Topic Title: How to stabilize FX-9590
Topic Summary: it keeps jumping up and down and freezing
Created On: 06/22/2014 10:53 PM
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 06/22/2014 10:53 PM
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Joined: 06/22/2014

So I've had the 9590 in my computer for a few weeks now, and now that I have some actual games on my computer, it can't play any of them except for EVE Online.


My setup is:

Asus Crosshair V Formula-Z motherboard
NZXT X60 Kraken CPU water cooler (general temps are 35-44 from idle to high load)
NZXT Phantom 820 Ultra (high air flow)
G.SKill 16GB 1866 RAM (was previously using 4GB 1333Mhz ram but had the same problem)

Essentially I can load up games most of the time but only after a few moments, my entire computer just locks up and you can't use Ctrl Alt Delete, or anything other than standing up and manually resetting the entire computer. I have done MSI Afterburner and tested my GPU and that is working properly, I've tested my CPU and after around 3 minutes the entire computer locked up. I have used memtest 86+ and tested my memory and found no errors. I've used Prime95 and ran it for 14 hours on my CPU when I got it and it had no problems (that I can think of) but then 90% of the time when I test my CPU on high load it locks everything up.

The only possible thing I can think of is that the FX CPU wasn't designed for Turbo Boost, since the constant voltage and frequency transitions are what is frying it. Is there a way to just turn it off in the BIOS to make it stabilized or perhaps OC it to 5GHZ without turbo boost so it stays consistently at that speed? I'm not huge on overclocking but right now this CPU to me is a little tiny brick that can be chucked out the window.

 06/25/2014 03:35 AM
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Assuming you are using the latest BIOS version for your mobo, it's possible that your mobo VRM/BIOS may not be able to properly deal with the FX-9xxx series CPUs.

You can certainly try running the system in manual mode without overclocking it. I'd suggest starting at 4.7 GHz. as that is the base frequency for the FX-9590. Switching to 5.0 GHz. in Turbo mode is usually under moderate loads not under heavy CPU loads. You can even start as low as 4.0 GHz and work up if all is fine in manual mode.

I'd suggest manually setting all BIOS settings including RAM and see if this helps.

 06/25/2014 12:53 PM
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Are you using the latest BIOS, and what is your power supply?

AMD FX-8350 w/ Corsair H105, ASUS Sabertooth 990FX Gen3/R2, 8GiB G.SKILL DDR3-2133, XFX HD 7970 GHz Edition, 1TB Samsung 850 Evo, 256GB OCZ Vector, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, Corsair C70, HP ZR2440w, Win 7 Ult Ed x64
 07/09/2014 02:41 PM
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I think the same...


1) good PSU with strong rail for CPU power 

2) cool VRM area with some added fan directly (120mm)


AMD FX-8350, FX-8320, FX-8150, FX-8120, FX-8120 95W, FX-6300, FX-4300, PII x4 1100T BE, PII x6 1090T BE, PII x4 980 BE, PII x4 975 BE, PII x4 970 BE, PII x4 965BE C3, PII x4 965 BE C2, A10-5800K, A10-5600K, A8-3870K, A8-3850, P x4 9850, P x3 8650, etc

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