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Will this USB 2.0 pcie card works on late 05 PMG5 Quad?
- Thread starter AdiPlayZ
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There used to be something called OHCI for common USB cards that worked between Mac and windows without drivers.
I dont know if it ever applied to USB2 cards.
My initial guess is NO. Because so many just don’t work with PowerPC. It’s so hard to find any site that mentions PPC compatibility anymore.
I dont know if it ever applied to USB2 cards.
My initial guess is NO. Because so many just don’t work with PowerPC. It’s so hard to find any site that mentions PPC compatibility anymore.
It looks like a PCI card and my late 2005 Powermac G5 Dual only has PCI-Express slots, so I doubt this will work on your machine. You are better off getting a PCI-Express USB 3.0 card with a NEC/Renesas chip or perhaps something from Sonnet.
Yeah, this card is incompatible with your Quad G5. Look for a PCIe (PCI-Express) card.
As for plug-n-play, I’m fairly certain OHCI is applicable for USB2 cards, as I use a PCI-X USB2/FW400 card in my DP G5. If in doubt, it’s worth checking to make sure the controller chipset is by NEC (other controllers, such as ALI, may or may not be usable) — something like this or this, for example.
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Google the
Antaira USB-68001
and see what you can come up with.
It’s the one that OWC used to sell. It’s PCI-e.
Antaira USB-68001
and see what you can come up with.
It’s the one that OWC used to sell. It’s PCI-e.
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The card in your post is still PCI regardless of the chipset used, so it is incompatible. You need to look at a PCIe card.
If you want to run Mac OS X on your PowerMac, you need to look for a USB 2.0 card with a PCIe connector. Preferably with an NEC or TI chip. PCIe 3.0 cards use different controller chips and all of those require drivers, which do not exist in Leopard or for PPC at all. I don't know whether USB 3.0 cards are backwards compatible so that they will work in PPC Macs as USB 2.0 cards; that is a gamble you are free to take yourself.
Something like this obsolete Belkin card is what you should be looking for.
Your problem is going to be that USB 2.0 is obsolete for new hardware and the only new card still being sold is from StarTech and has a ViA chip, which is probably best avoided.
You will probably have to look at second hand shops locally or eBay and hope that something suitable turns up. Forget AliExpress or the Chinese online dealers. They only deal in newer technology almost none of which will work with vintage Apple hardware.
This one claims to be compatible: https://www.ebay.co.uk/itm/4-Port-H...PowerMac-G5-Late-05-All-Mac-Pro-/262496715609 but it is rather expensive and I cannot see what the chipset is from the blurred picture.
The only one that is compatible with your PowerMac G5 Quad that has PCIe slots is to buy a new "CLONE" version of a working natively supported card from Hong Kong made by Nanotech. This card will work with your Quad and natively supported by Tiger, Leopard on Late G5 and up to High Sierra on the Mac Pro.
They also have other cards for various PowerMac G5 machines to expand the storage and upgrade video. HongKong should be closer to Malaysia if that's where you are residing at? Hope this helps.
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They also have other cards for various PowerMac G5 machines to expand the storage and upgrade video. HongKong should be closer to Malaysia if that's where you are residing at? Hope this helps.
That's the one I linked to in my post. Can you tell what the chipset is on that? It doesn't appear to be either an NEC or a TI.
I believe it is a clone of a Belkin card that you linked to in your post, but with a slight mod to work with Mac Pro as well so they can sell to both late G5 and Mac Pro owners. I'm not sure about the chipset though; but it is something special they made because it is rare to see a PCIe card work on both G5 and Mac Pro from Tiger all the way to High Sierra natively. Usually some cards like the 1022AM from HighPoint works only from Snow Leopard to Sierra, but it requires a separate driver.
It is made by MosChip, like this one: https://www.ebay.com/itm/USB-2-0-to...B2-0-PCI-express-Adapter-Moschip/223262224944 .
Reviving this old thread. I'm wondering if the updated Sonnet Allegro card 3.x PCIe card is compatible with the Late 2005 PowerMac G5 Dual/Quad core? According to the specs, it says it's Mac compatible but only lists the Mac Pro.
Has anyone tried using one of these?
Has anyone tried using one of these?
Allegro Type A USB 3.2 | 3.0 PCIe 4-Port PCIe Card (Mac and Windows Compatible)
USB 3.0 Runs rings around its 2.0 Predecessor - it's up to ten times faster. If you've got a mac pro or pc with pcie slots, you can upgrade your computer with this super-speedy protocol. It's just what you need for video and audio production, or any task that's data-intensive. Sonnet's allegro US...
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There are no USB 3.x (XHCI) drivers for Power Mac or Mac OS X 10.5 or 10.4.
There's a third party Mac OS X driver "GenericUSBXHCI" with source code but it might take a lot of work to port it to 10.5 or 10.4.
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Thanks. I'd also assume that there is no way for the card to "downgrade" from 3.x > 2.0 ? The drivers are needed regardless, correct?
Correct. USB 3.x, USB 2.0, and USB 1.1 are all handled by the XHCI controller of the USB 3.x card so they need an XHCI driver. There is no EHCI (USB 2.0) or OHCI/UHCI (USB 1.1) controller on XHCI cards.
UHCI controllers (for USB 1.1) don't work in Mac OS 9 or Open Firmware (but may work in Mac OS X), so OHCI is preferred. USB 2.0 controllers usually have both OHCI and EHCI. A USB 2.0 device may boot as if connected to OHCI and will switch to EHCI automatically when the OS loads its EHCI driver.
Apple dropped support for USB OHCI and UHCI in recent versions of macOS (since Ventura).
Thanks for the technical explanation. I do recall now when Apple dropped support for USB 1.x from Monterey > Ventura, which required the use of a USB 2.0 keyboard/mouse or a USB 2.0 hub to be able to install Ventura on a Mac Pro 4,1/5,1 using OCLP.
Yes. Connecting a USB 2.0 device such as a USB 2.0 hub to a USB 2.0 port forces the USB controller to be EHCI instead of OHCI (somehow the port can be used by either controller - there's a switch to change which controller gets used). Any USB 1.1 device connected to such a hub (or USB 2.0 keyboard which has a built in USB 2.0 hub) will allow the USB 1.1 device to be used from EHCI.