ok, Ill look into moving the fan from the rear to to the front and see if it has any impact.
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September 14, 2013 11:29:32 AM

kingredbeard said:
mauller07 said:
do you have an intake fan at front of case and an outlet fan at the back? could be poor airflow.


Thanks, no I dont have a fan in the front, just the two fans one on top of the case near the cpu and one on the rear of the case near the cpu. I took the side off and set a fan blowing air on it and it still idles at 47c.
I tried to take a pic so you can see the fans around the cpu


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September 14, 2013 11:32:12 AM

Has this been solved? I don't see an answer really. I'm having the same problem w/fx6300 and a gigabyte fx990 ud3 rev 4 board.
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September 14, 2013 11:32:38 AM

Has this been solved? I don't see an answer really. I'm having the same problem w/fx6300 and a gigabyte fx990 ud3 rev 4 board.
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September 29, 2013 1:38:35 AM

kingredbeard said:




Those mounting locations for additional fans at the top should be covered if there's no fan in them. The air will come in and get sucked right out. You want the hot air inside the case being vented.
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January 14, 2014 2:33:53 AM

Re-seat the cooler.

Forget the case fans unless your case temperature is much higher than ambient.

Hope this helps!
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January 14, 2014 2:36:23 AM

Re-seat the cooler.

Forget the case fans unless the temperature is way higher than ambient.

Hope this helps.
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March 6, 2014 8:26:56 AM

you need to get a better cpu cooler, because the stock one is crap. I would reccomend the cooler master hyper 212 evo (only 30 bucks). you should also get an intake fan at the front. in needed get side fans, but put the sides of the case on or else dust will get in. if it is still too hot, there might be a problem. hope this helps
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March 12, 2014 11:51:03 AM

OK as an engineer, I'm going to weigh in here for others who may have the same problem. First off, Negative pressure cases are cooler because they have more air flow. Positive pressure cases keep dust out. Negative pressure = more exhaust than intake air flow. This doesn't necessarily mean that 2 exhaust fans and 1 intake fan creates negative pressure. You HAVE to look at the cfm of each fan. If all the fans being equal, then the previous statement is correct. Secondly, try to envision where your air is flowing and picking up heat. This will help you in determining where to exhaust. That is assuming your case gives you options. With the setup you have, I would also go with one in the front and one on top. I suggest buying another fan and just exhausting the two you already have tho. That would pull the air across the case. It's fine to leave other fan shroud open, usually, but if you can cover any that is near an exhaust fan. Maybe others. It's hard to tell with just a picture of the corner of the case. As far as thermal grease goes.The concept behind thermal grease is to fill in the microscopic voids within the heat sinks of the cpu and cooler. To bridge the gap so to speak. Excessive thermal paste can cause temperature increase. Along with not enough. That is why new coolers are usually so tight to the CPU. If you are using Artic silver 5, once its pressed it should almost be like glue until its final cured stage (which takes a lot of hours). I usually take a credit card and spread a THIN EVEN layer across the whole heat sink surface on the cpu. That maximizes heat transfer. These things will help. Nothing can fix a faulty chip tho. Good luck
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May 22, 2014 7:38:15 PM

Your stock cooler should be able to run it max load 62 Celsius or under. I think since nothing is working for you, it may be the chip itself got through manufacturing without being thrown into the defects pile for being miss-manufactured and not cooling the die properly. If nothing else works for you, RMA the chip its probably bad itself at cooling. Hope this helps!
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