VOGONS


First post, by matze79

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Hi,

i tried a PCIe Bridge with my Athlon XP and it works flawless 😀
anyone else experimented with such Hardware yet ?
i waiting for x16 Adapter to get more powerful cards to work.
As PCI can not deliver power required for stronger HW.

System is Athlon XP 2800+, Nforce2, 1Gb Dual Channel DDR1 400, Shuttle PC Cube.

The Goal is to add a less power hungry but powerful PCIe Card in the Future to my Athlon XP.
Less heat, enough Power for XP Games.

I used PCIe x1 Card for testing purposes, as i had the Asus Neon 8400GS laying Around.

i also tried with VIA C7 with not so good results.
The CN700 Chipset has PCI Problems and therefore DMA Problems with PCIe Card connected..
Windows XP goes Blackscreen with the C7 after Driver is installed and on Linux Dmesg reveals whats the Problem.

[ 145.254382] nouveau 0000:02:00.0: fifo: DMA_PUSHER - ch 4 [Xorg[643]] get 0001a336fc put 0001a33714 ib_get 00000060 ib_put 00000247 state 800075f1 (err: INVALID_CMD) push 00406040

This also is a Option for Tualatin Boards with no AGP 😀

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Reply 1 of 8, by The Serpent Rider

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As PCI can not deliver power required for stronger HW.

Cards with external power probably will be fine. Not all though, some will try to draw 75 watts from the slot, as specified.

This also is a Option for Tualatin Boards with no AGP

PCI bus without significant overclocking is horrible though.

All the other kids, with the pumped up kicks
You'd better run, better run, faster than my blaster

Reply 2 of 8, by matze79

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PCI 66Mhz.. works fine

better then ATI Rage XL at least 😁

https://dosreloaded.de - The German Retro DOS PC Community
https://www.retroianer.de - under constructing since ever

Co2 - for a endless Summer

Reply 3 of 8, by cyclone3d

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matze79 wrote on 2020-02-11, 20:20:

PCI 66Mhz.. works fine

better then ATI Rage XL at least 😁

Yep, all those PCIe <-> PCI adapter cards all use the same bridge chip which supports 66Mhz PCI operation.

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Reply 4 of 8, by swaaye

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Does 66 MHz PCI actually happen on a desktop board?

PCI as a graphics bottleneck is an interesting question. If bus transfers become significant it will get ugly, but most old games might do quite well. You have a lot of local memory so textures should all be on the card.

Reply 5 of 8, by SPBHM

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cyclone3d wrote on 2020-02-11, 21:50:

Yep, all those PCIe <-> PCI adapter cards all use the same bridge chip which supports 66Mhz PCI operation.

I remember people trying this (well the opposite) to get Voodoo 4/5 PCI to operate as 66MHz on a PCIE adapter and most adapters didn't work, even if the chip supported it the adapters were mostly not built for it, but the better ones did.

but it would be interesting to see better cards,

Reply 6 of 8, by The Serpent Rider

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Does 66 MHz PCI actually happen on a desktop board?

Technically, yes. ASUS were making wide range of fancy "workstation" motherboards. Although not in the Socket A era.

If bus transfers become significant it will get ugly, but most old games might do quite well.

Even Quake 3 is severely bottlenecked by PCI bus. Later titles with increased geometry are borderline playable.

All the other kids, with the pumped up kicks
You'd better run, better run, faster than my blaster

Reply 7 of 8, by BinaryDemon

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I can't imagine a faster card would perform much better, there's a reason modern cards aren't made for PCI. I guess you might save a little money since PCI versions of Geforce 8400 / GT430 are tough to find and cost a premium. A fast AGP card would match that system fine.

Check out DOSBox Distro:

https://sites.google.com/site/dosboxdistro/ [*]

a lightweight Linux distro (tinycore) which boots off a usb flash drive and goes straight to DOSBox.

Make your dos retrogaming experience portable!

Reply 8 of 8, by matze79

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We also tested Xpress Card to PCIe Adapter with Radeon R9 some months ago and its a huge improvment over OnBoard Video, i don`t expect it much slower 😳

https://dosreloaded.de - The German Retro DOS PC Community
https://www.retroianer.de - under constructing since ever

Co2 - for a endless Summer