Tagged Questions

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

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27 views

New CPU not working

Just bought a new processor in preparation for Shadow of Mordor. Replaced the CPU and the heat sink and now the computer fans start spinning and then turn off after about a second. I didn't touch ...
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2answers
50 views

Should I buy an aftermarket cooler? [closed]

I need a solution for cooling the i7-4790k. I am worried about the temperature of the CPU core going beyond 95°C (not fahrenheit). Should I buy an aftermarket liquid cooling for my CPU for lowering ...
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1answer
44 views

A process CPU usage doesn't change for different priority

I wrote an infinite loop in python to print No! in the output. while True: print("No!") When I execute it, I see its process (pythonw.exe) in Windows-Task-Manager that uses 60% of the CPU. I ...
0
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1answer
46 views

Are all Socket G2 processors interchangeable?

I've got an HP probook 4540s and I'm looking at upgrades, but I want to know what my options are. Will I be able to use any Socket G2 processor, or am I limited to the ones the laptop ships with?
2
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0answers
34 views

Unexpected overclock frequencies and temperature fluctuations

I have a HP Pavillion dv6-6123cl Entertainment PC with a locked bios. I use a program called K10Stat in order to get around this and overclock anyway. I have AMD A6-3400 APU with Radeon(tm) HD ...
0
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1answer
23 views

Calculate the throughput of a processor in bits per second

Let's say for example you have an 64-bit 3.2 GHz processor with 8 MB of Cache. What is the theoretical and practical throughput as it would write to RAM (assuming there are no RAM bottlenecks)? Thank ...
0
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1answer
47 views

CPU clock and L3 cache for programming

I'm interested in how much different hardware choices affect the following use cases: Programming in Python: lots of heavy mathematical computations using numpy arrays Data Applications in Python ...
-2
votes
1answer
40 views

Need help comparing Laptops with best speed RAM

I am planning to buy Lenovo Yoga 2 11.6 Laptop, but I do not understand The difference between the RAM in comparison. Windows OS. Hard Drive. Thanks, Here is Screenshot. Link to screenshot. ...
2
votes
1answer
49 views

Is it better to have two cores or four logical processors?

My system has two physical cores, and four logical processors. To my understanding this means that I have four CPUs due to Hyperthreading, and work is distributed as evenly as possible. However, I ...
0
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0answers
20 views

Two separate motherboards exhibiting different issues with same CPU

Recently one of my home build computers that the family uses shut down unexpectedly. I tried to reboot it several times, with the first couple it attempted to boot Windows, and the last few it ...
0
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2answers
48 views

How Do I Test a CPU?

I've been trying to repair a friends computer. It's been a trial and error process. Starting with the least expensive fixes. The original problem is that the system would not power up. The PSU Fan ...
0
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2answers
62 views

virtualbox increase cpu cores script wise

1x cpu core is not enough for an SMB filesharing Ubuntu box. How do we poweroff the VM at midnight, increase the cpu cores 1->2, and power on that box (script-wise)? (it's a windows host... but ...
0
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1answer
57 views

How can I find the amount of floating point operations for each Mhz for processor X?

I've decided to buy a certain processor (laptop Intel-Core-i7-4790K 4Ghz-4.4Ghz turbo), but it pains me that I can't tell how many GigaFLOPS(GFLOPS) the processor actually has. I also can't find how ...
0
votes
1answer
90 views

VirtualBox can't create 64-bit VM after reboot

Host: Windows 7, 64 bits. Processor: AMD Phenom II X4 965, quad core, 64 bits Since I upgraded to VirtualBox 4.3.1.16 I am having this issue. After installing the VirtualBox exe I can create 64 bit ...
1
vote
1answer
285 views

Differences between Intel i7 “M” and “U” series

What are differences between 4th-gen i7 M and U processors? I know about: core voltage TDP socket price But is there something more? Some differences like slower cache, reduced instruction set?
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0answers
27 views

Power surges after installing graphics card

Power surges happen a few times a day (I think this is already an alarming rate) when I play games, say The Sims 4. When I play, the computer just reboots then my ASUS Motherboard tells me that it has ...
5
votes
3answers
537 views

Putting i7-4790K under full load causes triggers a hard reset (computer shuts down with no error message)

My computer is crashing when the CPU is put under 100% load, but not when it put under 90% load. The components are: CPU: i7-4790K (not overclocked) Heatsink: Cooler Master Hyper 212 Evo ...
1
vote
1answer
54 views

Where to get accurate cpu temprature readings?

