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

learn more… | top users | synonyms

7
votes
3answers
2k views

What exactly does “(OC)” mean in products description

Note: this is not a shopping recommendation request I want to buy a nice and fast RAM and a motherboard that supports it. Lets say that I would want to take this RAM (2400MHz), and put it into this ...
2
votes
4answers
2k views

Is overclocking RAM worth it? [closed]

I am going to purchase a motherboard that supports up to DDR3 2400(O.C.). I have seen things saying that overclocking RAM is not worth it. Is it worth it to buy memory that is rated for DDR3 2400 ...
0
votes
0answers
201 views

AMD Overdrive Triangle Artifacts all over screen

I was in AMD Catalyst Control Centre (CCC) and saw the AMD Overdrive function so me thinking this could cause no harm I messed with the settings. I didn't put the settings up high at all. I then click ...
1
vote
0answers
862 views

How can I overclock my 8400GS to its limit without making the driver crash?

Nvidia GeForce 8400gs EVGA 512MB(It comes with a small fan) I know this isn't the best card to overclock, but adding 200Mhz really helped me with 15+fps on a game and I was wondering if how can I ...
0
votes
1answer
299 views

My graphics card temperature is always the same?

Even after I overclocked it? Seems really odd it stays on the range of 45-48 Celsius. before overclock After overclocking I'm scared that the number is not correct and my card is frying.. why ...
1
vote
1answer
423 views

Is my Nvidia 8400GS overclocked? If not, how do I do so?

Specs of the 8400gs My card I'm trying to play a game and I'm only getting 20~ fps with everything set on low. I know this isn't the best card for gaming, but it's all I have :/
2
votes
1answer
117 views

Thermoelectric cooling (TEC) combined a liquid cooling system (LCS) module for lower temperatures

I have a new liquid cooling system (LCS) on the way (XSPC RS360 and Raystorm Kit), and it seems like a shame letting my good nick CM V8 cooler go to waste. So in pulling a few new and old pieces ...
0
votes
1answer
1k views

Overclocking a nVIDIA GTX 660M GPU?

I have a MSI GE60 0ND laptop with a GTX 660M GPU. When I play games like Minecraft or Portal 2, the core clock is stable at 835 MHz. Recently I tried to overclock it using MSI Afterburner but it ...
1
vote
1answer
82 views

Watercooling two HD7970

I want to watercool my two HD7970 cards. Would a single 240 rad (e.g., xspc rs240) be enough? Currently I'm running very gpu-intensive tasks and the cards are overheating (85+). The case is corsair ...
2
votes
1answer
540 views

overclock atom n2800 CPU

I have a netbook (EeePC 1025C) with atom n2800 1.86GHZ CPU. I tried to use SETFSB to overclock, but I can't find the required 9LPRS432AGLF clock generator. In the BIOS there is no overclock option ...
1
vote
0answers
157 views

OC'ing a Sapphire 7950, problems with memory clock

I bought a new rig with sapphire radeon 7950 flex w/ boost. Good scores initially in 3dmark 11, around 7300 stock. Problem is, as soon as i start overclocking, issues arise. the core clock is at 860, ...
1
vote
1answer
332 views

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 ...
1
vote
2answers
4k 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 ...
0
votes
1answer
552 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.
1
vote
0answers
712 views

How does one calculate voltages for overclocking? [closed]

So, all I know is voltage and clock have something to do with each other. Unstable if too low voltage Too high voltage, and too much heat. or higher voltage + lower clock may heat less than that ...
2
votes
2answers
109 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 ...
0
votes
0answers
707 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 ...
0
votes
0answers
236 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?)
0
votes
1answer
278 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 ...
0
votes
1answer
645 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?
17
votes
4answers
1k views

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 ...
7
votes
6answers
6k views

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 ...
1
vote
1answer
186 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 ...
2
votes
3answers
1k views

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 ...
0
votes
0answers
466 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 ...
2
votes
1answer
696 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 ...
3
votes
1answer
4k 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 ...
2
votes
2answers
696 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 ...
0
votes
1answer
176 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 ...
0
votes
1answer
215 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 ...
3
votes
1answer
1k 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 ...
4
votes
1answer
266 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 ...
1
vote
1answer
604 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 ...
1
vote
1answer
389 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 ...
15
votes
7answers
2k views

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. ...
0
votes
0answers
502 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 ...
2
votes
2answers
127 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 ...
0
votes
0answers
68 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 ...
2
votes
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?
1
vote
1answer
5k 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 ...
2
votes
1answer
6k 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).
9
votes
4answers
6k views

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, ...
2
votes
2answers
529 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 ...
2
votes
2answers
652 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 ...
2
votes
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 ...
4
votes
2answers
961 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!
0
votes
1answer
702 views

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 ...
8
votes
1answer
1k views

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 ...
1
vote
4answers
8k 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 ...
2
votes
1answer
239 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 ...