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

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Identify this Intel Core 2 Quad engineering sample

Which is this Intel Confidential cpu? It has 2333MHz Core + 12MB Cache
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3answers
15 views

monitor show no signal , and ambulance sound after 5 second

PC won't boot ,i have checked ram & hard-disk worked on other pc. 5 second after switching on the pc a sound like ambulance start from motherboard speaker. and no signal display message show on ...
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35 views

CPU core temperature high and cycling using stress

My new build Ubuntu PC seems to have high temperature cycling (and fan speed cycling) when testing using stress -c 4 - load up 4 cores. stress does load up to 100% but the temp and fans then start ...
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0answers
120 views

Why won't my motherboard work with two CPUs?

I (very) recently built a computer with the following specifications: (x2) Intel Xeon X5650; Supermicro X8DTI-F Motherboard; AMD Radeon R9 280X; 16GB DDR3 FB 1333MHz RAM (4x 4GB); 1TB Seagate ...
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1answer
15 views

Updating BIOS File Build Date

I am in the process of updating my laptop's BIOS to add support for a CPU however I ran into an issue when I tried to adjust the build date of the BIOS file. After adjusting the file from built in ...
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1answer
26 views

Should I let my laptop rest(and how often) during long high load?

I need to run a long process(the longer the better, like 20 hours or days) that requires +70-80% constant load(neural network learning). CPU usually is at 62-65 celsius during this load and the cooler ...
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1answer
41 views

How to tell if CPU is actually overheating or is a false positive?

How does the CPU know it's temperature? I've been having trouble turning on my computer as I keep getting "CPU fan error". I reapplied thermal paste and got a new heatsink/fan and still the same ...
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1answer
18 views

How To Find CPU Microcode For BIOS Patch

I have recently been wanting to upgrade my laptop's CPU but as it only has support for up to a dual core i3 I was looking to find the required Microcode for patching/updating my BIOS. I haven't been ...
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2answers
59 views

Can't get Intel heatsink back on

I took off the CPU heat sink to blow out the dust. Now I can't get it back on. I've tried everything I red from Google: I pull up the black pins so they're inside the white part before putting the ...
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0answers
6 views

Linux RT vs 'niceness' priority and preemption

I wanted some clarification on the differences between real-time linux process priority (-99 - -1) and normal user-level 'niceness' (0 - 40) priority, and the effects on scheduling and pre-emption. ...
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0answers
8 views

Change CPU reported name on Virtualbox or Vmware Guest OS

I want to find a way to change the name of the cpu on the Guest OS of a virtual machine (either virtualbox or vmware). For example, while my real pc has an intel i5-5200u I want the virtual machine ...
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1answer
41 views

All of a suden CPU over heat error on boot

I recently moved houses and took my desktop computer with me. Before moving, I dusted it out using compressed air and took the heat sink off the CPU and dusted it out too. When I reassembled the ...
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operations process in a computer

Is it true that all high-level operations in a computer (say, copying, pasting, web surfing, running apps etc) are all finally converted to micro-operations (say, arithmetic, logical and shift) and ...
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0answers
9 views

I am running Eclipse Mars 4.5 , My CPU usage goes beyond 100% and suddenly all system stops

My system Info:: Model: Dell vostro 1015 RAM: 4 GB (2 GB extended) Processor: CORE 2 Duo Software's installed Eclipse Mars(STS and M2E plugins installed) MySql Crome Quick Heal Antivirus I have ...
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0answers
13 views

Algorithms implemented in Java to measure multi-core CPU performance [closed]

I've been using Linpack and SciMark2.0 algorithms to evaluate CPU performance. I found those here: http://www.netlib.org/benchmark/linpackjava/ and here: http://math.nist.gov/scimark2/ They work ...
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1answer
21 views

LGA775 motherboard cpu support

My motherboard says it doesn't support Pentium D 925, 935, 945. It supports 920, 930, 940, 950 but I inserted 925 and it worked. Could it cause any problems or incompatibility in some stuff? Why it ...
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0answers
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hardware virtualization on Intel i7-4790K/Asus maximus vii ranger/Win10 Pro [duplicate]

After a power failure my system seems to have lost its virtualization capabilities. CPU is an i7-4790K (http://ark.intel.com/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz) ...
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1answer
33 views

Is the computer BIOS specific to an architecture

Is the BIOS manufactured with the processor in mind? Suppose I have a 32Bit Intel processor and I wish to to upgrade to a 64 Bit Intel later. (Assume this is possible & not just a switch ...
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Laptop locking up with weird image displayed

Here's a video with 4 examples (filmed at different times) of how my laptop has been locking up. It's 2-3 years old with an Intel i5-3210 processor + 16GB RAM. It started doing this once every few ...
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0answers
25 views

How would I go about overclocking my Intel Pentium N3700?

