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FX 8350 oc instability --4 ram modules--

post #1 of 4
Thread Starter 
Hi guys

I am trying to oc my fx8350 and i am hitting a brick wall.

My setup is as follows:
M5A99FX PRO R2.0
16GB (4X4GB) 1600mhz Kingston HyperX genesis 9-9-9-27-2T @1.65v
Nexus 1000watt psu
corsair h80i

CPU Auto voltage is 1.38v and turbo auto voltage 1.42v
CPU/NB Auto voltage is 1.2v

I have manually set the ram timings, the digi+ settings according to the guide,
http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard
cpu/nb freq(2200),ht link freq(2600), cpu and cpu/nb voltages and disabled c-states.

I have tried prime95 small fft tests up to 4.7ghz @1.5v with no problem.

My target frequency for the beginning is 4.4ghz@1.4375v with the ram @1600mhz.

HWmonitor reads 1.428min, 1.456max. Most of the time HWMon reads 1.44v
Cpu/nb voltages below 1.3v and above 1.35v are totally unstable
with random freezes even when browsing.
Moving towards cpu/nb voltage of 1.3375v increased stability,
but despite my high hopes of discovering an island of stability @1.3375v
(completed several hours of occt, IBT maximum setting 10 runs)
after 7 hours of prime95 custom test(12gb ram used) 1 core failed.
Any increment above or below, of cpu/nbv and cpuv, will also fail.
Should i give up on trying to keep my ram @1600mhz?
Any suggestions from someone with 4 ram modules are higly appreciated.

I have also tried the alternative method with lowering the cpu/nb speed from 2200mhz to 1600mhz.
So far i have tried 4.5ghz@1.45v, 1600mhz ram, with random cpu/nb increment selection between 0.9v and 1.1v
and all failed. 1.1v was more stable than 0.9v

p.s. temps are always well within specs i.e. @1.45v 58c socket, 47c cores

thanks in advance for your help.
Pilerider Mk8
(18 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 @4.4ghz M5A99FX PRO R2.0 GTX 670 @1162Mhz max 4x4GB Kingston HyperX Genesis 1600Mhz 9-9-9-24-... 
Hard DriveHard DriveOptical DriveCooling
2xSamsung 830 128GB Raid0 Western Digital Caviar green 1TB Sata3 Lg optical dvd rw +r Corsair H80i 
OSMonitorKeyboardPower
Winf 7 pro Samsung S27B370H 60hz 1080p Microsoft X4 Nexus 1000w 
CaseMouseMouse PadAudio
Sharkoon  Razar DeathAdder 3.5g Roccat Taito Creative Labs Recon 3D 
OtherOther
M-AUDIO AV-40 Aerocool Touch 1000 
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Pilerider Mk8
(18 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 @4.4ghz M5A99FX PRO R2.0 GTX 670 @1162Mhz max 4x4GB Kingston HyperX Genesis 1600Mhz 9-9-9-24-... 
Hard DriveHard DriveOptical DriveCooling
2xSamsung 830 128GB Raid0 Western Digital Caviar green 1TB Sata3 Lg optical dvd rw +r Corsair H80i 
OSMonitorKeyboardPower
Winf 7 pro Samsung S27B370H 60hz 1080p Microsoft X4 Nexus 1000w 
CaseMouseMouse PadAudio
Sharkoon  Razar DeathAdder 3.5g Roccat Taito Creative Labs Recon 3D 
OtherOther
M-AUDIO AV-40 Aerocool Touch 1000 
  hide details  
Reply
post #2 of 4
If you are a gamer,

lowering your ram to 1333mhz won't impact alot on your performance in games.
altho by lowering your ram you can push your CPU a bit further.

^ (thats mostly the case)


CPU OC over RAM <-- its more benificial.


altho 4,7ghz isn't bad mate, are you trying to hit 5ghz?
ZettaiKorosu
(16 items)
 
  
CPUMotherboardGraphicsRAM
I7 4670K @ 4,2Ghz ASUS Maximus VII Hero Asus GTX 760 Striker 4GB x2 SLI 8GB Avexir Blitz Series [RED LED] 
Hard DriveHard DriveCoolingOS
SSHD 1TB Samsung 840 pro  NZXT X60 Win7 Ultimate x64 
MonitorKeyboardPowerCase
Asus PB298Q 21:9 Corsair K50 Corsair RM850 NZXT H440 
MouseAudio
Cyborg RAT 9 Soundblaster ZxR 
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ZettaiKorosu
(16 items)
 
  
CPUMotherboardGraphicsRAM
I7 4670K @ 4,2Ghz ASUS Maximus VII Hero Asus GTX 760 Striker 4GB x2 SLI 8GB Avexir Blitz Series [RED LED] 
Hard DriveHard DriveCoolingOS
SSHD 1TB Samsung 840 pro  NZXT X60 Win7 Ultimate x64 
MonitorKeyboardPowerCase
Asus PB298Q 21:9 Corsair K50 Corsair RM850 NZXT H440 
MouseAudio
Cyborg RAT 9 Soundblaster ZxR 
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post #3 of 4
It sounds nutty, but drop your htt link speed to 2200. It worked on one of my Vishera's.

Warning: Spoiler! (Click to show)

Edited by cssorkinman - 5/17/13 at 7:06pm
Ryzen Shine!
(14 items)
 
  
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Ryzen 1800X @ 4125mhz 1.432 Volts MSI X370 Titanium   Fury  G.SKILL TridentZ Series 32GB (4 x 8GB) 288-Pin... 
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Ryzen Shine!
(14 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen 1800X @ 4125mhz 1.432 Volts MSI X370 Titanium   Fury  G.SKILL TridentZ Series 32GB (4 x 8GB) 288-Pin... 
Hard DriveOptical DriveCoolingOS
Samsung 850 pro Hp 1260 I liquid unobtanium Koolance 480mm radiator, 39... Win 7 HP/Winspy 10 64bit 
MonitorKeyboardPowerCase
24" hp @ 1900x1200 Logitech G19 PC power and cooling 910 watt silencer Thermaltake P5 
MouseMouse Pad
Logitech MX 518 fUnc industries 
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post #4 of 4
From reading other threads and responses it seems like prime hates the FX line. If you're stable with OCCT and ITB I'd think you'd be fine unless you see other issues coming up.
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