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Artex's Build of the Week: Time Machine

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Reply 20 of 32, by borgie83

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F2bnp wrote:

Awesome, as always Artex!

Just a quick question though, does the CX500 have a -5V rail? Otherwise, how do the ISA cards operate? I thought this was a necessity!

The only isa cards I can think of that require -5v is the sound blaster 2.0 CT1350B and the Roland LAPC-I although I could be wrong about the LAPC-I as I have never owned one before. Besides these, -5v is not required and you're probably better off using a modern power supply. There are ATX to AT adaptors to get a modern ATX psu to work with the old AT power connectors.

http://www.amazon.com/gp/aw/d/B000E7JUVO/ref= … X110_SY165_QL70

Reply 21 of 32, by Artex

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F2bnp wrote:

Awesome, as always Artex!

Just a quick question though, does the CX500 have a -5V rail? Otherwise, how do the ISA cards operate? I thought this was a necessity!

It does not..but the cards work just fine.

Corsair CX500 Power Supply (CMPSU-500CX)
Voltage +3.3V +5V +12V -12V +5Vsb
Max. Current 25A 20A 34A 0.8A 3A
Max Combined Wattage 130W 408W 9.6W 15W
500 Watts @ 30°C ambient temperature

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Reply 22 of 32, by PhilsComputerLab

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Yes, SB 2.0 and LAPC-I need -5V. So does the PAS16, otherwise you get sped up speech in some games (Space Quest 4).

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Reply 23 of 32, by F2bnp

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Ah, thanks for clarifying this guys. No worries then, I can grab modern (and quiet 😉) PSUs to use with my retro PCs 😀.

Reply 25 of 32, by borgie83

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vetz wrote:

For AT motherboards there are adapters ATX to AT adapters with -5V rail converter built in. Like this one:
http://www.ebay.com/itm/251025150787?_trksid= … K%3AMEBIDX%3AIT

Maybe one exist for ATX as well.

Never seen these ones before. Have you tested one of these yourself vetz?

Reply 26 of 32, by Artex

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I'm using several of the adapters Vetz referenced in my Socket 3 (AT) systems and they are working great with modern PSUs.

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Reply 27 of 32, by PhilsComputerLab

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Very neat. I use adapters, but wasn't aware there are some with -5V 😀

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Reply 28 of 32, by borgie83

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Artex wrote:

I'm using several of the adapters Vetz referenced in my Socket 3 (AT) systems and they are working great with modern PSUs.

So have you tested for instance a CT1350B using an ATX psu with this -5v adaptor?

Reply 29 of 32, by Artex

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borgie83 wrote:
Artex wrote:

I'm using several of the adapters Vetz referenced in my Socket 3 (AT) systems and they are working great with modern PSUs.

So have you tested for instance a CT1350B using an ATX psu with this -5v adaptor?

Come to think of it.. I haven't... I'm using SB16s in them.

HOWEVER... 😀 I will be posting my next build this weekend and I can certainly throw in a SB 2.0 and see how it works.

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Reply 31 of 32, by PhilsComputerLab

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I have no doubts that the SB 2.0 will work with that adapter 😀

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Reply 32 of 32, by borgie83

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Well I look forward to seeing your results Artex. If it works I'll definitely be making a purchase 😀