I've searched all over the 'net for this one, and I couldn't really find anything that would allow me to overclock my CPU. My CPU model is an Intel Pentium N3700 quad-core operating at 1.6 GHz base ...
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1answer
38 views

Does the CPU or motherboard throttle?

Can a CPU throttle itself, or is it the motherboard that does it? By throttle, I mean when the CPU underclocks and undervolts itself due to high temperatures.
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Linux cpu hotplug not working as expected

I'm testing linux cpu hotpluging on normal desktop 8-core AMD machine. Problem seems that after onlining a CPU again taskset and kernel refuses to move and/or schedule any tasks on the core. E.g. ...
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0answers
20 views

why is a laptop with dual core processor with 2.4GHz more practical than a single core 4.8GHz processor?

Hi I am looking to get a laptop but I have been reading that dual core processor with 2.4GHz is better than a single core 4.8GHz processor. Could someone explain exactly as to why that is?
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43 views

CPU (with integrated GPU) UPGRADE with Linux Mint (from old Pentium G620 to i7-3770)

I have a system based on Linux Mint working very well, I am really happy of it but I am a newbie with Linux, only 2 years I use it and I cannot solve every problem simply like I was able with my old ...
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23 views

Windows 7 running slowly despite having lots CPU and memory free

This is my computer spec: Intel i7 2500k @ 3.4ghz Win7 64bit 16gb of ram Radeon HD 6800 My computer is starting to run progressively slower; for example, when switching between programs i.e. Excel ...
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Reading CPU model specific registers on linux

I am running Ubuntu 15.10 but testes it also on Debian. I have Intel i5-5675C processor. I am using msr-tools-1.3 to do it. I am able to read register 0x00001a2 with the following command: rdmsr ...
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1answer
40 views

Turn off HyperThreading without BIOS

I need to turn off HyperThreading from my i5-3210 notebook since it hinders my IDE performance. My i3 took about 10+ seconds from compile to run in my Android VM, same code runs in my AMD in about 10 ...
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14 views

Does such a cache (unreduce) actually exist?

I'm reading about cache replacement algorithms and one states (source, page 37) Def. A reduced schedule is a schedule that only inserts an item into the cache in a step in which that item is ...
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2answers
31 views

Desktop suddenly turned off and won't turn on again

My desktop suddenly shut down and it does not turn on again. I have tested the PSU with the paperclip trick and the fan started to spin. What do I do from here to know what is broken? There is no ...
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0answers
39 views

Crackling Audio issues on LACK of CPU load

I have been trying to track down an intermittent crackling audio issue for YEARS now to no avail. I've checked DPC, memory pagefiles, etc... back when I was running Win7 -- which also had the issue ...
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1answer
12 views

Dxdiag result about CPU

My customer sent me dxdiag result in txt file. For the processor section it says Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz (20 CPUs) The "20 CPUs" in parenthesis confused me. This CPU has 10 cores. ...
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23 views

Where does a mov instruction exactly execute in a modern cpu (considering an 80x86 assembly language)?

I'm a bit confused where a simple mov instruction executes as from the components I know a modern cpu usually has I see no place where it could be executed, I know that in a simplified Von Neumann ...
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0answers
16 views

System crashes with following Machine Error (screenshot included)

I'm running Ubuntu 14.04 LTS. CPU: Intel Core i7 950. Memory: 3x2GB Kingston DDR3-1066. GPU: Gigabyte ATI 5670. HDD: Seagate Baracudda XT - 2TB. Windows 10 and Ubuntu 14.04 dual-boot. Today it ...
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2answers
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What is the primary reason more RAM makes a computer faster?

