A CPU (Central Processing Unit) is the chip responsible for actually "doing" most the instructions given to a computer.

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Why do some processors have unofficial codes and/or bugs? [closed]

Lately I am writing (or trying) an emulator for the 6502 NES CPU. I am learning many many things, some of them really surprise me and I was wondering what's the explanation for those, in particular, ...
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84 views

Laptop unusually slow after being accidentally dropped. Hard drive was replaced but still slow

My laptop—a Dell 1747 i7 laptop—fell from my desk to the concrete floor of my basement office when my son tripped on its cord. As would expect, that was it for the hard disk. Luckily, though, the ...
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1answer
147 views

Connecting an 8 pin connector to my 4 pin CPU?

I just bought a PSU which has a 4+4 pin for the CPU. I thought that my CPU has 4 pin connector but when i removed it i realised there were another 4 on the left covered by a small plastic piece. My ...
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109 views

My CPU is overheating after unparking my CPU cores

I used a program called "CoreParkingManager" and by default it was set to 5%. I wanted to try it out, and set it to 80% and it actually improved my FPS in games, but the CPU was overheating, so I was ...
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209 views

Heatsink Mount (standoff) screw broke off in motherboard backplate

Partial Solution (EDIT) I returned the board and the heat sink to Amazon. They are going to have a new board to me in 4 days. Honestly, to anyone reading this, I would try to do a return through your ...
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0answers
35 views

Why is Google Drive so heavy on my CPU during uploading files? [duplicate]

According to Task Manager on Ubuntu 14.04 uploading file using Firefox 34.0 to Google Drive takes more than 6 times more CPU power that uploading it to ADrive (12% baseline, 50% for Goggle, 18% for ...
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1answer
43 views

My computer is not reading my newly installed processor right [duplicate]

I have just replaced my processor witch was a intel duo core 1.87, with a new intel duo core 2.66. My computer boots up fine with the new cpu installed but when I go into the device manager to check ...
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1answer
34 views

Looking for the right CPU and GPU to watch streams on two monitors

I'm looking to buy a laptop for my dad. I've narrowed it down to two choices here, budget is pretty limited and I've found both of these at 399Euro: 1 - CPU: i3 3110M; GPU: NVidia GeForce 820M; 6GB ...
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14 views

Cpu time of process on each core, linux edition

I have a program parallelized with OpenMP and need to know the load distribution. If all cores complete at the same time, everything is fine, but probably some finish early while others take forever. ...
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1answer
164 views

CPU Usage High - Physical Memory Low on Virtual Machine (VMWare)

I run a development environment in a Windows 7 VM (on VMWare) and am running into an issue in the VM where my CPU Usage sits at 100% and my Physical Memory stays around 40-50%. My computer has 24 GB ...
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1answer
25 views

Can I install windows & ubuntu on an intel xeon 1230 which doesn't have onboard graphics?

I'm building a PC. I've bought an nvidia graphics card and need a CPU. I was thinking of an Intel Xeon 1230. This chip doesn't have on-board graphics. But will I be able to install Ubuntu & ...
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1answer
61 views

Are Intel Processors' GHz really matter? [duplicate]

It has been confusing me for a long time. Say, an Intel 4th Gen dual-core i5-4200U which clocks at 1.6 GHz and up to 2.6 GHz and an Intel 4th Gen dual-core i3-4160 which clocks at 3.6 GHz. As I see ...
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1answer
35 views

Does JVM depend on the architecture of the processor?

From what I understand, JVM needs to talk to the operating system as well as it generates machine code commands for the processor. If my understanding is correct, when I try to download jre how does ...
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1answer
321 views

win 8.1 explorer eating CPU when opening “Device and Printers”

I'm facing a peculiar issue that I can't fix. I discovered recently that my Win 8.1 Update 1 (with all updates through WSUS offline) starts eating all the CPU when opening "the device and printers" ...
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147 views

Laptop's processor overheats and turns it off

Model: Samsung R590 CPU: Intel i5-450M 2.4Ghz -> 2.66Ghz OS: Windows 7 Home Premium 64 with SP1 (after restoring tested also without any updates) It has 4 years now. After 2,5 - 3 years it ...
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113 views

Is Intel(R) Core(TM) i5 CPU M 480 @ 2.67GHz processor compatible with this Inspiron 15 laptop?

Is Intel(R) Core(TM) i5 CPU M 480 @ 2.67GHz processor compatible with this Inspiron 15 laptop? http://www.dell.com/us/p/inspiron-15-3531-laptop/pd?oc=fndoc3001h&model_id=inspiron-15-3531-laptop ...
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1answer
47 views

What happens when KVM virtual machines try to use the same core of a processor?

