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Overclocking a Laptop CPU

post #1 of 8
Thread Starter 
I have an HP Pavillion DV7-4177nr, and I was wondering if I can overclock my CPU, and what's the safest GHz to overclock to. Here's my specs
AMD Phenom(ym) II N640 Dual-Core Processor, 2900 Mhz
6 GB of RAM
It's an HP Laptop, so can I safely overclock my CPU? And how?
post #2 of 8
You can overclock your cpu on any computer by booting to the bios and changing frequencies or multipliers (they are related different for every cpu and every mobo, basically). I wouldn't recommend overclocking (at least not extensively) a laptop because of heat related issues, but if it came at 2.9 Ghz you can probably overclock it to 3.2 or 3.4 without too much of an issue and without changing voltage too much. Again, overclocking laptops is not normally something I would recommend. Go to your Bios, find out what values cause you to have 2.9 Ghz, alter them to change your frequency to whatever you want, keeping in mind that if your AMD Phenom II isn't "unlocked" (black edition) then changing your frequencies will also change the speed your ram runs at. If you really want to understand I would recommend reading stickies in the AMD CPU overclocking forum that clearly explain all the relations between the different variables you can set in your motherboard BIOS.
post #3 of 8
Thread Starter 
OK thanks. 3.4 GHz will definitely boost speed. I was wondering about cooling, and if any extra external fans were needed, as I already use 1 extra, and I have 2 more ready. If overclocking, is it necessary to use those? And also, could you make a step by step guide to overclocking it in the bios(and, do you have to do it in the BIOS, or is possible to do it within the OS?) And how big is a change of it totally screwing up the CPU, having the laptop never work again?
post #4 of 8
HP laptops have an option to change frequencies? When did this happen?

I have experience overclocking laptops CPUs and GPUs and they both ended with smoke and then tears...in that order.
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space heater
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Old bladecentre
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CPUMotherboardGraphicsRAM
Intel 2500k 4.7GHz  Asus P8P67 Pro(B3) 2 x Club3D 280X 3GB 16GB g.skill 1600MHz C9 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Pro 256GB Samsung F3 1TB 2 x WD Blue 1TB RAID0 2 x 3TB Seagate Barracuda 
Optical DriveCoolingOSMonitor
LiteOn IHAS124 Noctua NH-D15 8.1 Enterprise Acer GD245HQ (120hz) 
MonitorMonitorMonitorMonitor
LG W2420P LG IPS231P HP ZR24w LG 32LH3000 (w/IPS) 
KeyboardPowerCaseMouse
Razer Blackwidow Antec TruePower New 750W Corsair 750D Modified original G5 
AudioAudioAudioAudio
Asus Xonar PCIe Sennheiser HD595 Tannoy Mercury 5 NAD C165BEE 
AudioAudio
Bowers & Wilkins 683 Cambridge Audio DACMagic+ 
CPUMotherboardGraphicsGraphics
E6750 P5NESLI+ Club3D 280X XFX 5870 
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post #5 of 8
Quote:
Originally Posted by fluxlite View Post

HP laptops have an option to change frequencies? When did this happen?
I have experience overclocking laptops CPUs and GPUs and they both ended with smoke and than tears...not necessarily in that order.

this^ is there an option for that in your bios? i highly doubt it..HP/Dell/ all OEMs generally lock all the good stuff out.
Ok since there's probably NOT..download Setfsb and find out what PLL chip you have.
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Newegg box flap onboard 
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2500K Gimped @ stock Gigabyte H61-DS2 XFX 5870 800/1250 The Samsung RAM (Awesomeness) 
Hard DriveCoolingOSMonitor
Crucial m4 64 Sunbeamtech Core-Contact 92 attached via zip-ties. Varies Samsung 2ms 
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post #6 of 8
Thread Starter 
I just need to know the safest way to overclock it. Is it the Setfsb you mentioned? If so, how do I do it from there?
post #7 of 8
I was wondering about cooling, and if any extra external fans were needed, as I already use 1 extra, and I have 2 more ready. g.gif
post #8 of 8
Overclocking on a laptop is a very bad idea. Laptops are not designed with the best cooling methods and overclocking the processor adds extra heat to the system that it is not designed to dispose of. I say do not overclock it.
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Blue Butterfly
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CPUMotherboardGraphicsGraphics
AMD Phenom II X6 1090T >STOCK< Asus CROSSHAIR V FORMULA-Z Sapphire HD7950 Vapor-X Unknown Branded Reference HD 7970 
RAMHard DriveHard DriveHard Drive
GSkill 4x4GB 1600Mhz RIpjaws X ADATA Premier Pro SP900 2.5" 64GB SATA III MLC ... Seagate Barracuda 7200.10 ST3250310AS 250GB 720... SAMSUNG SpinPoint T Series HD320KJ 320GB 7200 R... 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 7200.10 ST3500630AS 500GB 720... Lightscribe DVD/RW Cooler Master Hyper 212+ in Push/Pull Windows 7 Ultimate 64 bit 
MonitorKeyboardPowerCase
Gateway 22" HD @ 1920x1080 Ducky DK1008 w/ Cherry MX Bkack Switches Antec High Current Gamer Series HCG-620 620W HAF 922 with Red LED fans 
MouseMouse PadAudioOther
Cooler Master Sentinel Advanced Ratpadz XT JVC HA-RX700 200mm Cooler Master Megaflow with Red LED in fr... 
OtherOther
Lamptron FC6 Fan Controller 2x Scythe Slipstream 120MM @ 1000rpm+/- 
CPUMotherboardGraphicsRAM
Intel Core 2 Duo P7450 ASUSTek G50VT GEForce9800M GS 2x2GB PC2-6400 800Mhz 
OS
Windows 8.1 
CPUMotherboardGraphicsRAM
AMD Phenom II X4 955 Black Edition Deneb 3.2GHz ASUS M4A79T Deluxe AM3 EVGA GTX560 SE with Arctic Cooling Aftermarket ... G.SKILL Ripjaws Series 6GB (3 x 2GB) 240-Pin DD... 
Hard DriveOptical DriveCoolingOS
>>320GB with a 1TB External<< >>DVD/RW<< Xigmatek Dark Night  >>Windows 7 Ultimate 64bit<< 
MonitorKeyboardCaseMouse
>>22" Westinghouse WS<< >>Microsoft Wireless<< >>Antec 902 w/ Blue LED Fans<< >>Microsoft Wireless<< 
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