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

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Why does my CPU have random 100% usage peaks?

I need your help. It's been since a couple of weeks by now that my cpu reaches peaks of 100% usage on tasks that, before, never needed this much work. And it is pretty annoying, seeing that when the ...
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2answers
47 views

No Thermal paste on box CPU?

I just bought a boxed i5. There was no thermal paste included. I understand that it is normally pre-applied to the stock fan in box sets. I didn’t notice that before mounting. However there was an ...
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0answers
23 views

Is there a way to run apps/games only on discrete card of full amd laptop?

Subj. Dual graphics disabled. Windows power mode - high performance. Same in AMD Vision Engine CC's PowerPlay. Drivers was installed in "recommended" sequence - chipset and all other - first, ...
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0answers
23 views

Why has my CPU suddenly started running hot?

I have an i7 920, zalman cnps9900 heatsink and fan, arctic silver thermal paste and gigabyte mb with no overclocking at the moment. I have three internal fans one push and 2 pull. but my cpu has ...
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1answer
33 views

PC works fine on Windows safe mode, but I can't format using Windows installation CD

I have a laptop that restarts when booting Windows (not showing any errors, or any blue screens), when tested in safe mode it starts without any problems. I thought then that the windows installation ...
4
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1answer
86 views

Why does my CPU only support 32GB RAM when it has 39 address bits?

The following is the output of cat /proc/cpuinfo user@localhost:~$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 60 model name : Intel(R) Core(TM) ...
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0answers
14 views

Will SSD work better than HDD with Intel i3 m330 [duplicate]

I have Intel i3 M330 CPU and a HDD in my laptop (it's 5 years old). I was thinking about replacing the HDD drive with SSD Sandisk (read/write 500mb/s). Will I see a considerable improvement in the ...
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1answer
59 views

Does the Windows registry hold details of the processor's capabilities?

I have a strange situation which I hope someone can shed light on. I have an old HP laptop NC6320 with a triple boot running Windows XP, 7 and Linux Mint. It's an Intel Core 2 T5600 which supports ...
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1answer
19 views

PC Case Side loudly vibrating when on high fan RPM

My CPU is an AMD FX-6300 and it is cooled by it's stock cooler. The problem with the stock is that it tends to spin at 6600+ RPM when on heavy load. So every time I start GTA V for example I start ...
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1answer
25 views

Computer shutting down randomly - possibly overheating?

My computer will randomly shut down, usually it's while playing a game or doing a high processing task, and the last thing I will hear is my loud fan. But sometimes the fan won't be too loud and I'll ...
1
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1answer
33 views

What frequency does impedance matching become important [closed]

I am in the process of making a motherboard for a Pentium III processor, with a bus speed of 66/100 MHZ and core clock of 800MHZ. What I need to know is at what frequency in general do I have to start ...
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0answers
15 views

Apache Processes Randomly go to high CPU for 25 minutes on EC2/RHEL/Glassfish4 [migrated]

I have a server that receives large POST (100,000 chars max) requests and passes them back to a Glassfish4 application server using mod_jk. The requests are POST requests with a content-type of ...
0
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1answer
20 views

Is it ok to use a Haswell CPU with old power supply?

I will buy a i7 4790k, and I want to know if I might encountered any problem using it with a old 250W power supply. I'm planing to get a new power supply also, but only when a I got my video card. ...
1
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1answer
66 views

Temperatures for AMD A10 6800K APU? [duplicate]

I have AMD A10 6800K, which is APU(is a CPU with GPU included) and I wonder what are the safe temps for the WHOLE package, I don't if I'm mistaking or not. I know the ideal temperature for AMD ...
2
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1answer
49 views

My HP 4540s only boots to BIOS when it's COLD — I have to chill it in the freezer first [closed]

I have a 2 year old HP Probook 4540s, core i5. It is dual-booted with Win 8.1 and Mac 10.9.5. Has run stable for the 1 year I've owned it. The other day I got a "Fan Error 90B" on startup. Inspected ...
1
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1answer
14 views

AMD Kaveri + dedicated graphics card

I have red an article about an AMD technology used in A series Kaveri processors called HSA In few words they make processors with GPU cores, and HSA is basically a technology that makes the GPU ...
7
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1answer
261 views

Suspend process according to CPU temperature in Windows 8

Is there is a software or a way to suspend a process according to the CPU temperature? Sometimes when I render video the CPU temperature increases a lot, so I have to suspend the process in resource ...
1
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0answers
17 views

PC Won't Sustain Power

I've been using this system almost every day for the past 7 months. It has worked completely fine with no indication of error at all, but now it will not power on. Whether I use the casr button, the ...
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0answers
18 views

Calculating CPU & RSS Percentage for process from /proc fs

Im trying to understand the values in /proc//status I want to calculate cpu% & mem% used by PID, similar to top bash command. For Memory percentage usage I can do the following, correct me if Im ...
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0answers
33 views

Which piece of firmware reads CPU temp?