I have many virtual machines hosted with KVM on a single server. The problem(?) is there are now more machines then cores of the processor. From what I found I cannot use more RAM then I have but can ...
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0answers
57 views

PSU/GPU/MOBO failing? I'm at a loss here

Here is my total system specification: System Information Time of this report: 11/22/2014, 21:41:56 Operating System: Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack ...
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2answers
4k views

What is a PCI-Express Lane?

I am reading an article bemoaning i7-5820K Will Only Have 28 PCI-Express Lanes compared to its sibling processors having 40 lanes. Isn't 28 lanes already too many? How many lanes would a normal home ...
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2answers
57 views

Graphics card vs. motherboard compatibility [closed]

I have an MSI FM2-A55M-E33 motherboard (also an AMD Athlon x4 750k quad core processor, 4GB RAM, and 520W power supply). Is an Asus AMD Radeon R9 270X OC DirectCU II graphics card compatible?
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1answer
20 views

why does my Pc not able to power on

Am using windows 7 CPU till last week its working fine ,last week change the pc location to other from that time display wont come, but when power on CPU its getting on and also i checked the ...
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1answer
137 views

PC won't start. Not even to BIOS

I have a PC that’s just over a year old. Today, while playing a game, it suddenly shut down and I smelled a slight smell of something burning; no fire, don't worry~ After this “incident” my PC won’t ...
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1answer
53 views

What makes a better CPU more expensive?

Example: I've a i5-3570k in my computer. ARK suggested price is $235.00 I've gone for a i7-3770k, but it's way more expensive, $342.00 Then you have a Intel Celeron G1820 for only $42.00 What makes ...
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38 views

Strange CPU/GPU 1 second stutter issue (video included)

I would be very thankful to whoever knows what causes this issue. I dont have much to explain but as you will see in the included video clip the computer stutters exactly at the same time as the Real ...
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3answers
218 views

Why does reducing CPU frequency improve battery life?

Shouldn't we have roughly the same battery life regardless of the frequency since the higher the frequency is, the faster tasks will complete so in the end the CPU, despite running at a higher ...
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64 views

Processor benchmark comparison between intel i7 950 and i7-4770k [closed]

I plan to purchase a new computer (new processor -> "i7-4770k 4Ghz") only because I want more power regarding calculation. I have a java program that does a lot of calculation and I have an older ...
2
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0answers
108 views

Troubleshooting processor upgrade, Paxville on Dell Precision 670

I've got a Dell Precision 670 with an XC837 motherboard and BIOS at version A07. I'm trying to upgrade this from using a single-core Celeron to a dual-core Paxville processor. When I install a single ...
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0answers
58 views

Difference in performance between ARM and “traditional” CPU on Raspberry PI example

I'm not sure if my question fits here, but I will give it a try since it does not seem to fit any other StackExcnhange. New day ARM processors are slower (if you look at MHz - 500MHz in RPi case). ...
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0answers
198 views

How to get more BCLK from non-k Corei5 cpu Haswell

I have a Core I5 4570 Haswell with Cooler Master CPU cooler with Asus Z87-plus Board and Asus ATI 7970 and 8 Gig DDR3 Crucial Ram @ 1600 mhz. I'm Using Windows 8.1 X64. It’s a Non-K cpu so the ...
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69 views

Does running CPU intensive tasks wear down my computer?

I do a lot of statistical analysis in R (which uses a lot of CPU and RAM). Whenever I run my analysis, my laptop's fan runs at top speed. Monitoring tool shows that 1 of my cores runs at 100%, the ...
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1answer
37 views

CPU rapidly overheats

I've been running my system for about a year and a half, the only heat issues I had was with Battlefield 4. I noticed then that my CPU easily went to 80°C, so I cut back on the Anti Aliasing etc, no ...
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153 views

How to unlock the hidden (locked) settings in BIOS on Linux?

I got a HP 255 G2 laptop and I am dual-booting Ubuntu 14.04 (32-bit) with Kali Linux 1.0.9 (64-bit).I got an AMD quad-core CPU,which runs at 1.5 GHz,so I want to overclock it at 2,0 or 2,5 GHz but I ...
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2answers
335 views

AMD 8 core vs. Intel 8 core - Are they too much different?

So somebody was telling me that an AMD 8 core processor only really has 6 cores as opposed to an Intel having a full 8 cores. Is there any truth to this at all?
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Are there disadvantages to big memory in upgrades?

