For Geeks that Like to Twiddle
Posts tagged maximum speed
Ethernet Cable – Choosing the Right Cable
274 days
If you are setting up a home network then you will likely need to use cabling. Determining which type of cable you need requires you to spend a little time considering the capacity you need for your particular network. for instance, a home that work will generally a lower capacity need than a business. the number of computers that are transferring data, video or audio file simultaneously will give you an idea of how high a capacity you have. It is generally a good idea to overestimate your needs rather than to experience the frustration later on of finding out that you estimated too low.
Spending a little time understanding the specifications of the different piece of equipment that you intend to use will give you a good idea of the speed you need. It is a good idea to keep in mind that your network will operate at a maximum speed of your slowest device. you will also need to measure the distance for your individual network. most experts recommend that Cat-6 cables utilize a repeater if they are going to cover a distance of more than 100 m at gigabit speeds.
Your budget may also be a concern when it comes to purchasing an Ethernet cable. for relatively short distances, the cost of Ethernet cable may not be that great if you’re choosing between Cat-5e and Cat-6. if, on the other hand, you are going to be running Ethernet cable over extended distances then the cost of the different types of Ethernet cable can cause your costs to go up substantially. As with capacity, you will want to overestimate the amount of Ethernet cable that you need rather than trying to get exactly the right amount only to find that you end up just short.
When purchasing there are also a couple of other things to keep in mind. if your cables are going to be exposed then you may want to try to find ones that will match the colour of the wall or floor. It is also a good idea to double check to make sure that the network equipment you are using is designed for Ethernet cables rather than FireWire or USB connections. Although you should overestimate the length of the cable that you need, exceptionally long cables can result in a decrease in performance. Unfortunately, short cables often have a higher per meter cost.
Some Factors to Consider While Buying a Hard Disk Drive
334 days
by TwiddleGeek
in floppy Drives
Hard disk drives have become an indispensable element of each and every computer nowadays. it holds all your data, the operating system, provides virtual memory to release burden off of the RAM and lot more
We have come a long way since the days of Floppy disks and today, HDD have the ability to store terabytes of information on them. and they are all affordable too Hard disk drives are often referred to as Data Center of PCs.
The two main varieties of HDD on the market – SATA (serial ATA) and SCSI (Small Computer system Interface)
Some factors to be considered while buying a HDD:
Form Factor:
Just like the Form Factor for motherboard, HDD form factor is important so that it fits properly into your case. Make sure you check the size of your HDD and the slot where it fits in your PC or laptops.
UDMA speed rating:
UDMA speed refers to the maximum speed of data exchange between your system memory and the hard disk drive buffer. all you have to do is to check your motherboard’s maximum data transfer speed and then find a HDD whose speed rating matches it.
Buffer:
This section of the HDD is used as a high speed memory reserve area which temporarily holds small amount of data while it is waiting to be read from or written to the drive. Generally, higher the buffer the better. 8MB should suffice.
HDD platter speeds (measured in RPM):
This is another performance related parameter. Hard disk drives nowadays run at high RPM. Common speeds of 5400 and 7200 RPM are available. Higher RPM translates to higher performance and faster data transfer. there are even 10,000 RPM HDDs available out there
Netgear Powerline Nano 500 Ethernet-over-mains adaptor • reghardware
388 days
by TwiddleGeek
in round Cables
Review When a vendor puts a colour-coded performance guide LED onto a powerline Ethernet product and admits that “best” throughput – the light is green, natch – is “greater than 80Mbps”, you immediately realise how big a gap lies between the technology’s reach and its grasp.
Netgear’s latest adaptor, the XAV5101 500 Nano, is labelled “Powerline AV500 Gigabit”, which will suggest to some that it can do 1Gbps. or maybe that 500 tells you it’s capable of 500Mbps.
The Nano 500 is much more compact than past Powerline adaptors
To clarify, the world “Gigabit” is there because the Nano has a 10/100/1000Mbps Ethernet port on board. But, as the packaging reveals, the device has a maximum speed of 500Mbps. In the cheeky parlance of powerline networking kit makers, that speed adds the uplink and downlink speeds together – 250Mbps each way, in other words.
Either way, it’s still a much bigger number than 80Mbps.
The Nano is compliant with the 200Mbps HomePlug AV specification which is part of the IEEE 1901 powerline standard, and it’s this the delivers the higher speed. Bottom line: it’ll work with most of the powerline adaptors out there, but not older HomePlug 1.0 devices.
The lower two LEDs show the Powerline link speed grade, and whether the device is connected to a local Ethernet port
The Nano’s other selling point, beyond speed, is its size. It’s rather smaller than many a powerline adaptor being not so very much larger than a mobile phone power brick. so even though the Ethernet adaptor faces downward, there’s plenty of room to get the cable in and out if you’re using the Nano in a low-mounted power sockets.
It’s a lot smaller than last year’s XAV5001 adaptor – it’s 67 per cent of the latter’s volume – which offered the same spec. But it too sports a data encryption button which gives you two minutes to press the equivalent button on all your other adaptors, at which point they’ll jointly negotiate and share a 128-bit AES encryption key.
Netgear new and old: XAV5001 and XAV5101 back to back and to scale
Next page: Wire oh wire
Is there any Modern AMD Quad-Core Opteron Four-Proc Motherboard?
668 days
by TwiddleGeek
in opteron
I can't find any modern motherboard allowing for four processors other than the Tyan Thunder, but the RAM for those has a maximum speed of 667 MHz, (whatever the hell RAM speed is). I am looking for a newer one, preferably that takes DDR3 memory with a speed of at least 1033 MHz. If possible, I would also like it to have an on-board FireWire 800 and 400, an HD sound card, and an Accelerated Graphics Port so I can hand-pick a great graphics card!
newegg.com/Product/Product.as…
I don't think this is what you want but it will work
NewEgg has 3 Quad Socket F mobo's, all Tyan's. None of them support DDR3. The one I linked supports DDR2-800 memory, no onboard sound, no fire wire but has 2 PCIe x16 slots.
I am not sure what you are trying to build here, but it is looking like oil and water. To get a Quad CPU mobo you are looking at server mobo which isn't built to be a high end desktop or gamer. If you are thinking a super game machine, throwing 16 cores at a game isn't going to help much when most games aren't written to take advantage of 2 cores yet.