Whilst studying for an exam I read that more RAM decreases the number of page faults. Given that handling a page fault can cost many millions of CPU cycles is this the primary reason more RAM will ...
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30 views

VirtualBox 100 percent CPU usage

I have MacOS as the host (El Capitain) and Windows 7 as a guest - however the CPU rises up to 105 %, even when it is idle. I have searched the web, eventually found this thread here on SU, but have ...
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0answers
25 views

Computer shuts down 10sec after turn on

I have a VAIO VPC-EA2GFX/B, and the OS is upgraded to Windows 10. The fan is commonly running at full speed. I tried all trouble shooting I found on net, but could not solve the issue. Finally, I ...
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1answer
49 views

Allow browser to use more cores

I wrote an algorithm with JavaScript. When I execute it in Google Chrome, it takes about 30min, which is quite long. When I open the task manager during the computation, I can see that Chrome takes ...
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0answers
25 views

CPU temperate stuck and fan at maximum speed

I have a Dell Inspiron 5548 (i7-5500U, 16GB RAM) and I'm running Fedora 24 with kernel 4.5.1. I noticed the internal fan will stay at maximum speed (5500-5600RPM) forever while the CPU temperature ...
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86 views

Low FPS in games despite low GPU/CPU usage

My system: CPU: AMD FX-6350 @ 3.9Ghz GPU: AMD Radeon R9 280X RAM: 8GB DDR3 1600MHz PSU: Antec HGC-620M 620W SDD: Crucial 256GB SSD OS: Windows 7 Professional 64-bit As the title says. At first I ...
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0answers
8 views

PC won't POST w/ Corsair Vengeance Pro 16GB

Issue I've just received a new pair of Corsair Vengeance Pro 16GB (2x8GB) 1.35V DDR3L 2133MHz but my system does not boot and shows a 53/55 error code. Current setup Interestingly the PC boots ...
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2answers
153 views

Disadvantages of Integrated Graphics Processor

I recently upgraded pretty much everything on two of my systems but my NVIDIA GeForce 210 1GB Graphic Cards. One of my system has Intel Core i3 4130 which has Intel HD Graphics 4400 and the second ...
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1answer
34 views

Are cores in a CPU package always identical?

By identical, I mean having the same signature - family, model, stepping and brand string of the CPU (which essentially identifies a CPU model uniquely) If I'm not wrong, a CPU package goes into a ...
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0answers
9 views

Intel Management Engine or Collaborative Processor Performance Control throttling

This is a laptop. Before I installed Intel's Collaborative Processor Performance Control Driver and Management Engine, for very demanding jobs my cpu would go up to 95C and the fan would go up to ...
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35 views

Some errors occur on fresh installed windows 7

First, here's my machine's specifications (refer below) Motherboard: GA H81M DS2 REV3, Processor: Intel core i3 4170, Graphics card: GTX 950 2GB GDDR5 128bit, RAM: 16GB (2 x 8GB) Kingston HyperX Fury ...
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1answer
28 views

Motherboard or CPU dead?

I have an Asus Z8NA-D6C Motherboard with dual sockets for Intel Xeon CPUs. When I go to power up the system, however, I receive no post beep codes unless I fully remove the RAM. Any suggestions? CPU: ...
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1answer
61 views

Can I share CPU over network?

I have two desktops (one of which I'm using as a server), my main machine has a weaker i5 cpu, my server has a stronger i7 cpu. On my main machine I am experiencing stutters because the CPU often runs ...
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1answer
28 views

Cpu fan does not speed up according to heat level

I have just changed my motherboard, ram and processor. Everything is going fine but fan speed when cpu heats. Fan speeds do not change according to cpu temperature. I have tried to open smart fan ...
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1answer
29 views

Hyper-Threading (SMT) Affinity and Equality

This question goes out to the Intel gurus that I know are out there. Are both threads on a physical CPU treated equally? As we know, hyper threading on intel CPUs is a system in which each physical ...
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1answer
36 views

How much RAM does my motherboard support?

I have Intel(R)Core(TM)i5-4460 CPU@3.20GHz and motherboard from ASROCK-B85Mpro4. Right now I'm having 12GB RAM running in it. My development programs are eating my memory and there are two free slot ...
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1answer
79 views

Low frame rate in every game with capable enough hardware

MSI Afterburner Monitoring Counter-Strike : Global Offensive: Sleeping Dogs: Facts and observations CPU and GPU not fully utilized. FPS stays around 20 - 25 in every game. Temperatures are ...