I have a Lenovo T430 computer. The physical memory is 4GB DDR3 1600MHz. I work on big data analysis an often the memory is not sufficient. So, I want to upgrade my physical memory. I hesitate to ...
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1answer
65 views

System won't respond to Power Switch

I ran into a problem - I can't start my new system at all: when Power Switch is pressed nothing is hapenning, even cpu/system fans are not moving for a split second. And I just was at the shop where ...
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1answer
43 views

Byte addressable memory and ISA [closed]

I am trying to clear some confusion regarding instruction set architecture and how memory is accessed. Basically I know that in byte addressable memory, data is stored byte by byte either in ...
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19 views

Intel Processor, black screen. bios

I was trying to put Intel® Pentium® D Processor 820 (2M Cache, 2.80 GHz, 800 MHz FSB) in my computer to replaced my old one (Intel 1.8GHz Dual Core) and when i was put it, computer cooler started to ...
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32 views

What are the signs of a dying CPU?

I've been looking up after market coolers for my CPU since it has been running hot recently. I see a lot of forums saying that this-or-that product will "Extend the life of your CPU" by making it run ...
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2answers
1k views

Task Manager shows one processor (and not multiple cores)

I've tried to find a solution, but I haven't had much luck. The photo says it all: I'm supposed to have 4 cores, but they're not showing up. What gives? msconfig advanced boot options also only ...
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2answers
218 views

What does the BASE clock speed of an Intel CPU really signify, now that we have Turbo Boost and SpeedStep

Intel now sell their CPUs with an advertised Core Clock speed, and a Turbo Boost (up to) speed. As well as this, thanks to SpeedStep (dynamic frequency scaling), a CPU will often underclock to ...
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1answer
88 views

What is the significance of CPU clock speed differences between different generations/types of processors? [duplicate]

I currently have a computer equipped with a quad core Intel Core i5 430M / 2.26 GHz. I noticed that the clock speed of the CPU to be higher than most of the i7 Haswell processors which are about ...
0
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1answer
42 views

Spontaneous reboots of system

I have an older desktop (i7-920, 2.66 GHz) which I built a number of years ago but have noticed that it now spontaneously reboots (with differing error messages). This is a secondary machine with my ...
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78 views

Asus motherboard with 'CPU_LED' on

First, Here are some pictures of what I'm seeing. Here is by build: CPU | AMD FX-8320E 3.2GHz 8-Core Processor CPU Cooler | Silverstone AR03 81.4 CFM Sleeve Bearing CPU Cooler Motherboard | ...
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2answers
66 views

CPU higher than maximum

Hi so I bought a new laptop with an Intel i7-4510U processor. Its max cpu it says is 2.0ghz(Which I thought was low). How is it running at +2.8ghz. Is this affecting its performance? Or is there some ...
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35 views

ASUS P9X79 WS sudden failure

I used my build for only 4 hours, then suddenly it shut itself down and now refuses to boot. LED light CPU_LED in glowing blue. According to manual it shows that problem is in CPU. What might the ...
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1answer
68 views

Which pins to mod on Intel Celeron E3300?

I have an Intel Celeron E3300 core duo at 2.50 GHz and 800 FSB. I want to up it to 3.33 GHz and 1066 FSB. Motherboard is ECS G31t-M7 and supports it. Here's a picture of my actual CPU:
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1answer
378 views

Can I Upgrade a CPU from Intel Core i3-2350m 2nd Gen to core i5-2450m 2nd Gen?

I have a laptop equipped with Intel Core i3 2350m 2nd Gen. Well, actually my laptop has two different models: the first one with i3 2350m and the second one with i5 2450m. As I did research on both ...
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Intel i5-4670k based system rebooting constantly

TL;DR: My PC is stuck in an endless boot cycle, but on (long?) cold boots it will boot normally for ~20 minutes. Never had any major issues with this build in the past 6 months of owning it (besides ...
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3answers
321 views

My New PC fans are super loud

I have 2 large fans in my case it's mATX case the key components are: Asus H97M-E Motherboard & Hydro Series™ H55 Quiet CPU Cooler Now the motherboard has 3 (4 pin) connectors for CPU Fans ...
2
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1answer
66 views

Address space of Itanium (IA64) processors

I've recently learned that AMD-64 (x86_64) processors - while theoretically capable of addressing 64-bits of address space, actually only address 48-bits. Evidently, AMD did not think a full 64-bit ...