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

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How does the CPU Cache fit in this?

So I understand a little bit on how it's all wired together. Instructions are stored in Registers and the EIP/RIP points to Opcode that manipulates those registers (program code). However I can't ...
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78 views

Motherboard temp sensors failed?

I was fiddling around and my mobo cant read cpu temps anymore. Used to able to read it in HWmonitor and Speedfan, now it shows -1 or 0000 in bios. Has my internal sensors failed? Intel Pentium D 2.8 ...
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69 views

Start process in high priority

When windows starts I see most of the processes start in normal priority. I can manually change the priority of a running process. But what I want is when a particular process starts it be ...
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50 views

Disable 2 cores to meet 95w TDP

I have a Phenom II X4 965 BE CPU on a M5A78L-M LX/BR motherboard. The motherboard supports processors of maximum 95W TDP. The CPU is 125W TDP. So I disabled 2 cores of the CPU trying to avoid the ...
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83 views

Computer Fan Spinning Faster, But Temerature Is In The Negatives

Recently my computer has been louder than it had been in the past, so I looked into it and I believe that my CPU's fan is working harder than it did before (it's definitely not due to dust build up, ...
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2k views

Error “VT-x/AMD-V hardware acceleration not available on your system” while trying to run Virtualbox

I have to run Mac OS on virtual box for a class and it keeps giving me errors stating "VT-x/AMD-V hardware acceleration not available on your system. Certain guests (e.g. OS/2 and QNX) require this ...
282
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18answers
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If 32-bit machines can only handle numbers up to 2^32, why can I write 1000000000000 (trillion) without my machine crashing?

32 bit computers can only store signed integers up to 232 - 1. This is why we have run out of ipv4 addresses and have entered the 64 bit era. However, the number 232 - 1 (2,147,483,647) is not as ...
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142 views

confused: PPGA988, rPGA988B. what cpu socket is in my hp 4330s laptop and what cpus will it take?

Wow, I am so out of the loop these days with PC/laptop hardware. Upgrading a CPU is a whole lot more complicated than it was in the late 90s! I have an HP 4330s laptop that according to CPU-Z, ...
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1answer
72 views

2 Processors server and RAM

I am in the process of buying a Dell T620 server with two E5-2660v2 processors and 128GB of RAM. Dell told me that if I order 128GB of RAM I had to have 64GB per processor. Why is this? Let's say I'm ...
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1answer
210 views

How do I tell what component is preventing my computer from booting for the first time?

This is the build: Intel Core i3-4130T Haswell MSI H81M-P33 LGA 1150 Intel H81 CORSAIR CX series CX430 430W ATX12V v2.3 80 PLUS BRONZE ADATA XPG V1.0 series 4GB 240-Pin DDR3 SDRAM DDR3 1600 (PC3 ...
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1answer
31 views

When connecting to computer A from computer B over a local network, when does computer A's CPU get used?

I am planning on setting up an old computer as a media center, linux web server and backup storage device. It's loud and ugly so I'm going to run it in my basement. I've got it hooked up to my ...
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2answers
106 views

One core at 3.2 GHz, one at 3.19 GHz - what's wrong?

I have an i7 which is supposed to be running a clock speed of 3.2 GHz. However, in the System dialog it shows 3.2 and 3.19 GHz. and in the task manager, it also shows 3.19: What am I missing ...
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2answers
16k views

How to reduce Google Chrome's CPU usage?

I have started using Google Chrome (up to date) on Windows 7 (everything up to date) on a clean install I did a few days ago and compared to Firefox I am seeing huge CPU spikes (up to 100% CPU ...
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1answer
140 views

What does 4 + 1 CPU cores mean?

For example, the Nvidia Tegra 4 is described as having 4 + 1 CPU cores. Is this simply a conventional way of saying that it has 5 cores, or does that phrasing imply something different? ...
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2answers
130 views

Why CPU emulation is slow [closed]

Different CPU (IA-32, ARM9 etc.) operations should be equivalent in their nature (move, read, write data etc.). It shouldn't be that painful for different CPUs to emulate each other. But seems like ...
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2answers
52 views

Does rapid CPU work load fluctuation wear out/damage components?

I recently downloaded BIONC (Berkeley Open Infrastructure for Network Computing) to donate some of my processing power. When this program is running, my CPU work load will fluctuate from 0% to 70% in ...
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1answer
101 views

Processor hanging and causing computer crash whilst playing games

Recently I upgraded my HDD to a 1TB and reformatted my computer (due to it suddenly taking several hours just to boot.) After that whenever I play games my computer would freeze up, become ...
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16 views

what is the meaning of some of these options in MSI CB2?

