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2answers
57 views

Windows 7: How do I find missing drivers?

I installed windows 7 32 bit for a friend, his laptop is hp 2000-2d07ee. I installed all the drivers I could find here. I ran windows update, I searched in device manager for these drivers couldn't ...
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0answers
5 views

How do I test a bus connection for functionality?

How can I determine if I have a good profibus connection? I want to be able to test my hard wire connection to make sure that isn't the problem. Ideally I would like to be able to test it at up to ...
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0answers
33 views

Alter PCIe speed and bandwidth

So I know the basics about lspci and setpci (needs to be run as root, etc), but I'm looking for more information. I want to alter the speed and bandwidth of my PCIe card's bus. The reason being, ...
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1answer
38 views

Do certain laptops, say Macbooks, have significantly better hardware buses than others?

Many modern laptops do not allow one to change the memory banks, as they are welded in, especially ultrabooks and Macbooks seem to have this 'feature'. I've heard that sometimes this idea is ...
2
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1answer
64 views

What does PCI (not PCI-E) bus speed of 66MHz really mean?

According to this article , the bus is the circuit that connects the motherboard . The faster the speed of the bus , the quicker data can be transferred . Bus speed is measured in MHz (Mega Hertz) and ...
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0answers
15 views

Shortcut method to find the front side bus and memory bus speed of your computer [duplicate]

I can easily find out the RAM, Processing Speed of my Windows computer by clicking the Properties section of Computer. Is there any shortcut method similar to the above to find the front side bus ...
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2answers
51 views

Are all peripherals directly connected to system bus?

System bus has control, address and data buses, as we can see in this picture I think the front-side bus and memory bus is directly on the system bus, but what about the PCIExpress and PCI buses, ...
3
votes
3answers
205 views

What's the difference between a hardware register and a memory-mapped register?

This has been puzzling, so I'll lay it all out here. Apparently, through MMIO, you can access external devices using a certain memory-mapped address, which would then be re-routed to that device ...
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0answers
59 views

What is in-service expansion in token passing bus network?

I was reading about Token Ring network and it said "in-service expansion is possible in a token passing bus network". What does it mean?
2
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2answers
247 views

How do device driver instructions program the GPU?

Say I am using a computer, any typical modern computer more or less. A device driver is responsible for everything I see on my screen, including right as I type this the screen is updated(this is, of ...
2
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3answers
4k views

Finding hardware information on linux without lspci

I have an ARM device running ArchLinux. The device doesn't appear to have any PCI bus, even though it has USB. [root@alarm ~]# lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub ...
2
votes
1answer
372 views

Identifying a small IDE connector

I'm in the possession of the GENE-9455: At the top left corner there is an IDE connector, however, this is not a normal IDE connector, it's a smaller one. I need to find a cable for this connector. ...
1
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1answer
78 views

Is a multiplexed system/address bus slower? [closed]

When a address bus is multiplexed it typically send addresses in two consecutive parts. Thus for a 32 bit bus one only need 16 wires. Typically, (if I get this correct): 4 bit bus: ...
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0answers
75 views

64x Not working, despite my desperate tries

So this is really weird, and extremely annoying. I've tried to install a 64x-version of some Linux distributions, such as Linux Mint, Ubuntu, Xubuntu, etc. But none has been successful. I am able to ...
4
votes
2answers
447 views

When I connect 4 USB drives to my PC at the same time, does each slot have 480 Mbit/s?

When I connect 4 USB drives to the 4 available slots on a PC at the same time, does each slot have theoretical 480 Mbit/s or will it be quartered and every port will only have 120 Mbit/s? Does this ...
0
votes
1answer
189 views

Slower cpu (pstate) = slower ram performance?

I noticed that if I lower my CPU clock speed via P-states/SpeedStep, my RAM slows down. However, through CPU-Z, my HT link, which is what connects my CPU to the memory, is still running at the same ...
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0answers
119 views

Understanding Bus Architecture Terminology

I've read several books which talked about bus architectures. Each one uses a myriad of terms. Can someone help sort these out for me? system bus external data bus internal data bus front-side bus ...
2
votes
1answer
99 views

What are the frequencies of current in computers' external peripheral cables and internal buses?

From Wikipedia, three different cases of current frequency are discussed along with the types of cables that are suitable for them: An Extra Ordinary electrical cables suffice to carry low ...
1
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1answer
363 views

Meaning of “expansion bus” or “peripheral bus”

From my last post "expansion bus" and "peripheral bus", "expansion bus" or "peripheral bus" are said to be the same concept. My questions here are not the same as those before. ...
3
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2answers
1k views

How is the communication between northbridge and southbridge like?

How is the connection/communication between northbridge and southbridge like? It seems that data must pass from the CPU to the northbridge, and then again over a PCI bus to the southbridge, based on ...
0
votes
1answer
313 views

Are SATA,USB, Ethernet, mouse, keyboard, serial/parallel ports connected to Southbridge via PCI bus?

From Wikipedia: I was wondering how to understand the right-down corner of the picture? Are SATA,USB, Ethernet, mouse, keyboard, and serial/parallel ports connected to Southbridge via PCI bus? In ...
9
votes
4answers
892 views

Trying to understand a picture of computer buses

In this picture from http://en.kioskea.net/contents/pc/bus.php3 that explains the buses in a computer I wonder whether the black line from CPU to South Bridge is also a bus? It is not named in the ...
2
votes
2answers
156 views

Difficult to understand a paragraph about computer bus from Wikipedia [closed]

Following is a paragraph quoted from Wikipedia article about computer bus, except that those questions in bold and in parenthesis are mine: In modern systems the performance difference between the ...