Random Restarts, no BSOD, new build

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anondaniel

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Oct 29, 2014
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So I built my rig not too long ago, everything is still under warranty, but since building it I haven't been able to get it working properly. Random restarts, no BSOD (even after I unchecked the automatic restart in System And Recovery options).

I've run memtest86 and no issues popped up. I've checked the heat indexes to rule out overheating
http://imgur.com/tUSqRaA
http://imgur.com/45OusBS

I stressed the system by running Prime95 that pushes all the cores to 100% and the CPU heat doesn't go above 65C. I've even been able to play games like Crysis 2 and Natural Selection 2 for long period at a time with no issues sometimes. The restarts could occur when playing a game or simply sitting idle.

I left the BIOS running overnight to see if it would restart to try and rule out the PSU being a problem, but since simply running the BIOS doesn't draw much power, that might now have proven anything.

I've reinstalled the OS, updated the drivers, and unfortunately nothing has fixed the problem so far.

Something to note, when I installed the second OS (went from windows 7 ultimate to windows 7 home professional) I didn't delete the old one, just partitioned a different part of the hard drive. This shouldn't be the source of the problem but maybe someone else knows better. Also, once I installed the second OS my wireless keyboard won't work on boot up (hence can't get to BIOS on wireless), it worked for the first OS install.


ASRock 980DE3/U3S3 AM3+ AMD RX881/760G SATA 6Gb/s USB 3.0 ATX AMD Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157366

Antec HCG M HCG-750M 750W ATX12V SLI CrossFire 80 PLUS BRONZE Certified Modular Active PFC Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371066

Seagate Barracuda 7200.14 ST3000DM001 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822148844

G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL9D-8GBSR
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231460

HIS iPower IceQ X² OC H290QMC4GD Radeon R9 290 4GB 512-Bit GDDR5 PCI Express 3.0 Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814161459

AMD FX-8350 Black Edition Vishera 8-Core 4.0GHz (4.2GHz Turbo) Socket AM3+ 125W Desktop Processor FD8350FRHKBOX
http://www.newegg.com/Product/Product.aspx?Item=N82E16819113284&cm_re=fx_8350-_-19-113-284-_-Product

Antec Twelve Hundred V3 Black Steel ATX Full Tower (comes with 6 fans)
http://www.newegg.com/Product/Product.aspx?Item=N82E16811129100

3 pin fan X6 Splitter
http://www.amazon.com/Phobya-3-Pin-Cable-Splitter-Connection/dp/B00414ROMS/ref=cm_cr_pr_product_top
My case came with 6 fans, motherboard only supports 2 and I covered one of those pins when I installed the graphics card. I got a splitter so all my fans could run off 3 pin fan. The restarts were happening when I had only one fan running off these three pins so I don't don't think the issue is the 6 fans pulling too much power from this one source on the MB.


I'm stumped about what the problem could be and would appreciate any help.
 
Solution
capt_taco



Don't worry, supported memory lists are always woefully incomplete; they just represent the few sets that the manufacturer has actually tested themselves. But with few exceptions, any DDR3 should work in any DDR3 motherboard.

I noticed that in your motherboard's specs, it says "DDR3 1866(OC)/1600(OC)" ...
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capt_taco

capt_taco

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Heat wouldn't cause a random restart; it would cause a shutdown and the inability to restart for a few moments until the temperature was safe again.

Two things that could cause random restarts like you described are power issues or unstable RAM. My guess with a new build would be that unstable RAM is the more likely than the power supply being faulty out of the box, especially with high-speed RAM. Go into the BIOS and set the timings and voltage yourself rather than letting the motherboard do it on auto; see if that helps. If not, try setting it manually to 1600MHz and see if you can get it stable there, then tweak it gradually to step it up to the correct speed.

Does it only restart suddenly, or does it hang sometimes first? That could also be a giveaway that RAM is to blame.
 
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anondaniel

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Oct 29, 2014
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Yup, all the critical errors are event ID 41, but I thing those come up if the system itself doesn't shut down properly. Luckily the PSU has a 5 year warranty

 
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anondaniel

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Oct 29, 2014
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It actually does hang up for a few seconds before it restarts. When this problem started I looked up specifically what memory sticks were supported by the motherboard. While the motherboard does support 1866, which is the memory type I have, it does not SPECIFICALLY support the memory I have.

I'll have to get a wired keyboard before I can get to the BIOS, but once I do, how do I know what to set the timings and voltage to??
 
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capt_taco

capt_taco

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Aug 5, 2009
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Don't worry, supported memory lists are always woefully incomplete; they just represent the few sets that the manufacturer has actually tested themselves. But with few exceptions, any DDR3 should work in any DDR3 motherboard.

I noticed that in your motherboard's specs, it says "DDR3 1866(OC)/1600(OC)" ... that means that yes, it will support 1600MHz or 1866MHz speeds, but the "OC" stands for "overclock," meaning that in order to reach those speeds, you have to treat it like overclocking - in other words, do the settings yourself. So I am guessing that's your problem; the motherboard will support that speed of RAM but doesn't know what to do with it unless you tell it.

Just set the timings and voltage to the same as what's listed in your RAM's specs - 9-10-9-28 timings and 1.5V. Again, if that doesn't get it to work at the stock 1866 MHz, you have two options, step down to 1600 and see if that works first, then make adjustments, or try it again at 1866 and up the voltage slightly (0.02-0.04V, no more). The second way is kind of the "whack it with a hammer" approach, but sometimes gets it to be stable nonetheless.



 
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