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Overclocking AMD Phenom ii 840 x4

post #1 of 7
Thread Starter 
I'm new to overclocking processors to begin with. I have this processor up to 3.5 instead of the stock 3.2 but all iv done is raise the ht ref clock. I know I should be able to do more just not sure what and I'm also not sure if the options are available on my motherboard. I have an Asus mb. I've heard of people getting the processor 4 ghz or close. Would like suggestions thanks smile.gif.
post #2 of 7
Hi, you will have to provide more information - what mobo, what voltages and temperatures etc. Maybe fill out your rig specs below so everything knows what hardware you are talking about.
 
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13" beast
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HTPC
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CPUMotherboardGraphicsRAM
Lapped X4 940BE @ 3.5Ghz / NB @ 2.4GHz Biostar TA790GX 128M 1GB HD6950 @ 965/1360 (1.26V) Kingston Hyper-X 2GB x 4, 1066 MHz 5-5-5-15-22 ... 
Hard DriveOptical DriveCoolingOS
Crucial M4 64GB SSD, WD 640GB x 2 none Scythe Katana 3 Win7 64bit 
MonitorKeyboardPowerCase
Dell 24", Samsung 17" x 2 Logitech Illuminated Antec Earthwatts 750W Antec 300 
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Intel Core i5 2410M @ 2.3 Ghz stock Intel HD Graphics 3000 4GB 500 GB 
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Windows 7 WXGA (1366x768) 
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Athlon II X2 245 GA-MA785GM-UD2H Onboard HD4200 Kingston 2GB 
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post #3 of 7
the phenom 2 x4 840 is a propus core....its basically a higher clocked Athlon 2 x4 quad with no l3 cache and a locked multiplier. however its a very good quad core if you can get good at overclocking via the fsb. it would be helpful to know what model of asus motherboard you have and what kind of cooling you have. the standard rules of phenom 2 overclocking do apply minus the locked multiplier. once you know how far you can push the FSB of your mainboard you can roughly figure out how far you can push the chip. remember to keep it below 65 degrees c on the cores. the max safe voltage is no more then 1.55 and that might be pushing it for 24/7/365. for comfort you might consider 1.54 vcore volts your max limit. welcome to a very addictive hobby
     
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core 2 quad q6600 asus p5g41t-m lx plus patriot viper samsung 500gb sata 3.0gbps 
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my sony bravia 40" 1080p tv inland coolermaster extreme power plus 700 watt HAF 912 
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post #4 of 7
Thread Starter 
Sorry about that!

MB- Asus M4A785-M
Gigabyte ATI 6870 video card
6gb of ram ddr2
Basic cooling but cpu stays cool

I'm not sure what fsb is and where the options for it are for my motherboard. Thanks!
post #5 of 7
Great little processor! I've had a lot of fun with mine - http://hwbot.org/submission/2319460_cssorkinmanocn_cpu_frequency_phenom_ii_x4_840_4613.9_mhz

Tends to run cool and clocks up very well - good advice from DT good luck with yours!
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post #6 of 7
Thread Starter 
That is crazy! Is fsb the same as the ht ref clock? That's what iv been able to change but I don't know what to decrease so I can increase it further. I can't go higher than 3.5 at the moment unfortunately.
post #7 of 7
the FSB=front side bus. the base of that should be 200 on the button. there should be something inside the mainboard bios stating front side bus, which is where you wish to start!
     
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core 2 quad q6600 asus p5g41t-m lx plus patriot viper samsung 500gb sata 3.0gbps 
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western digital caviar blue 500gb sata 3.0gbps crucial m4 hp dvd-rw ide lite-on dvd-rw 
CoolingCoolingCoolingOS
coolermaster hyper-n520 coolermaster 200mm fan bitfenix spectre 200mm windows 7 home premium 64bit 
MonitorKeyboardPowerCase
my sony bravia 40" 1080p tv inland coolermaster extreme power plus 700 watt HAF 912 
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inland realtek onboard 
CPUMotherboardGraphicsRAM
Core 2 Duo g72gx-rbbx05 gtx 260m Nanya PC2-6400 
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G Skill 64 GB SSD Western Digital Scorpio Black HL-DVD-RW Windows 7 Home Premium 
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CPUMotherboardGraphicsRAM
FX 8350 Gigabyte 990-FXA-UD3 Gigabyte Radeon R9 290x G Skill Sniper DDR3-1866 
Hard DriveHard DriveHard DriveOptical Drive
samsung 850 evo  seagate barracuda 2 terabyte seagate barracuda  Asus DVD-RW 
Optical DriveCoolingCoolingCooling
LG GGC-H20L Coolermaster 120mm corsair h100i Coolermaster 200mm 
CoolingOSMonitorMonitor
aerocool f6xt Win 7 Pro 64 bit asus vw246h aoc 2236vw 
KeyboardPowerCaseMouse
Microsoft Reclusa Cooler Master Silent Pro M850 HAF 922 corsair vengeance m65 
Mouse PadAudioAudio
razer vespula Altec Lansing Octane 7 creative recon fatal1ty professional 
CPUMotherboardRAMHard Drive
core 2 quad q6600 asus p5g41t-m lx plus patriot viper samsung 500gb sata 3.0gbps 
Hard DriveHard DriveOptical DriveOptical Drive
western digital caviar blue 500gb sata 3.0gbps crucial m4 hp dvd-rw ide lite-on dvd-rw 
CoolingCoolingCoolingOS
coolermaster hyper-n520 coolermaster 200mm fan bitfenix spectre 200mm windows 7 home premium 64bit 
MonitorKeyboardPowerCase
my sony bravia 40" 1080p tv inland coolermaster extreme power plus 700 watt HAF 912 
MouseAudio
inland realtek onboard 
CPUMotherboardGraphicsRAM
Core 2 Duo g72gx-rbbx05 gtx 260m Nanya PC2-6400 
Hard DriveHard DriveOptical DriveOS
G Skill 64 GB SSD Western Digital Scorpio Black HL-DVD-RW Windows 7 Home Premium 
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