I'm suspicious of my CPU temperature reading and want to update the piece of firmware responsible for it. Is it baked into the CPU and un-updateable? BIOS? General chipset firmware? Does it vary ...
13
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4answers
2k views

How can a processor execute more IPS than its frequency? [duplicate]

This has been something that I can't seem to wrap my head around. Just about every modern processor is able to execute more instructions per second than its frequency. I can understand why lower ...
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0answers
41 views

CPU usage while uploading video

This may be a dumb question, but when I'm uploading video to YouTube (through the site's own upload form, in Firefox, running on Linux), I see more activity in my CPU status monitor and hear the fan ...
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1answer
31 views

Will these parts be compatible together? [closed]

I am looking to build a PC that is meant just for gaming and programming. If I go through with it, it will be my first PC build ever. I've watched a few videos to learn how to build a computer and ...
0
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1answer
33 views

How to know by which method did my system boot?

Is there any way of detecting as to whether my system started by manually pressing the power button or did it start because of a Wake-On-LAN packet??Can i store this value somewhere and use it ...
33
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1answer
3k views

Meaning of Intel Processor suffixes

I just bought a Core i7 2nd generation machine which shows the processor in the BIOS as: Intel Core i7-2620M CPU @ 2.70Ghz I have seen i7 3rd and 4th generation processors on Google but I am not ...
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0answers
24 views

Can i put my “Intel Core 2 Duo E8200” on “Intel Q965 Express chipset”?

Can i put my "Intel Core 2 Duo E8200" on "Intel Q965 Express chipset"? i know that my motherboard is compatible with "E6700" Intel Core 2 Duo Processor E6700 (2.66-GHz, 4 MB L2 cache, 1066-MHz FSB) ...
0
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1answer
48 views

Computer Don't start - Changed MOBO , PSU , VGA , RAM

I have an ASUS P5W DH DELUXE with Core 2 Duo E6400 and 1GB x 4 ADATA RAM The computer failed to start and started troubleshooting. I changed the PSU (bought 3 of them) [1x450Watt , 1x500Watt , ...
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1answer
16 views

Can't find specifications or compatible upgrades for motherboard [closed]

I'm currently looking to upgrade my desktop, but I can't seem to find anything about my motherboard. I currently have a DX4850-41c(old, I'm aware), and the motherboard is MB.GBL01.002. I know the ...
0
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1answer
39 views

PC case fan goes humming when CPU fan goes high

It's really bothering when I hear the weird noises from PC fan which is caused by CPU fan when CPU load is high. On CPU fan high rpm (e.g. while gaming) a noise from the fan installed on the side door ...
1
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1answer
25 views

Why is Xeon processor suited for HPC?

Among the different specs for Xeon, available here, http://ark.intel.com/compare/87720,84679, which aspects makes it relevant for HPC ? The processor base frequency is less than for Core i7. Why ...
0
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1answer
27 views

OS reinstallation after motherboard replacement

I am thinking of buying a new processor ( a Pentium g3250) and a compatible mobo (ASRock Intel H81M) to go with it. They will be replacing an old Celeron processor on a g31 mobo. My question is: ...
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0answers
35 views

Acer Laptop Performance Loss Plugged in

A few days ago I acquired a Brand New Acer Aspire E 15 E5-571-74AP laptop, and found a frustrating problem. Whenever the laptop is unplugged, the performance on games and other programs is stunning. ...
0
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1answer
29 views

Artic Silver ArtiClean on motherboard

So I think I messed up today. Because I was experiencing severe fps drops on my three year old Alienware m14x r2, I decided to clean it out with compressed air and repaste the thermal paste (with IC ...
0
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0answers
34 views

Getting best performance out of a virtual machine

Host Machine: Windows 8.1 Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz 2.40 GHz RAM: 24GB System Type: 64 bit OS, x84 processor What I've been running as a virtual machine Windows 7 12GB Memory 2 ...
2
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1answer
57 views

