Overclocking is the process of forcing something to run at a speed higher than the manufacturer's intended specifications.

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How do I overclock my RAM?

I just built a pretty awesome computer on a i2700k Sandy Bridge processor and am pretty happy with it thus far. By just changing the multiplier, I have things fairly stable at 4.6 GHz on air, moving ...
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2answers
8k views

what are the rules for SLI ( GTX 550 Ti )

I got ASUS GTX 550 Ti and I want to SLI it with another graphic card. I heard that not all graphic cards are good idea to SLI, (or not all combinations) because sometimes the final performance could ...
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1answer
970 views

Is it possible to overclock a 2011 i7 macbook pro

I am just wondering if it is possible to overclock a 2011 i7 2.4 macbook pro? Either with software or if there is other ways of doing it.
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2answers
134 views

Serious voltage and temperature problems

My computer has been acting up when I play games so I wanted to look into why. Issue 1: GPU Temp According to afterburner and speedfan my 8800GTX idles at 90 degrees and then when playing games ...
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1answer
749 views

Core i3770k running too hot?

I just installed a Core i7 3770K. I have a Corsair H60 Hybrid CPU cooler with fans on both sides of the radiator for a push/pull configuration. I have the airflow for the radiator pulling in air from ...
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0answers
397 views

Why is the clock speed readout greater than the maximum?

(click for full-size image) What is this madness? (I'm aware that the top number refers to the non-Turbo Boosted clock speed, but what of the others?)
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1answer
619 views

Possible SSD failure after overclock

I (foolishly) attempted an overclock on my newly-upgraded (new mobo and SSD) rig, and now I cannot boot. The relevant components: AMD Phenom II X4 965 - 3.4Ghz (overclocked 10%) Kingston HyperX DDR3 ...
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3answers
1k views

Overclocking the E-350 APU on Linux

Is there any way to over/underclock or change the voltages of the AMD E-350 APU on Linux?
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4answers
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Will overclocking your PC with no internet access screw up the system time?

Let's say you have a PC which is not connected to a time server, so it has no external methods of keeping track of time. You turn the machine on, and set the time and date in the BIOS. Then you ...
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6answers
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Can overclocking really break hardware?

My question may seem dumb, but, really, I want to think about it objectively. Let's first say that I'm not expecting to hard overclock a computer (ie. doubling the clock of the CPU), but I'd go by ...
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1answer
224 views

Testing watercooling system under load

I recently built a new system based on the Intel Core i7 3820K. When I purchased the chip, the salesman informed me that the new intel chips no longer include a thermal solution of any kind. After ...
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2answers
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Overclocking: Is my gpu too hot?

I have a radeon hd 6670, and I have overclocked the GPU clock to 850 MHz and the memory clock to 1040 MHz. I then ran Diablo 3 with SpeedFan running in the background to check the heat of the GPU, and ...
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0answers
835 views

Overclock Failed

This morning when I tried to turn on my computer, the monitor would not display anything. The computer is on, but no UI on the monitor and no beep. I turned off the computer and turn it back on ...
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1answer
1k views

Is there any way to limit the turbo boost speed / intensity on i7 lap?

I've just got a used i7 laptop, one of these overheating pavilions from HP with quad cores. And I really want to find a compromise between the temp and performance. If I use linpack, or some other ...
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1answer
6k views

Underclocking without BIOS option

I have never over/under/downclocked my laptop, however it is seriously suffering from overheating. I have cleaned it out and am running the fan at full speed the whole time. I also have turned the ...
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2answers
1k views

Undervolting & Overclocking the Llano A6-3400M

The AMD A6-3400M comes with a significantly higher stock voltage than is needed to operate stably. Has anyone tweaked and stress tested all the P-states to lower voltages? I've stress tested the ...
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1answer
261 views

H61M-P23 B3 With I5 2500k - Is the multiplier locked?

I have seen a couple posts in some random places that say you cannot use an unlocked processor (K) with the 'H61M-P23 B3' motherboard. Can anyone verify this with a reference or explain their ...
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1answer
252 views

Dual channel the same in CMZ16GX3M4A1600C9 or 4 CMZ4GX3M1A1600C9?

