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Thread: 2x OPUS 150watt in parallel? safe?

  1. #1
    Newbie toxsickcity's Avatar
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    2x OPUS 150watt in parallel? safe?

    Hi guys..

    I have a holiday house and it had solar electrical.

    I'm temped to just as easy running my com off the house inverter.. tho.. waste of power!

    I am thinking of dc-dc that have very high efficiency.

    Can I using 2 of opus's 150watt PSU

    and solder every output wire in parallel. to give me 300watts total?

    this way I can wire it direct to the solar's batteries which are 12V

  2. #2
    Variable Bitrate warnockm's Avatar
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    sounds like a disaster waiting to happen
    Progress - VIA EPIA SP8000 | 120 Opus Power Supply & Case | 1GB Ram | 120GB 2.5" Hard Drive | Bluetooth 2.0 | GPRS/3G | Wifi | Road Runner/LSX 2.0 (waiting for a day skin for 3.0) | iGuidance 4.0 | Lilliput 7"

  3. #3
    cheap custom title JC-S60's Avatar
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    NO!

    That is going to explode...

    What you can do, is using one opus for your mainboard and the other for the peripherals (drives etc...).

    The only thing you need to care about is the second opus powering up, but that's an easy mod.

  4. #4
    MySQL Error Scouse Monkey's Avatar
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    but have the mobo opus triggered off the peripheral one so the peripherals do not come on after the mobo which could be bad if you use standby.

  5. #5
    My man uses Levitra. Peoples's Avatar
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    might as well use an opus for the mainboard and a carnetix for the other devices. The opus mod might be more difficult than imagined because of the polarity issues with the power on switch. I dont know of a setting to disable this.
    PC Components:
    Lilliput; XPC/FLEX mobo; 1.7 ghz P4 Mobile;512 DDR; 160 gb HDD; opus 150; slot usb dvd-rw
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  6. #6
    Variable Bitrate StrataG's Avatar
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    Turning on two PSU's is a simple mod. Only requires 2 wires to be tapped from the PSU connected to the mb to 2 wires on the secondary. I believe I've seen atx adapters for this purpose to make it really simple for you.

  7. #7
    My man uses Levitra. Peoples's Avatar
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    i know that with a standard atx psu, you can simply jump the two green wires. But an opus has a shutdown controller, and built in error detection. If there is a way to disable the shutdown controller, then this would be easy
    PC Components:
    Lilliput; XPC/FLEX mobo; 1.7 ghz P4 Mobile;512 DDR; 160 gb HDD; opus 150; slot usb dvd-rw
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  8. #8
    Variable Bitrate StrataG's Avatar
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    True, but the shutdown controller will be a problem for both PSU's. He'd have to wire both ignition cables to the power source (so they'd be always ready). Outside of that I don't see why the mod wouldn't work.

  9. #9
    MySQL Error Scouse Monkey's Avatar
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    Quote Originally Posted by StrataG
    True, but the shutdown controller will be a problem for both PSU's. He'd have to wire both ignition cables to the power source (so they'd be always ready). Outside of that I don't see why the mod wouldn't work.
    the only issues witht eh power switch polarity is when you are switching a mobo on. you need to tell both opus's that the mobo has shut down and this can be done via the power good or whatever it is on the ATX connector. Easy peasy.

    If the current carrying for the 3.3 and 5V rails is shared you could use one off one and one off the other - maybe. but I would not mess aorund with the mobo power and just power the peripherals off a second PSU. if you have a P4 connector you could possibly use the P4 off the other PSU if you need more 12V power for the PC.

  10. #10
    Newbie toxsickcity's Avatar
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    I took all your reply's with respect with what I had just tried..

    After having many years in the technical side of computer systems..

    I actually just tried paralleling 2x opus 150's wire for wire...

    Don't know why you were all skeptical! It works. it works fine.. actually it makes the dc-dc power supply very quite and cool running as they don't overload.

    The computer power supply is a typical power supply with OUTPUT Voltages.. simple battery idea's battery in parallel is 2x current, in series you get double voltage..

    I remember now while working with centrecom for ages.. I guy had a computer it was a massive server.. had like 10 drives and a motherboard with quad processor.. it had raid scsi etc..

    he needed a higher end psu.. so he did the parallel trick!

    so for you guys.. it is possible.. so if you want to power high end pc's just buy 2 opus and para them!

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