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

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My Ghz is capped to 0,78

So I have this Lenovo G710 laptop and my clock speed is 2.27 GHz (max) but capped 90% of the time at 0.78 or 0.76 GHz. This laptop worked great, but one day, this just happened. Any help with this? ...
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1answer
19 views

Asus M5A78L LE upgrade GPU CPU

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 ...
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0answers
15 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
34 views

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

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 ...
-1
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1answer
24 views

Non-gaming Motherboard for games?

I read that the Z97 is recommended even for non gaming rigs, is it worth 3 times the cheapest H81 Mobo, or 2 times the H87-H97. I still want to play games, but not necessarily optimized. I have a ...
2
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1answer
17 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 ...
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2answers
78 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 ...
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0answers
13 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) ...
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17 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. ...
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1answer
121 views

What are the disadvantages of Xeon processors? [on hold]

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 ...
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1answer
54 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
24 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 ...
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1answer
69 views

Do ARM processors like cortex-a9 use microcode?

Do ARM processors (recent and old) use microcode? If so, then what for? Aren't their instructions simple enough to be executed directly without being translated into micro-ops?
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0answers
53 views

Microcode, is it compulsory? [on hold]

I understand that the microcode is actually a layer between the machine code and the hardware, used mainly in CISC processors. Do all the instructions in a typical x86 processor use microcode? Given ...
1
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1answer
58 views

How to find what is pegging CPU in linux kernel

The node of our hadoop cluster is running redhat5.3 2.6.18-194.17.4. (a old kernel version). We found some hosts are under 100% CPU utilization and specially all the CPU cores are on 100% sy% top ...
-2
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0answers
15 views

CPU overheating [on hold]

I think it all started when I placed a new HDD (now I have 2 SATA HDDs), the CPU is 100 °C, but when I restart my PC the BIOS shows 85°C I think it's still a lot but what do you think might be causing ...
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0answers
26 views

Is Apple A8 lisenced by ARM Holdings? [closed]

I extracted the following statement from Wikipedia: The Apple A8 is a 64-bit ARM based system on a chip (SoC) designed by Apple Inc. What does this exactly mean? Is A8 lisenced by ARM Holdings, ...
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2answers
53 views

Why is it said that 'The longer the pipeline, higher the processor clock rate' [duplicate]

I have been recently going through the hyper threading technology of Pentium 4. The number of pipeline stages is high in P4 and is said that it will increase the speed of clock rate. How is that ...
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1answer
41 views

How to terminate System Idle Process?

Every time i start my windows 7, the CPU gets very high, up to 60% and i haven't opened nothing yet. I opened task manager and saw what process where using the most. In the CPU usage and i found that ...
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0answers
23 views

How much barring does the CPU, BUS and Motherboard have on a pfSense system?

I am planning on turning an old Pent 4 system into a pfSense box using (4)100Mbps ports and I have a 50/50 fiber connection currently for $25/mo and was wondering if I would by at any rate slow the ...
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2answers
95 views

Massive Computer Slowdown On Most Everything

I feel dumb asking this, being A+ certified and all that, but I'm not sure what to start at. So this problem has been getting progressively and progressively worse, and now it's to the point where ...
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1answer
34 views

Safety with CPU amount on Windows 8.1

I am trying to completely max out a Lenovo Edge 15 with an Intel(R) Core i7-4510U CPU with 8 gb of RAM( 16gb coming in the mail, also the max. It also has a Samsung evo 840 256 gb SSD. My concern is ...
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1answer
29 views

CPU Overheating at boot

I've had this trouble for months but this time got further and senseless. I have a DELL Latitude E6410 4GB Ram 2.40 Ghz and no battery only cord power source. I've already had this problem before and ...
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1answer
27 views

Is Prime95 safe to use for stress testing on current generation CPUs? [on hold]

Intro Prime95 has been recommended as a system stress testing program for a long time. This thread from overclockers.com, dated October 12th, 2004, suggests using Prime95 for stress testing because ...
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1answer
20 views

PC inspiron 1525 won't boot after upgrading CPU to T8300

My PC inspiron 1525 does not boot ater I changed CPU to T8300 and updated BIOS to A17,I upgraded RAM to 4GB.However it boots with the old CPU T4200.Anyone has suggestion to resolve this problem.
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2answers
52 views

Real CPU usage - Task Manager

I have question about CPU usage, why does the Windows Task Manager shows me different CPU usage? I tried make some stress test where it showed me CPU usage 100%, but Task Manager shows only 65% usage. ...
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0answers
14 views

PC wont boot when graphics card plugged in

I recently got new motherboard/cpu/ram, though the PC wont boot at all when the gfx card is plugged in. Gfx card is still old and quite outdated so I was thinking maybe it is imcompatible? PC ...
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0answers
25 views

Computer fully restarts with no POST under any significant load

Specs: i5 3570k GTX 670 Corsair HX750 PSU I built my desktop a few years back and it has worked like a charm up until the past week. Whenever I try to play any game, besides non-intensive stuff like ...
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0answers
105 views

Win 10 64 bit update requirements 64Bit cpu (CMPXCHG16b, PrefetchW and LAHF/SAHF)

So I'm currently trying to find out wheter or not it would be a good idea to update my slightly dated notebook (win7, 64 bit) to windows 10 and the problem I have encountered is this: Microsoft states ...
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0answers
27 views

VT-X prevents boot

this is what happened. I was trying to run virtual box on my computer, but it gave me the error message, that I needed to activate VT-X. So, I booted into the bios and set the option for Intel ...
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0answers
19 views

