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Two systems on one PSU: FSP 700

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Two systems on one PSU: FSP 700

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Crashman   03-10-2006 at 12:01:25 PM

I've been stress testing Fortron Source's Epsilon while connected to two systems, via custom power splitter cables, an Athlon 64 SLI system and a Prescott with an X1900 and X1800XL running game benchmarks.

Just thought you'd like to know.

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Rugger   03-10-2006 at 01:44:45 PM
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SWEET! Stable? How's it holding up to the pressure?

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Rugger   03-11-2006 at 01:50:29 AM
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Nice!! What's the continuous load and how long has it been stable like that?

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Crashman   03-11-2006 at 02:15:08 AM
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Something like 750W for a day. I really need to get the comparison part into the rig, time constraints. But the system still handles transitional loads, connecting and disconnecting four spare hard drives simultaniously, while running game benchmarks on both platforms

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SuperFly03   03-11-2006 at 02:29:55 AM
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How'd you power them both? just rigged a splitter for the main ATX connection and so on and so forth? I have the 600w version of the PSU your testing, and I love it as well.

I ask because I wonder if i could run a server for my folding farm off the same PSU to save some money hehe.

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Crashman   03-11-2006 at 04:45:34 AM
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Yes, I'm using a custom-made splitter. I was only able to find one retail splitter, and all distributors were out of stock.

With my setup I have to power the boards up in the correct sequence to get both working. Otherwise one hangs in standby mode.

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RichPLS   03-11-2006 at 04:53:15 AM
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Excellent, I have been eyeing that PSU for a few weeks. Plan on getting it.
What are the spec differences between the 600 and 700w models, best I can tell by their rated specs, are identical.
I assume the 700 is built better tho.

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Crashman   03-11-2006 at 05:54:17 AM
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I don't have the 600W version to compare!

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RichPLS   03-11-2006 at 07:34:07 PM
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Have or are you reviewing this and in you professional opinion is this one of the best 700 watt PSU's for the price around $170?
From the very few reviews I can find on it seem positive.

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Crashman   03-11-2006 at 09:20:53 PM
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Wow, I really can't say, send me a few more 700W power supplies to compare!

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hergieburbur   03-11-2006 at 09:39:34 PM
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That;s cool that you got that working stable. DO you know what determines the order you have to power them up in, or do you think it's more of a flaky thing??

Reply to hergieburbur
Crashman   03-11-2006 at 09:48:12 PM
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It looks like a fluke. One board won't power it up, the other will. If I power it up from the second, the first sticks in standby mode. However, either the first or second can hold the power supply in "power on" mode.

There is a workaround: Power them both up at the same time. That would require a split lead power button.

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hergieburbur   03-11-2006 at 09:51:59 PM
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Makes sense. I couldn't think of a valid reason for that behavior unless they were somehow wired in series, but I have't played with that type of stuff in a while, so I may be a bit rusty.

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Crashman   03-11-2006 at 10:31:57 PM
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It appears to be a power management issue. Not to worry, just run a split-lead power button, either board will maintain power on until both are shut down. When shutting both down simultaniously, the first one to complete shutdown will sit in standby waiting for the other to cut the power.

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hergieburbur   03-11-2006 at 10:53:28 PM
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Well, I have a lowly 550W power Supply thats near brand new, so I probably won't be playing with this anytime soon. I am just interested in the concept and the results.

Reply to hergieburbur
jokersgrin   03-12-2006 at 07:28:28 AM
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Quote :

It appears to be a power management issue. Not to worry, just run a split-lead power button, either board will maintain power on until both are shut down. When shutting both down simultaniously, the first one to complete shutdown will sit in standby waiting for the other to cut the power.



Same here, I would also like to see the results after you are done.

Please!

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