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Under-Volting FX 6300 - Page 3

post #21 of 24
Thread Starter 
Exactly. 4Ghz at 1.24v is pretty normal.
Jay
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CPUMotherboardGraphicsRAM
FX 8350 4.4Ghz at 1.36v GA 78LMT USB3 Rev 5.0 Sapphire R9 285 OC 16GB Kingston Savage Ram 
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1TB Western Digital 500GB Seagate Barracuda Noctua NH-D15S Windows 8.1 
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Jay
(13 items)
 
  
CPUMotherboardGraphicsRAM
FX 8350 4.4Ghz at 1.36v GA 78LMT USB3 Rev 5.0 Sapphire R9 285 OC 16GB Kingston Savage Ram 
Hard DriveHard DriveCoolingOS
1TB Western Digital 500GB Seagate Barracuda Noctua NH-D15S Windows 8.1 
MonitorPowerMouseMouse Pad
Asus MG279Q Fressync OCZ ZS 650 Watt PSU Dragonwar ELE-G9 Dragonwar 
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post #22 of 24
Hello, this might interest you. Undervolted? and overclocked. But I'm only running one core per unit. The most demanding thing I use on my computer, is an old racing simulator that uses predominately one core. It uses a second core lightly and a third core very lightly.

Gigabyte 990FX UD3 R5
FX-6300
Radeon HD7850 2GB
RAM specs in picture below
Cheap 4 heat pipe heat sink with a 120mm fan blowing down on the heat sink and cpu.

These shots of HWiNFO are after one hour of prime95. I let it run another hour while I browsed. The readings were about the same after the second hour.

Vcore set at 1.31875V in BIOS, LLC = Medium. I've seen no problems with any of my ordinary activities.

At 1.3125V, the Vcore in HWiNFO drops to 1.296V when starting prime95, then runs at 1.308V. Around the 1 hour mark it started dropping to 1.296V some and then I got an error on the 3rd core.






I'm getting close to success with lower voltage using Extreme LLC. Extreme raises the Vcore in HWiNFO compared to what I've set in the BIOS. Prime95 runs longer without errors at 1.296V but I'm not "stable" yet. At 1.25625V in the BIOS and 1.296V in HWiNFO I got an error on the 3rd core after 30 minutes. I'll keep going up on the voltage until I find the setting that keeps prime95 running at least an hour. It appears using extreme LLC will allow me a lower idle voltage but at these clocks I doubt I'll get prime95 stable at less than 1.308V in HWiNFO.
post #23 of 24
Might interest who? This thread has been dead for two years. Necro.
post #24 of 24
I'm behind the times but I'm not dead yet.

New settings: 1.2625V in the BIOS and extreme LLC. I shut down prime95 after 3 hours. I had no problem running OCCT for 1 hour after that and then another hour of IBT AVX at maximum stress level. This is probably stable enough for me.



I'm assuming Temperature 2 is the socket temperature? Once I get some fans on the VRM heat sink and possibly mount a fan on the backside of the VRMs and socket, I hope I can lower the voltage more.

The lowest voltage I could use on 3 cores at 4.2 Ghz was 1.25V in the BIOS with 1.238V showing under load.
Edited by Greg64634 - 1/21/16 at 11:56am
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