Sudden shut down & no boot after

My PC worked fine until a few days ago when it started to suddenly shut down after a few minutes of playing some games. Also, when I was trying to power on, the aux fans ran but the cpu would not ...
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1answer
43 views

Laptop shutting down automatically - BIOS overheating [closed]

My 4 year old laptop shuts down automatically with an error message 'The System has prevented from Bios overheating' when try to restart the laptop. It happens often and it was working for at least ...
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1answer
32 views

Why is my motherboard's CPU temperature inconsistent with the individual core temperatures? [duplicate]

This image demonstrates what I'm talking about: The motherboard's CPU temperature is in green. The individual cores' temperatures are in red. I've tested the temperatures in three different ...
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1answer
54 views

What is the difference between CPU and Core temperatures? [duplicate]

While trying to figure out why the performance of my machine has suddenly severely degraded, I noticed that although CPU temperature is being reported as 45C while idle, the temperatures of all 6 ...
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0answers
29 views

Upgrading into an i7 from a laptop with i3

I have an HP Pavilion g7 which, for all practical purposes, operates as a desktop rather than a laptop. It never leaves my home office. I'm in need of some hardware upgrades yet I'm on a tight budget ...
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33 views

Black screen for about 20 minutes between boot screen and logon screen?

My specs are: Windows 7 Ultimate, 16 Gb ram, Processor: Intel(R) Core(TM) i5-2300 CPU @ 2.80GHz, 2801 Mhz, 4 Core(s), 4 Logical Processor(s), and the drive with my OS on it is an SSD. A problem I ...
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0answers
15 views

How to Match Memory to FSB (pre IMC)

I have the following hardware: P35-DS3L supporting FSB 333/266/200 Mhz, quad-pumped. Four dual-channel slots. E2180 currently @ 2.00Ghz (200.00x10) I plan to raise the FSB to 266.66. This is my ...
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0answers
41 views

CPU maxes out at 100% when I use 2nd RAM slot! why?

I recently re-installed windows and went from a 32 bit install of Windows 7 Ultimate to a 64 bit install of Windows 7 Ultimate. Computer ran fine before the re-install but I just wanted to switch to ...
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0answers
63 views

Get Windows 10 icon on the taskbar without NX support?

I have an old Pentium 4 PC running Windows 7. The CPU doesn't support NX. I have seen some methods for disabling the NX check given a Windows 8, 8.1 or 10 Technical Preview ISO. But I want to get ...
2
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0answers
17 views

QEMU CPU Emulation Capability

Is it possible to emulate any/all Sandy Bridge CPUs using QEMu? Specifically, I am trying to get something akin to an Intel Xeon E5-26xx (a SandyBridge processor) running on hardware employing a ...
3
votes
1answer
47 views

Vagrant + Virtualbox CPU utilization very low in Windows 8.1

I am running a Virtualbox VM that runs Ubuntu 14.04 LTS provisioned by Vagrant. There are 2 physical cores in my computer (Dell Inspiron Laptop), which I assigned both of them to the VM (this I ...
0
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0answers
28 views

Unlock BIOS config

I have ASUS x101h EEEPC and I want to overclock CPU, but BIOS clock settings are locked. Is there a way to unlock BIOS or update BIOS which have those options unlocked? CPU is Intel Atom N435
2
votes
2answers
47 views

How does airflow work inside ATX PSUs with 12cm fans? [closed]

It sucks in air from inside the case but how does the heated air get out of the PSU? There's holes at the back but we all know that hot air doesn't travel sideways unless forced. Also in my case the ...
0
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2answers
137 views

Unsupported C.P.U for windows 10

I have Intel i5-4200u . Earlier the windows get application showed that my laptop can run windows 10. But it performed another check on 13-6-15 and it now shows that my c.p.u is not supported.Is this ...
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5answers
68 views

Confused about GPU having hundreds of processors inside it

I just started learning about parallel programming course on Udacity and already I am kind of confused. Here at this video segment: https://youtu.be/gbj0oauFFI8?t=52s We're told that the average GPU ...
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votes
1answer
47 views

Is my computer fast enough to play league of legends? [closed]

Do you guys think that a Intel Celeron E1200 Dual-Core Processor, with 2 gigabytes of ram is fast enough to play league of legends, provided that the rest of the system is good enough.
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2answers
60 views

How to find what's causing my pc to drag at certain times

I'm a software developer working on a Windows 7 machine with an i5 processor and 16GB of RAM. Most of the time the machine runs just fine. However, when I boot up in the morning, within 10 minutes of ...
0
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1answer
36 views

High CPU/MOBO temperature even after cleaning and reinstalling

Even after dissembling my laptop and cleaning it, the temp of my CPU and Motherboard hangs around 41+ degrees Celsius while idle and no apps running. It used to be much lower and my laptop gets really ...
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0answers
23 views

Computer doesn't start when 12V CPU power plugged in

Configuration (troubleshooting): Board: Socket AM3+ Gigabyte GA-78LMT-S2PT CPU: AMD FX4300 PSU: 500W Peak Other components: GPU: ASUS Nvidia GTX960 Mem: 12GB (8+4) 1333 HDD: Seagate 1TB SATA ...
0
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1answer
69 views

High CPU - NT Kernel & System, Windows 8.1 Pro 64-bit

I have 64-bit Windows 8.1 Pro, Lenovo X220. All updates are installed (both Windows and from Lenovo Solution Center). Every time my computer starts, one of the processes uses 25% of CPU (until ...