I was wondering what the meaning of some of the options in ClickBios 2 meant, and how they affect the performance. things like core vdroop offset control core OCP extender(what's the difference ...
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1answer
558 views

Not an experienced user. New (2 months) Sony Vaio running slow as hell. 100% CPU usage, 100% Disk usage, cooling fans at full speed most of the time

I'm not too computer savvy so sorry if I'm missing something important or I say something dumb. I'm really frustrated and I'm trying my best to learn and solve this problem. So I bought this Vaio ...
2
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2answers
110 views

Is my CPU performing as it should?

Recently my frames in a game I play have dropped significantly. I am trying to troubleshoot this and have got the the stage of the CPU, as you can see I have an Core i7 3770k, and although I know a ...
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0answers
61 views

My HP P6910 Core 2 Duo laptop runs very slow

My laptop is working very slow, CPU remains busy. Installation takes 4 to 5 hours. I have checked hard disk and RAM but no indications there. When I open the laptop I see the processor has normal ...
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1answer
2k views

Windows 8.1 Pro - CPU Usage Stays at 100%

About an hour ago, I noticed that my laptop had gotten noticeably slower. My laptop is extremely fast, so this extreme decrease in performance prompted me to look at the task manager. In the task ...
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1answer
47 views

Arctic Silver paste for a new laptop?

My new laptop will be delivered in a few days, somebody recommended me to apply Arctic Silver right away. Cost cutting has forced manufacturers to use very inferior thermal pastes and I will see a ...
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1answer
219 views

Why do we need multiple levels of cache memory?

In general a cache memory is useful because the speed of the processor is higher than the speed of the ram (they are both increasing in speed but the difference still remains). So reducing the number ...
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1answer
51 views

Is My Mobo Dead?

My desktop is on the fritz and I think my motherboard's (MSI 890FXA-GD70) to blame, but just to be sure I wanted to ask. It started with my CPU (AMD Phenom II 975 BE) clock spazzing out. It went from ...
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1answer
65 views

Supporting Hyper-Threading technology by motherboards for Intel core i7 CPUs

I want to buy ASUS P8Z77-V LX motherboard but on Asus website there as no information about supporting Hyper-Threading technology. I want to buy INTEL core i7 CPU, this CPU supports this technology. ...
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1answer
249 views

Temperature sensors showing high CPU temps, CPU not super hot

(For monitoring heating I have used SpeedFan, Ai suite II (asus mobo software), RealTemp and my bios (on an Asus Gene IV Rampage)) SpeedFan says 100-120 C RealTemp says 30-80 C at idle (30 C ...
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1answer
179 views

What does cpu MHz mean in /proc/cpuinfo?

I own Quad-core Core i5 laptop. I got curious to know how much time it takes for my laptop to execute a simple instruction. So, I did cat /proc/cpuinfo. Below is the relevant portion of it, model ...
2
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1answer
369 views

High CPU temperature of new Clevo w350ST Laptop

I just recently bought a new Clevo W350ST laptop. While everything has been working extremely fine in it, its the CPU temperatures on the laptop I am worried about. The Tj Max. for my processor (i7 ...
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2k views

svchost.exe using lots of memory slowing my PC down [duplicate]

On my Windows 7 32-bit. svchost.exe is using lots of Memory and slowing my PC down big time. I already have auto update turned off and it is on manual mode. How can I fix this problem? Thanks
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1answer
56 views

Should I be worried about my cpu fan?

I recently started to build a new cpu. Everything seems to work fine, but one thing that scares me is that during testing the system out, my fan didn't start up a few times. This fan is just right out ...
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287 views

What kind of tape do I need to tape cpu fan to heatsink in notebook?