I am trying to read my cpu temprature under full load (After overclocking by 0.3 ghz). For this I have used CPUID HWmonitor, Core Temp and SpeedFan. CoreTemp and HWmonitor seams to show good ...
0
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1answer
52 views

Does the Windows 98 OS/shell use the CPU to write to the framebuffer/display?

I mean does it use the CPU to access MMIO to put pixels on the display without having other hardware (e.g. GPU, etc.) follow-up after it. When Windows 98 boots, it loads an image by whatever program ...
0
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0answers
16 views

What is more important on a cpu? [duplicate]

What should be the criterion upon I should decide whether or not to buy a processor its speed? or the number of cores? meaning should I seek out a processor which is fast but has 2-3 cores or is it ...
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1answer
140 views

Difference between CPU and processor [duplicate]

Is there any difference between the terms 'Central Processing Unit' and 'Processor,' or are the terms interchangeable?
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0answers
162 views

Will my cpu (E7500 core 2 duo) bottleneck r7 260x?

My pc specs are E7500 core 2 duo nvidia 9500 GT 1 GB DDR2 4 GB DDR2 ram I want to upgrade my graphic card and I am choosing between r7 260x and r7 250. I am worried that my system wont be able to ...
1
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0answers
42 views

Should you worry about high voltage and wattage on a non-overclocked computer?

I've been wondering if I should be worried at all about high wattage or voltage on a non-overclocked computer. I say non-overclocked because when I Google search this question or something similar it ...
0
votes
0answers
80 views

How can I limit the speed of the chasis fan on an Asus M5A78L-M LX PLUS?

I was working on an Asus M5A78L-M LX PLUS motherboard and I replaced the chassis fan with something a little bit quieter and with more CFMs. However, once installed, it was very noisy and it was ...
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votes
1answer
20 views

Will this processor be compatible with my PC?

I have an Advent T9508 PC with a Foxconn 45CM motherboard. The processor that the computer came with when we purchased it many years ago was a Core 2 Duo @ 2.2 GHz. I found a Core 2 Duo 3 GHz E8400 ...
1
vote
1answer
91 views

lshw shows wrong CPU count

I have a Samsung NP550P7C laptop with an Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz Under Ubuntu 12.04 32bit, lscpu and /proc/cpuinfo detect 4 CPUs but lshw only shows 2 CPUs Could there be some sort ...
0
votes
0answers
55 views

Is it possible to replace the Surface RT NVIDIA 1.4 GHz Tegra 3 Processor with an Intel i5 or i7?

Tear down difficulty aside, is it possible to simply remove the NVIDIA 1.4 GHz Tegra 3 Processor in a Surface RT and replace it with an Intel i5 or i7? I admit I am not much of a hardware guy ...
0
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0answers
272 views

Very slow computer but low CPU or Memory usage

My computer is very slow. All the programs and Windows itself is slow. But strangely, all the games run without lag. They are not affected somehow. I just reinstalled my computer for the 6th time ...
0
votes
0answers
123 views

Ubuntu 14.04 hangs at “[2.688088] Switched to clocksource tsc” (Intel Pentium 4)

I installed Ubuntu Server 14.04 on a Pentium 4 machine but booting the System hangs at: [2.688088] Switched to clocksource tsc I've tried all the Grub kernel bootoptions listed in this post: Linux ...
0
votes
2answers
50 views

do I get half the CPU speed for a single thread if HT is turned on? [duplicate]

If I have a single 2.6GHz core for example would it mean that with hyperthreading I have only 1.3GHz for a single thread that my app have or is it on demand only if I will use (lets say my app is the ...
0
votes
0answers
32 views

Lag in Windows 8 when playing audio

I ran LatencyMon and these as the following results... CONCLUSION: Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns ...
2
votes
0answers
57 views

system monitor showing 25 ghz cpu speed, could that have any bad effect?

http://i.stack.imgur.com/ZKl0f.jpg I have a water cooled system, but.... I dont hatve that kind of wallet to be able to pull that out. is anyone of you that had this problem?? what I want to know ...
67
votes
9answers
9k views

What's the difference between mobile and desktop processors?

I just read about the new Samsung Galaxy Note Edge having a 2.7GHz quad-core processor and 3gb of Ram. The laptop I bought last year by HP is 4 Gb of ram and 2.3GHz quad-core and my iMac is even ...
0
votes
1answer
136 views

Difference between Instruction, operations and micro-operation (uop) [closed]

I am trying to understand the intricate terms related to performance of processors. Computer performance is measured in FLOPS, which is short for FLOPs per Second. FLOPs itself stands for ...
0
votes
2answers
45 views

Is it bad for a CPU to be running at a high speed for extended periods of time?

