do I have USB 1 or 2?

[cgowland]

I don't know how to tell if my laptop's USB controller is 1 or 2. Is there a way to check.

Background: Dell Inspirion, device mgr says it is an Intel 82801BA/BAM USB Universal Host Controller 2442, driver: date 3/24/2000, version 2.30.17.0 - so is that version number the answer?

[ris]

the version number is probably only the driver reference number and may not be directly useful if the driver bundles usb 1.1 and usb 2.0 together.

what model inspiron do you have?

welcome to hwc, cgowland

[cgowland]

Inspirion 8000 purchased in June 2001. I'm pretty sure now that I do have USB 2. Just installed a new Iomega CDR and it burned at the 40x rate which is what it quoted on the box if it was connected via a USB 2, vs only 4x if USB 1.1. I just didn't realize it was.

[vmail]

Inspiron 8500 series.

System Processors


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Intel® Pentium® 4 processors - M at 1.9 Ghz, 2.0 Ghz 2.2 GHz, 2.4 GHz, 2.5 GHz and 2.6 GHz

512 KB Pipeline Burst L2 cache

400 MHz front side bus frequency

Intel® 845MP AGPSet Chipset with 4X AGP



Memory


--------------------------------------------------------------------------------

256 MB DDR RAM (266MHz) standard, upgradeable to 2GB maximum

DDR RAM configurations include one of 128, 256, 512, 768, 1024, 1280, 1536 and 2048MB

2 x SoDIMM sockets



Modular Media Bays


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One modular optical bay for CD-ROM, CD-RW, DVD-ROM or 1.44MB Floppy Disk Drive (details in storage section below)



I/O Ports


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IEEE 1394 integrated port (Fire Wire)

9-pin serial connector

25-hole pin parallel connector

Serial infrared communications port (lrDA-1.1 compliant)

Audio jacks: headphones out, speakers out, microphone in

15-pin monitor connector

2-USB 2.0 (Universal Serial Bus) compliant 4-pin connectors

S-Video - 7pin mini DIN port for TV-out

2-pin AC adapter

Kensington Lock socket

RJ11 and RJ45 connector



Ask dell they will know

[uart]

Just installed a new Iomega CDR and it burned at the 40x rate

Yes that's correct, it has to be USB2 then. I had an external (usb) burner and it could only write at 4x from USB 1.1 (it could read at about 7x so that was the data limit). On USB2 it could both read and write at 48x.

[vmail]

my pc was set to usb 1.1, ive changed it to 2.0 in the bios, u mite see fullspeed and hispeed there

[vmail]

Originally posted by uart


Yes that's correct, it has to be USB2 then. I had an external (usb) burner and it could only write at 4x from USB 1.1 (it could read at about 7x so that was the data limit). On USB2 it could both read and write at 48x.

most CDRW (unbranded or cheap) can only be written at 4x

[cgowland]

thanks all. now i'm off to the store to buy various USB compatible devices to use up that thruput!

[uart]

most CDRW (unbranded or cheap) can only be written at 4x

?????, I just said it could both read and write at 48x on a USB2 port. The 4x write (and 7x read) was due to the data rate limit of USB1.1. End of story!

[Shinma]

Following link may be of interest, LINK