Sort --parallel isn't parallelizing

I'm trying to make unique a set of lines pulled from a file with egrep with sort -u, then count them. About 10% of the lines(all 100 characters long from the alphabet [ATCG]) are duplicated. There are ...
0
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1answer
16 views

Toshiba Laptop, fan only turns on when I'm either idle or overheating

There is a real problem with my fan on my Toshiba Satellite Laptop, it always works on max when I'm browsing the internet and doing stuff that doesn't do anything to performance but it turns off when ...
2
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1answer
67 views

Brand new computer fails to boot, powers on and off immediately, despite running fine while installing OS

I've exhausted Google search in attempt to solve my issue, and I'm fairly confident there's no single solution but I'd like to get some brand new ideas. The specs: ASUS X99 Sabertooth 8x8GB G.Skill ...
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0answers
26 views

No Intel virtualisation options present in BIOS under 'CPU setup'

I want to install Windows 8 in VirtualBox. In the process of doing this, I checked my BIOS and there's no Intel virtualization menu in CPU setup settings. I have also checked in the 'Security' tab. ...
2
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0answers
32 views

Can a processor gpu still be used for video transcoding if the motherboard is disabled from using processor gpu?

I am planning to get the following motherboard and cpu. Asrock Rack e3c224d4i-14s Intel Xeon e3-1276v3 However, after reading the spec sheet on Asrock Rack/Intel Ark, the above mentioned motherboard ...
2
votes
1answer
47 views

How is multiprocessing related to cores and threads?

I am interested in the Intel Xeon E5-1650 v3 and the Intel Xeon E5-2643 v3 processors. They both have 6 cores and a clock speed of ~3.5GHz. However, the specifications from CPU-world (screenshot) show ...
0
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1answer
37 views

Asus M5A78L LE upgrade GPU CPU [closed]

My specs are: BIOS: BIOS Date: 11/14/12 10:20:05 Ver: 15.03 Processor: AMD Phenom(tm) II X2 560 Processor (2 CPUs), ~3.3GHz Memory: 16384MB RAM Available OS Memory: 16382MB ...
0
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0answers
28 views

PC doesn't boot most of the time

PC is now dismantled down to: motherboard (Asus Z97AR) CPU (Core i7) PSU (750W) Motherboard and CPU are new, PSU is old. If you continuously turn the power on, then of, then on again, ...
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1answer
40 views

Why do smartphones have up to eight cores but many laptops still only have two? [closed]

I have been looking at buying a new smartphone as well as a new laptop. What has struck me as odd is that many smartphones now have quad cores or even octa cores, yet many laptops still only use dual ...
2
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1answer
19 views

How to best manage the run of several processes?

My computer has 6 cores. I have to run 12 processes. Each process takes exactly 10 minutes. I want to consider (for the sake of the argument only) two scenarios: I run 2 processes successively on ...
2
votes
2answers
144 views

Windows 7 running slowly despite having lots of 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 ie excel to ...
0
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0answers
16 views

What parameters should I consider when comparing two CPUs?

When comparing CPUs, it seems that basic parameters such as the number of cores or the clock rate are not enough. For instance, on a popular French e-commerce site, Intel Xeon E5-2620 v3 (2.4 GHz) ...
0
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0answers
19 views

New computer freezes

Today I built a new computer with an AMD FX-9590. Installation and upgrading of ubuntu went fine. Then i wanted to render with blender. After some time the system froze. During reboot it froze again. ...
-1
votes
1answer
158 views

What are the disadvantages of Xeon processors? [closed]

I'm considering getting a (single socket) Xeon processor, instead of a Core i7 processor, for my entry-level workstation. (The motherboard I have supports both Xeon and Core i processors.) I'm ...
-3
votes
1answer
67 views

How is microcode loaded to processor?

I read that microcode is loaded in the processor on each reboot. It resides on flash memory and when the machine is booted, it gets copied to the CPU. Or in the case of Linux, the OS itself has the ...
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0answers
28 views

CPU Clock Dropping During Heavy Load, Why?

Why during a heavy load on my CPU (Dual core Athlon 64 X2 6000+ 3.1Ghz) does my clock speed lower to 2.7Ghz? My temps are maxing out to only around 55c, this is all according to CPUID Hardware ...