I'm cleaning up a notebook from dust and the cpu fan is usualy taped to the heatsink all around it. This time half of the original tape was also covered with dust so I want to just replace it. Can ...
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2answers
69 views

5400rpm HDD <- paired with -> Gen4 i7 and 16GB memory

From what I understand, to get a really good performance from a laptop on heavy tasks such as video rendering, fast boot time and accessibility, you would want an i7 CPU, a lot of RAM, and a fat ...
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1answer
155 views

Matching CPU frequency and RAM frequency [closed]

CPU frequency is always much higher than RAM frequency (which is the cause of the memory latency problem). So does it mean that, for a given CPU frequency, any RAM frequency can work, and there is no ...
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1answer
52 views

CPU - motherboard compatibilty issue

I have an old PC, that has AMD Sempron CPU on 1 GHz in it. And it works fine. I would like to try to upgrade CPU with one of the old CPU's I have, that are slightly better than current one. Those are ...
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3answers
145 views

64 bit Windows 7 and driver installation [duplicate]

I am planning to install the 64 bit version of Windows 7 OS and just wanted to confirm if the OS would install the drivers for my system automatically or I'll have to install them manually after the ...
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1answer
66 views

When choosing a CPU to install in a barebones laptop, what compatibility factors should one consider?

I have a sizable quantity of bare-bones HP 6570b ProBooks, and am looking at various CPU's to potentially install. The socket type is G2 and it has to be compatible with the Intel HM76 chip-set, but ...
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2answers
93 views

Why are CPUs better than GPUs at regular tasks?

I'm trying to understand the relative strengths of CPUs vs GPUs. Quoting popular opinion, "the more cores, the better", so by that logic, a GPU should always outperform a CPU, and it does with ...
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2answers
909 views

DMI 2.0 vs 8.0 GT/s QPI?

How can I compare directly one Intel Xeon E5 1xxx CPU with one E5 2xxx, when it's about the communication speed with memory and peripherals? 1xxx use DMI 2.0, while 2xxx QPI. Let's say the processor ...
0
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2answers
51 views

Can any compiled-language code be traced, line-by-line, to individual bits of each CPU-instruction in binary? [closed]

I realize we can dump equivalent assembly from C++ code using many debuggers and such. But what about binary code? The formatting of bits in each byte(s) that make up the actual machine instructions, ...
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1answer
27 views

Do third party cooler's T.I.M. contain adheasive?

I'm building my first computer, and I purchased a cheap Thermaltake CL-P0503 cooler in a bundle. I was originally going to grab some high quality thermal paste, but I forgot to purchase some. My ...
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0answers
23 views

P8Z58 - Disabling turbo mode

I have a P8Z68 DELUXE /GEN3 motherboard with a Core i7 2700K CPU rated to go to 3.5GHz. I want to know how to disable Turbo mode in the bios cause my pc seems to go from 3.5Ghz to 3.9 under load and I ...
0
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1answer
41 views

Testing laptop hardware [closed]

I purchased an untested Dell Latitude off ebay and only have 14 days to return if the hardware goes faulty. What are the best tools I can use to test the hardware out. I'm going to keep it running ...
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1answer
208 views

Photoshop sees wrong graphic card

I've got i7 processor, 8 GB of RAM, integrated Intel HD Graphics 3000 and GeForce 540M in my notebook. For some reason in "Edit > Performance > Graphics Processor Settings" Photoshop CS6 sees only ...
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49 views

Does Windows know how to appropriately assign threads to a quad-core processor that has Hyper-Threading on?

So, I have been trying to google for this answer, but I cannot find a direct technical answer to the question. (Or if it did, it was in a confusing way) So, say you have a program/game that uses 2 ...
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432 views

UxSms service (dwm.exe) using 100% of my CPU after about a minute of idleness

Since 2-3 days ago, I've had a problem. Whenever I watch a YouTube video or just don't do anything at all, after one-two minutes my CPU load goes crazy. I used Task Manager to find out that dwm.exe is ...
0
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1answer
38 views

Constant CPU utilization on consumer hardware [duplicate]

A computer in a manufacturing environment is running software that is in a constant communication loop with a PLC. An artifact of the implimentation is ~20-30% CPU utilization 100% of the time (24/7). ...
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2answers
270 views

Is my processor 2nd or 3rd generation?

I bought HP Pavilion laptop & processor info is: Intel(R) Core(TM) i3-3217U CPU @ 1.80GHz (4 CPUs), ~1.8GHz. Please confirm whether it is 2nd or 3rd gen i3 processor?
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1answer
44 views

CPU recommendation [closed]

I have to build a PC to use a desktop application (a WPF one). Then, in this PC I will have to run a SQL Server 2008 R2 instance, host a WCF services project via IIS, run Reporting Services Server and ...
2
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1answer
176 views

How to interpret this /proc/cpuinfo data?

I'm using Intel Xeon E5-2620 processor. These are something I'm confusing about. I'm using Linux and in /proc/cpuinfo it says model name : Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz According to the ...