USB 1.1 Vs USB 2
I'm Just A Lawnmower
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USB 1.1 Vs USB 2
Apologies if this has been covered before. My PC has several USB ports at the back. They are all, I believe, USB 1.1. If I were to purchase an item labeled as having a USB 2 connection, would it work?
Also, is it a major deal 'converting' my old USB 1.1 ports to new USB 2s to benefit from the higher data transfer speeds?
Thanks in advance...
Also, is it a major deal 'converting' my old USB 1.1 ports to new USB 2s to benefit from the higher data transfer speeds?
Thanks in advance...
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Yes they would as USB 2 is backwards compatible with USB 1.1. You will however be stuck with 1.1 speeds unless you upgrade, so paying a premium for a USB 2 peripheral is not worth it if you can get the same item cheaper using 1.1.
Easy to upgrade your PC by buying a USB 2 PCI card.
hth
Easy to upgrade your PC by buying a USB 2 PCI card.
hth
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The USB 2.0 device should work with USB 1.1 (at slower speeds) if it is marked as being backwards compatible, as far as I know. Some devices can be picky and usually state specifically on the back that they will not work with USB1.1 (usually high bandwidth devices like video capture units and the like).
Normally you can't convert USB1.1 ports to USB 2.0, but you can buy a PCI card with USB2.0 compatibility relatively cheaply. Such cards may come with a firewire socket as well.
Normally you can't convert USB1.1 ports to USB 2.0, but you can buy a PCI card with USB2.0 compatibility relatively cheaply. Such cards may come with a firewire socket as well.
I'm Just A Lawnmower
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Thanks guys
The item I'm considering buying is a multi-memory card reader. Most of these are advertised as 2.0 products and whilst I've seen older 1.1 versions, the price difference is negligable.
The item I'm considering buying is a multi-memory card reader. Most of these are advertised as 2.0 products and whilst I've seen older 1.1 versions, the price difference is negligable.
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If it's integrated in your motherboard then in device Manager for 1.1 all entries will be 'Universal Host Controller.' If it's USB 2 at least one of the entries will be 'Enhanced Host Controller.'
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Sorry to hijack...
One of my colleagues has just brought a USB 2 PCI card for his PC. He says that the card has two new usb ports at the back + one inside the case. As his computer currently has two USB ports on the front of the case he wants to connect these ports to the new PCI card. He reckons that the internal USB port is for this purpose.
The problem is that he has not got a cable that can link between the old USB ports which link straight to the motherboard and the internal USB socket. Any idea where in the UK he can source one of these cables?
He maybe barking up the wrong tree so please point that out if obvious and I'll set him straight.
Cheers
DeepC
One of my colleagues has just brought a USB 2 PCI card for his PC. He says that the card has two new usb ports at the back + one inside the case. As his computer currently has two USB ports on the front of the case he wants to connect these ports to the new PCI card. He reckons that the internal USB port is for this purpose.
The problem is that he has not got a cable that can link between the old USB ports which link straight to the motherboard and the internal USB socket. Any idea where in the UK he can source one of these cables?
He maybe barking up the wrong tree so please point that out if obvious and I'll set him straight.
Cheers
DeepC
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Goates,
It's identical to the USB sockets on the outside of the card. I've just had a chat with him and he thinks that the old ports at the front of the case have a 'male' USB connector on the back. So essentially he is looking for a 40cm long USB extension cable.
Again, Does this sound feasible?
For info the PC is a HP Pavillion 7946 about 2 yrs old.
Thanks
DeepC
It's identical to the USB sockets on the outside of the card. I've just had a chat with him and he thinks that the old ports at the front of the case have a 'male' USB connector on the back. So essentially he is looking for a 40cm long USB extension cable.
Again, Does this sound feasible?
For info the PC is a HP Pavillion 7946 about 2 yrs old.
Thanks
DeepC
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DeepC,
Look for something like this:
http://www.performance-pcs.com/catal...3ed0c81c7b01a7
After that, your friend would have to check the computer manual to see if they tell you the pin configuration for the front panel connections.
goates
Look for something like this:
http://www.performance-pcs.com/catal...3ed0c81c7b01a7
After that, your friend would have to check the computer manual to see if they tell you the pin configuration for the front panel connections.
goates
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I had a look at the device manager but it just lists the devices and not what type they are just that they are USB root Hubs.
Where would it say more info - had a look in properties but no joy.
Where would it say more info - had a look in properties but no joy.
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USB 1.1 is much slower than USB 2. 480Mbps compared to 12Mbps. USB 2 may provide more power too, but usually USB 2 device will work in the older ports at the slower speed.
Devices like the iPod want the higher speed, otherwise it could take you a couple of days to load up your iPod. If you only have USB 1.1, you might want to look at getting a USB 2 PCI card.
loki
Devices like the iPod want the higher speed, otherwise it could take you a couple of days to load up your iPod. If you only have USB 1.1, you might want to look at getting a USB 2 PCI card.
loki
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Thanks for the link but mine say:
SiS 7001 PCI to USB Open Host Controller (Three of them)
SiS PCI to USB Enhanced Host Controller (one of them)
USB Root Hub (four of them)
What does this mean - I only have two USB ports.
SiS 7001 PCI to USB Open Host Controller (Three of them)
SiS PCI to USB Enhanced Host Controller (one of them)
USB Root Hub (four of them)
What does this mean - I only have two USB ports.
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If it's USB 2 at least one of the entries will be 'Enhanced Host Controller.'
SiS PCI to USB Enhanced Host Controller (one of them)
All 4 will be USB 2 because it only needs one Enhanced controller.
Last edited by Toxteth O'Grady; 14th Jan 2005 at 15:51.
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IPOD
Tone,
I recently got a 4th gen IPOD and it works fine with USB 1.1 on my laptop. Granted it 'aint fast, but then neither is ITUNES for ripping CD's.... It also charged through the USB OK.
I recently got a 4th gen IPOD and it works fine with USB 1.1 on my laptop. Granted it 'aint fast, but then neither is ITUNES for ripping CD's.... It also charged through the USB OK.