I'm trying to decide between buying a 16GB (CMZ16GX3M4A1600C9) kit or 4 individual 4GB modules (CMZ4GX3M1A1600C9). For some reason the place I'm getting them from (not newegg) its cheaper to buy the ...
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1answer
2k views

Is it smart / possible to overclock a laptop?

This may sound kind of dumb but I curious. I have a Lenovo T400 laptop with an Intel T9400 CPU. Would it be possible to overclock my notebook? Would it be a really dumb thing to do? I would ...
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1answer
353 views

GPU running underclocked / under normal speed?

I have tried to overclock my card. Seemingly it worked, and the GPU-z shows the OC speed (see GPU3.png). However, current readings are REALLY far from the normal speed of the GPU. That's what I can't ...
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1answer
913 views

Overclocked Intel Core 2 Duo E4300, what now?

I have overclocked Intel® Core™2 Duo Processor E4300 CPU. I changed FSB from 200 to 220. Multiplier is x9. The old core speed was 9 x 200 = 1800 GHz. Now it's 1980 GHz. I runed memtest to 20 passes ...
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1answer
471 views

Overclocking GPU

I am running a AMD Radeon HD 3650 Graphics Card. My Graphics Card Software (Catalyst) came with overclocking software to overclock my GPU. I have a few questions though: How bad for my GPU is ...
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Is overclocking legal? [closed]

Is overclocking your CPU and GPU classified as being legal ? If so, why don't manufacturers make overclocking easier so that just about anyone is able to play around with it ? - at own risk of course. ...
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0answers
814 views

How can I overclock my Pentium 4? [duplicate]

Possible Duplicate: How to Overclock a Dell Inspiron 531? How to overclock Dual-Core CPU E5200? Lacking options in BIOS? I have these specs from Everest: CPU Properties CPU Type - Intel ...
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2answers
128 views

What should I consider to figure out the power needs for my PC?

I have opened up my tower and looked at the power supply case and all the numbers on it. I am very lost. I want to install a second graphics card into my machine so that I can connect a second ...
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74 views

How to get to BIOS with new faster memory

I built my machine in 2008, it has: mobo: MSI P45 Diamond CPU: Intel Q9450 RAM: 2GB (2 x 1GB) DDR3 1333 and various and sundry additional parts that I don't think have anything to do with my ...
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1answer
1k views

Overclock and Underclock graphics card using Registry Keys [closed]

Is it possible to use the registry to over clock or under clock a graphics card?
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1answer
7k views

How do I flash my RAM's SPD to make it work with a MacBook Pro?

I have an early 2011 17" MacBook Pro (MacBookPro8,3). I opted for the CPU upgrade (2.3 GHz), but decided to put in the extra memory myself. I briefly checked that the Intel specifications stated that ...
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1answer
7k views

Can I overclock an ATI Mobility Radeon HD 4250? If so, how?

Can I overclock ATI Mobility Radeon HD 4250? If so, how? My laptop is a Dell M5010 (aka 15R) with AMD Phenom II N850 69°C Caspian 45nm Technology, with 8GB Dual-Channel DDR3 @ 665MHz (9-9-9-24).
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Is it better to use an offset or manually set CPU voltage (with respect to CPU longevitity)?

The Background: I recently built a new computer, and I'm working with the ASUS P8Z68-V Pro motherboard and Intel i7 2600k processor. While this question does not pertain specifically to my hardware, ...
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2answers
706 views

Memory Overclocking

How do I overclock my system memory (DDR3 2000) to 2000MHz? I recently assembled a new system with the following memory and motherboard: Patriot Viper Xtreme 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 ...
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2answers
802 views

What alternative methods are available for overclocking?

I'm aware that overclocking software isn't exactly the best way to overclock your hardware, but I am not sure what else to do. I have a HP computer, which has HP's BIOS which eliminates a possibility ...
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1answer
2k views

How do I overclock a dual core processor?

This is a serious problem. I want to speed up my compilation process. I have never been especially fond of overclocking, however my current compilation time for my project makes my crazy! I found ...
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2answers
1k views

How to overclock an ATI/AMD graphic card further than Overdrive allows?

