CU_AMiGA's Amiga 4000/Pentium PC Hybrid Project - Page 2

rkauer · 11 July 2009, 19:15

OF course an old 486 use less power than a sleightium3 (think 15W versus 60~75W): 3A versus 12~15A!

Secret Vampire · 17 July 2009, 21:43

http://www.bboah.com/index.php?actio...536&artlang=en has to be the holy grail for this type of endeavour, the inline ISA/PCI slots should allow you to install a PICMG SBC, and have active PCI slots for a decent graphics card or 3D accelerator, looks like there's plenty of clearance between the Zorro and PICMG slot too, so you should lose minimal slot space for Zorro expansions.

CU_AMiGA · 18 July 2009, 15:18

Quote:

Originally Posted by Secret Vampire

http://www.bboah.com/index.php?actio...536&artlang=en has to be the holy grail for this type of endeavour, the inline ISA/PCI slots should allow you to install a PICMG SBC, and have active PCI slots for a decent graphics card or 3D accelerator, looks like there's plenty of clearance between the Zorro and PICMG slot too, so you should lose minimal slot space for Zorro expansions.

that is a very good link there SV, and although it has made me jealous lol i think that PICMG SBC would take it a bit too far for me! Wouldnt you lose DOS gaming compatibility? I was thinking of maybe sticking with the Pentium 233MMX and just getting a PCI GFX card to have the best of both worlds, ie DOS and Win95 gaming!

Secret Vampire · 19 July 2009, 14:46

Provided you choose the SBC and graphics card sensibly, DOS gaming shouldn't be an issue. most will work fine on a PCI system, but you might need an ISA soundcard for full compatibility.

I've got a small collection of PICMG boards, and a small 3 slot backplane wedged into an AT case (It doesn't quite line up, as I discovered to the cost of a SCSI card and hard drive after I powered it on after moving house to be greeted with magic smoke), I'd expect at least the pentium pro and socket 7 ones to be fine, but I'm not so sure about the PIII based one.
I'm now thinking that if you had your A4000 tower conversion in a full tower case, there's probably be space inside to mount one of those little backplanes and a second PSU to keep the Amiga and PC sides totally separate but enclosed in the same case. The same could be done by mounting a backplane above the motherboard inside an A2000, and replacing the huge stock PSU with a couple of low profile ATX ones, I think there's enough height on the case to clear the PCI cards and SBC, just.

CU_AMiGA · 17 August 2009, 17:48

Just thought i d add this. I havent really hade much time to do anything yet that pushes this or makes real use of the PC side yet. But thought i d note the mysterious Picasso IV "flickering dot" bug that alexh found hilarious has gone (i think i changed the way i installed the Picasso 96 software or something).

midway · 23 February 2022, 09:56

Awesome project!

I tried setting one up in a 4000T but the board doesnt start only the cpu fan turns. Its a pentium mmx 233, the same board you have. Did you have to recap it?

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11 July 2009, 19:15	#21
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	OF course an old 486 use less power than a sleightium3 (think 15W versus 60~75W): 3A versus 12~15A!

17 July 2009, 21:43	#22
Secret Vampire Registered User Join Date: Jul 2006 Location: Birmingham UK Age: 42 Posts: 214	http://www.bboah.com/index.php?actio...536&artlang=en has to be the holy grail for this type of endeavour, the inline ISA/PCI slots should allow you to install a PICMG SBC, and have active PCI slots for a decent graphics card or 3D accelerator, looks like there's plenty of clearance between the Zorro and PICMG slot too, so you should lose minimal slot space for Zorro expansions.

19 July 2009, 14:46	#24
Secret Vampire Registered User Join Date: Jul 2006 Location: Birmingham UK Age: 42 Posts: 214	Provided you choose the SBC and graphics card sensibly, DOS gaming shouldn't be an issue. most will work fine on a PCI system, but you might need an ISA soundcard for full compatibility. I've got a small collection of PICMG boards, and a small 3 slot backplane wedged into an AT case (It doesn't quite line up, as I discovered to the cost of a SCSI card and hard drive after I powered it on after moving house to be greeted with magic smoke), I'd expect at least the pentium pro and socket 7 ones to be fine, but I'm not so sure about the PIII based one. I'm now thinking that if you had your A4000 tower conversion in a full tower case, there's probably be space inside to mount one of those little backplanes and a second PSU to keep the Amiga and PC sides totally separate but enclosed in the same case. The same could be done by mounting a backplane above the motherboard inside an A2000, and replacing the huge stock PSU with a couple of low profile ATX ones, I think there's enough height on the case to clear the PCI cards and SBC, just.

17 August 2009, 17:48	#25
CU_AMiGA Banned Join Date: Dec 2003 Location: Exeter Age: 38 Posts: 970	Just thought i d add this. I havent really hade much time to do anything yet that pushes this or makes real use of the PC side yet. But thought i d note the mysterious Picasso IV "flickering dot" bug that alexh found hilarious has gone (i think i changed the way i installed the Picasso 96 software or something).

23 February 2022, 09:56	#26
midway Registered User Join Date: Oct 2012 Location: Portland, USA Posts: 25	Awesome project! I tried setting one up in a 4000T but the board doesnt start only the cpu fan turns. Its a pentium mmx 233, the same board you have. Did you have to recap it?

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