I have an Intel Core i7-4770S (3.10 GHz) that can go up to 3.9 GHz in turbo mode. Windows Task Manager can report it going up to about 3.5 GHz when playing certain games and probably goes higher every ...
0
votes
1answer
94 views

Can I use 2400MHz RAM with an Intel Xeon E3-1230V3 processor?

The datasheet for the Intel Xeon E3-1230V3 says it supports a maximum of 32GB DDR3-1333/1600. But isn't the RAM speed dependent on whether the motherboard supports it? I'm thinking of getting this ...
5
votes
2answers
1k views

Are my CPU temperatures too high?

My CPU temperature revolves around 40 - 50 C while idle and it immediately shoots up to 90 C while starting a game as old as AOE II Conquerors. See below the screenshot which I captured using CPU ID ...
0
votes
0answers
32 views

Negative Priority in Top Output

interesting problem: I have four brand new servers with 4, 16-core AMD Opteron 6300 processors that have recently been installed with RHEL 6.2 with the MRG kernel. I'm trying to optimize the servers ...
0
votes
0answers
42 views

My CPU fan is constantly at ~500RPM - LOW SPEED

I have tried setting the RPM in the bios but the only two settings are "Off" and "Slow". My mobo is DP55WG and it is updated. I am using an 212 EVO heatsink + fan and the fan is plugged in the correct ...
1
vote
1answer
46 views

Low performance when charger is plugged in

I got this laptop: Dell Inspiron N5010 with i5 2,40GHz processor, 8GB Memory and a Kingston SSD. 4 months ago my charger`s pin jack has broken, but it was still working. I noticed that the ...
0
votes
1answer
43 views

What is a U2E1 socket?

I have a 2011 MacBook Air running Ubuntu 14.04 and would like to find out the CPU socket through software methods. To do so, I'm running sudo dmidecode -t 4, which yields, among other things, this: ...
0
votes
0answers
34 views

nice has no effect in Linux unless the same shell is used

If I enter in two different root terminals: nice -n 19 burnK7 & and nice -n -19 burnK7 & Then both processes receive about 50% of the available CPU time - not expected and certainly not ...
-1
votes
2answers
147 views

Can you run Mac OSX in Virtual box on an AMD pc? [closed]

I thought about coding a few iOS apps. To do that you need a mac. I have an AMD based pc and I don't want to buy a mac. So I wonder if its possible to run mac OSX in virtual box on an AMD pc. Thanks
0
votes
0answers
36 views

Is it possible to connect multiple output screens to single machine

Suppose i have four screens A,B,C,D connected to single machine. I need to play different video to each screen which control and coordinated by application running on single machine. Problems i am ...
9
votes
2answers
893 views

Why is Google Drive so heavy on my CPU?

As the below screenshot shows, despite the fact that Google drive doesn't appear to be doing anything (it's not syncing any data) it's using over 12% of my CPU (a core i7). The official ...
0
votes
1answer
294 views

Is the Asus Z97 Board integrated Graphics or iGPU, and what is the difference? [duplicate]

I plan to buy an Asus Sabertooth Z97 Mark 1 board, with an Intel Xeon Processor E3-1220 v3 (without graphic). Now I don't know if the Asus board uses an integrated graphics or the graphics from my ...
1
vote
2answers
486 views

Z87 Deluxe edition Won't boot with Core i7-4790K

The new motherboard, of a friend of mine, will not boot with his brand new Core i7-4790K processor. The CPU error LED blinks as soon as we power on the unit. Hadrien
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votes
2answers
41 views

Does this Motherboard support 2 Graphics Cards

hello i've just bought new pc gamer with this motherboard, i've already nvidia geforce gtx750 and i want to add another 3d graphic card, is it possible to support another one ? ps: my power supply is ...
0
votes
2answers
53 views

AMD CPU Temperature

I installed an AMD A8-6600 and the CPU temp seems high. It's running between 60 - 68C in the bios health monitor. I'm using the onboard graphics. That temperature seems too high to me. Is that temp ...
0
votes
1answer
19 views

How can I compare effective power usage of two CPUs / CPU+Mobo+Mem combinations?

I have this server which does mostly file sharing (with the associated storage). No serious number crunching and it isn't the firewall. My current box has a Celeron D processor (Prescott 336 2.8 GHz); ...