I've got a fresh HD 6850 overcloked to 850 MHz with OverDrive. I heard its possible to run it at 1000 MHz but how? Please don't educate me about the risks of overclocking!
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1answer
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How to overclock Intel Pentium III 450 MhZ?

I hope this will help: Number of cores 1 (max 1) Number of threads 1 (max 1) Name Intel Pentium III Codename Katmai Specification Package (platform ID) Slot 1 SECC2 ...
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At what working temperatures will my gpu not only survive, but have a long healthy life

There are plenty of questions about what a safe gpu temperature is, but these seem focused on what temperatures a gpu will survive at in the short term, regardless of whether it may shorten the cards ...
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11k views

How can I test actual CPU clock-speed in Linux

Good evening, I have a new Core i7-based Sandy Bridge machine. The machine was overclocked by the system builders so that it should run at 4.6Ghz when a single core is under load. However, the ...
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1answer
289 views

help! striped raid causing bsod!

This links to my previous question. I've been running my machine (mobo is XFX 790i Ultra Sli) off a raid 0 for a couple of years now with two Samsung f1 1tb drives with no problems. I've also been ...
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2answers
265 views

Help getting my memory running at it's rated speed

I'm running a 4Gb Kit (2x2Gb) Corsair XMS3 DHX DDR3-1600 RAM (can't find a product page any more but here's the exact same review I originally read that led me to buy the stuff, that gives hopefully ...
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2answers
4k views

Is possible to overclock a SSD?

Anyone already had tried to or knows if it is possible to implement in some way an overclock an SSD (or get the same benefits by tunning some parameter on an SSD)?
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2answers
3k views

Ram detection issues (12gb) on X58 Asus p6t deluxe motherboard (6 x 2gb ddr3 dimms)

I've been using this ASUS p6t deluxe + i7 920 + 3x2gb G Skill DDR3 1333 for more than 2 years without any issue. A few months ago, I added 3 more dimms, the exact same brand and model, bought from ...
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How do I attain safe temperatures for my new i7-2600 non-k?

I'm apparently having some cooling problems. I recently moved from a Core 2 Quad Q6600 on a P5K with 4GB and a Asus ATI 5770 running Windows XPsp2 Pro, to an i7-2600 non-k on a P8P67 (latest BIOS) ...
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1answer
3k views

Can underclocking the GPU be dangerous?

I used to underclock my nVidia GeForce 8800GT by halving it's core and memory frequencies. This would make the card about 3 Celsius cooler. I would only bring it back to stock frequencies while ...
2
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1answer
1k views

Underclocking a P4 to get a power-efficient NAS

I own an old Pentium 4 541 (3.2GHz Prescott) box which I want to convert to a NAS machine. As a NAS, it won't stress the CPU, and will probably sit idle most of the time. The problem is that P4's ...
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2answers
2k views

Overclocking i5-2500K and Warranty [closed]

I might be building a computer for one of my friends soon and I decided to get an i5-2500K for slight overclocking and he's scared of voiding the warranty so I'm wondering: Is the warranty void after ...
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1answer
343 views

Is overclocking worth it? [duplicate]

Possible Duplicate: Should I overclock a dying PC? I have a (relatively) old computer running WinXP SP3 with an AMD Athlon XP 2800+ processor that I am thinking about overclocking to try to ...
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1answer
131 views

Motherboards with overclocking disabled

As a system builder I don't want my clients overclocking their systems. How can I find motherboards that don't allow overclocking? Is it possible to disable overclocking on existing motherboards (via ...
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2answers
3k views

Over/underclock 5870 on linux without limits?

I want to downclock my Ati Radeon HD5870's memory to 300Mhz and overclock it's core frequency to 930Mhz. I can do this on windows using Ati Tray Tools. On linux, the only way to do this so far has ...
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2answers
18k views

When is it safe to use AMD Overdrive?

I have a Radeon HD 6950, and its temperatures seem okay, so I was wondering what I would have to do to use AMD Overdrive. Would it be safe? Could I set all the adjusters to their maximums? What would ...
0
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1answer
684 views

Is it bad to run ram at higher voltage?

Let me start with I know nothing about overclocking. All I know is that my machine won't boot with all 6 ram slots full. The ram I have is supposed to be at 1.5v but in order to even boot my system ...