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Help with improving overclock.

post #1 of 8
Thread Starter 
Current system:

Motherboard: Asus M5A97 EVO R2.0
CPU: FX-8320
HDD's: VelociRaptor 300GB, WESTERN DIGITAL WD1502FAEX 1.5TB CAVIAR, 120GB Samsung 840 Evo, SEAGATE ST2000DM001 2TB
PSU: Corsair 550VX
Graph card: MSI GTX 760
CPU Cooler: Akasa 876
G.Skill 2x 4GB Dual Channel Ares DDR3 2133, 11-11-11-30
Corsair Carbide 200R with 4x 120mm fans and 1 small chipset fan blowing at 5000rpm on the back of the cpu.
LG GH22NS70 SATA DVD Writer

The mboard is 6+2 phase and has fat heatsinks on VRM.

I've overclocked with no problem to 4.2GHz, rock solid, no throttling, cpu temp 63c, socket temp 52c.

My BIOS settings are as follows:
Disabled:
turbo core
c1e
c6
Ram timings and voltage according to xmp.
Power phase control: extreme.
All fans are set with user profile to be at max at low temps.
CPU multiplier: manual.
Everything else is at auto setting.

However, anything above that (4.3GHz+) is unstable under Prime95 / OCCT.
I also noticed that when I tried different manual settings for cpu voltage (all the way up to 1.4v, the system hangs while loading windows).
What can I (safely) try next?


Thanks
post #2 of 8
APM.
Main
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FX-8320@4Ghz Asrock 970 Extreme3 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
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Crucial MX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
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Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
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EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
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FX-6300@4Ghz Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
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Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
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Main
(16 items)
 
Dedi-Coder
(15 items)
 
 
CPUMotherboardGraphicsRAM
FX-8320@4Ghz Asrock 970 Extreme3 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial MX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-6300@4Ghz Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
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post #3 of 8
I think you should upgrade your cpu cooler to a 120mm version like the Coolermaster Hyper 212 Evo. Max core temp is 61.1 degrees Celsius, On hardware monitor that is the Package temp.
post #4 of 8
Thread Starter 
I ended up buying the hyper 212 evo cause I know that one can be installed facing the rear and because it has metal screws and includes the brackets for a second fan (i'll use a cheapo 120mm ebay fan).
post #5 of 8
Thread Starter 
so with the Evo fan I have this drops in temp compared to my previous post above (under Prime95/OCCT):
CPU temp dropped 8c, cpu socket 11c, motherboard 15c, hard disks 2-5c.

All this overclocked to 4.2GHz.
I will try for higher now that temps are in check!
post #6 of 8
Thread Starter 
So, at 4.5GHZ I loaded prime, it failed after 10seconds. I went back to the BIOS, disabled APM, set LLC to Ultra High (at extreme Windows doesn't even load), run prime again.
In 2 minutes, CPU temp jumped to 64c, cpu socket to 53c, max vcore was 1.38. No errors but I stopped it as cpu temps were getting rather high..

I lowered to 4.4 GHz, same results. Even though there are no errors, I don't want temps to be that high.
All this in an airconditioned room ac set at 26c (room temp is in the mid 30s of course)..

Is there any chance to lower any voltages or maybe increase other voltages (not cpu related) so that I can keep my overclock while lowering my temps???

the cpu can handle more, in the winter I can do higher..
post #7 of 8
Thread Starter 
Sooo, spent a couple of hours experimenting..

These are my findings on my motherboard:
APM setting doesn't matter in overclocks/stability/temps at all.
Manual cpu voltage-vcore creates a lot and unnecessary heat, even when set at a low low value (1.2875v in BIOS gives 5c extra compared to auto setting).
Too much manual voltage crashes windows, doesn't boot, doesn't reset/have to unplug.
I can get to 4.5GHz and probably more with LLC Ultra High (extreme setting crashes, due to too much voltage).
I can get to 4.4Ghz with reasonable temps (60c under prime) and stable with LLC High
Phase control high settings decrease stability (prob due to too much voltage).

conclusions for this motherboard only:
disable: cnc, c1e, c6.
Set manual multiplier to whatever u want.
Increase LLC when multiplier is set too high and u don't have stability (heat will also increase).


I don't know if anyone has anything else to add..
post #8 of 8
You're probably toward the end of how much power you can squeeze out of that motherboard. I had a M5A97 with a PII 965 and the motherboard VRMs started making coil whine at 4.1ghz / 1.5-1.55v.
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AMD FX-8120 Bulldozer 8-core CPU MSI 990FX GD80 v2 ASUS R9-280 Direct CU II ASUS R9-280 Direct CU II 
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Kingston 16GB (4 x 4 GB) DDR3-1333 C9 1.5v Phanteks PH-TC14PE Windows 10 Antec True-power Quattro 1200W 
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Cooler Master CM Storm Stryker 
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1045T @4.05Ghz 1.45v [300 FSB] 3000 NB 1.26v MSI 990FXA-GD80 v2 EVGA GTX480 @820mhz Crucial Ballistix sport VLP 2x4GB @ 1333 cas 7 
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Thermaltake Water 2.0 Performer Logitech G710+ OCZ ZT650w CM Storm Stryker 
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CPUMotherboardGraphicsRAM
Phenom II x4 965 @4.1 [2800 cpu-nb] Asus M5A97 R1 AMD 6950 Kingston HyperX 1600mhz 8-9-8-20-21 
Hard DriveCoolingOSMonitor
Too many Thermaltake Water 2.0 Performer Win7 Extreme Edition R1 64bit Acer P224W 22" 1050p 
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13 Evolved
(9 items)
 
13
(9 items)
 
Classic
(11 items)
 
CPUMotherboardGraphicsGraphics
AMD FX-8120 Bulldozer 8-core CPU MSI 990FX GD80 v2 ASUS R9-280 Direct CU II ASUS R9-280 Direct CU II 
RAMCoolingOSPower
Kingston 16GB (4 x 4 GB) DDR3-1333 C9 1.5v Phanteks PH-TC14PE Windows 10 Antec True-power Quattro 1200W 
Case
Cooler Master CM Storm Stryker 
CPUMotherboardGraphicsRAM
1045T @4.05Ghz 1.45v [300 FSB] 3000 NB 1.26v MSI 990FXA-GD80 v2 EVGA GTX480 @820mhz Crucial Ballistix sport VLP 2x4GB @ 1333 cas 7 
CoolingKeyboardPowerCase
Thermaltake Water 2.0 Performer Logitech G710+ OCZ ZT650w CM Storm Stryker 
Mouse
CM Storm Xornet 
CPUMotherboardGraphicsRAM
Phenom II x4 965 @4.1 [2800 cpu-nb] Asus M5A97 R1 AMD 6950 Kingston HyperX 1600mhz 8-9-8-20-21 
Hard DriveCoolingOSMonitor
Too many Thermaltake Water 2.0 Performer Win7 Extreme Edition R1 64bit Acer P224W 22" 1050p 
PowerCaseMouse
Antec BP550 plus Corsair 200R CM Storm Xornet 
  hide details  
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