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CPU Errors with FX-6350

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  • CPUs
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August 3, 2014 12:25:06 PM

I just built a computer with the following build

PSU: EVGA 600 B
Motherboard: GIGABYTE GA-78LMT-USB3
CPU: AMD FX-6350
Memory: Patriot Viper Xtreme 4GB Desktop Memory Module
HDD 1: Kingston SSDNow V300 240GB
HDD 2: WD Blue 1TB WD10EZEX
GPU: Sapphire Radeon R9 270X Vapor-X
OS: Windows 8 / Windows 8.1

When I began testing it I noticed that every once in a while a browser tab in chrome would crash. Same thing with Firefox. Then I installed a game, and every once in a while the game wouldn't open up, or it would crash at different stages (settings menu outside of game, start menu inside game). Interestingly, these problems sometimes disappeared on resets I also have issues with the anti virus software (it would crash and the license went missing once). I also had problems installing windows updates which would fail midway through installation occasionally. The graphics driver also crashed once every 5 minutes.

These problems were compounded by the fact that when I plugged audio devices in (one USB and one through front panel audio) the computer crashed and rebooted itself.

Thinking it may have been a motherboard bios problem I reset the bios, then updated it. I also uninstalled and reinstalled the anti virus, the browsers and the graphics driver. I also updated Windows 8 fully, then to Windows 8.1.

All throughout this time the problems persisted.

So then I reinstalled Windows 8, formatting the primary partition.

I've conducted stress testing on the CPU (Prime95, OCCT), the memory (Windows Memtest), the primary disk (Windows checkdisk).

The only anomaly I encountered was that in OCCT I got errors over and over again the CPU: OCCT mode. Sometimes these errors came in within 8 seconds of the testing phase beginning. So I went into the BIOS and disabled core 2 & 3 and tried to start the OS and sure enough the system wouldn't start. Seeing this I took out the CPU and looked for bent pins, not seeing any I put the CPU back in.

Yet the problems persist.

Anyone have any idea if this is a defective CPU or if it's caused by PSU issue or a MoBo issue and if there's more testing I could do to identify the problem?

Ideas for resolving the issues would be appreciated too.

Your help and time is greatly appreciated.

Thanks ahead of time.

More about : cpu errors 6350

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August 3, 2014 12:59:57 PM

You might need more voltages to have your CPU stable. Motherboard might not be able to support the clock speed at stock voltages. The fx 6350 is basically a 6300 overclocked.
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a b à CPUs
August 3, 2014 1:56:35 PM

Calnin said:
You might need more voltages to have your CPU stable. Motherboard might not be able to support the clock speed at stock voltages. The fx 6350 is basically a 6300 overclocked.



FX processors and Micro ATX boards don't mix well. The cpu's need too much voltage. They are typically only 4+1 phase power. And the mosfets aren't heatsinked. I have that board. A good match for a dual core Athlon II. That is about it. Six and eight core processors need full ATX boards with heatsinked mosfets and 8+2 phase power.
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August 3, 2014 2:11:57 PM

I would disagree that you absolutely need the 8+2 phases to support a fx processor. The gigabyte board that OP has does have decent coverage around the motherboard. I am using a 4+1 phase motherboard with a fx 8350, granted I'm only running a nudge of an overclock (4.1ghz). 8+2 phases would be better fit for someone wanting to run a slightly heavier overclock.
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August 3, 2014 2:43:25 PM

Calnin said:
I would disagree that you absolutely need the 8+2 phases to support a fx processor. The gigabyte board that OP has does have decent coverage around the motherboard. I am using a 4+1 phase motherboard with a fx 8350, granted I'm only running a nudge of an overclock (4.1ghz). 8+2 phases would be better fit for someone wanting to run a slightly heavier overclock.


It isn't a bad board and it does have heatsinked mosfets. I for some reason thought he had an ASUS Micro ATX board. I have seen too many horror story's with cpu's throttling using 4+1 boards to ever recommend using a FX cpu on one.
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August 3, 2014 6:21:23 PM

Calnin said:
I would disagree that you absolutely need the 8+2 phases to support a fx processor. The gigabyte board that OP has does have decent coverage around the motherboard. I am using a 4+1 phase motherboard with a fx 8350, granted I'm only running a nudge of an overclock (4.1ghz). 8+2 phases would be better fit for someone wanting to run a slightly heavier overclock.


The sad thing is I'm not even running an overclock right now.
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August 3, 2014 6:57:22 PM

In all technicality, the 6350 is an overclocked fx 6300. I would just suggest maybe raising to voltage up a tad bit, monitor the temps and see if it's stable.
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August 4, 2014 7:13:35 AM

Calnin said:
In all technicality, the 6350 is an overclocked fx 6300. I would just suggest maybe raising to voltage up a tad bit, monitor the temps and see if it's stable.


Thanks. I'll try that. Is there a way to account for why only OCCT throws up errors and not Prime 95 or Linpack?
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a b à CPUs
August 4, 2014 12:29:49 PM

I'd assume probably just stability/temperatures. Whenever I use it, it throws up errors when something's stable or throttles or something.
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