What can this PSU run?

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geofelt

geofelt

Titan
Oct 9, 2006
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Here is a handy chart:

http://www.realhardtechx.com/index_archivos/Page362.htm

But... if this is a cheap psu, do not count on getting advertised power.

A cheap PSU will be made of substandard components. It will not have safety and overload protections.
If it fails under load, it can destroy anything it is connected to.
The advertised power may be bogus.
It will deliver advertised power only at room temperatures, not at higher temperatures found when installed in a case.
What power is delivered may fluctuate and cause instability
issues that are hard to diagnose.
The fan will need to spin up higher to cool it, making it noisy.
A cheap PSU can become very expensive. Do not buy one.
 
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R

Rexper

Respectable
BANNED
Apr 12, 2017
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so it has 3 18A (=3x216W) rails but can only supply 400W?
Click to expand...
That isn't how multi-rail PSUs work. The manufacturer could have implemented as many or as few 12V rails as they wanted.

What is means is that a single 12V rail, like the 12Vcpu, can output 18A at most. That's because it's OCP is set to 18A. That is why PSUs have multiple 12V rails.
Overall, the PSU can still only supply 400W on the 12V rail. This is no indication of quality.

12V rail only indicates an OEM Dell/HP PSU. The power supply should be capable of whatever it can connect to.

I believe this is your PSU?

According to the HP Z210 CMT Workstation manual


  • V12CPU = Input to onboard regulator that supplies power to CPU and CPU fan
    V12-B = Storage (hard disk drive, optical disk drive, diskette drive), PCIe slots, system fans
    V12 S = Input to onboard regulators
    V12–G = Auxilliary power for graphics
    V12N = PCI and serial port
    11VSB = Input for sleep circuitry

Maximum allowable graphics card power for Slot 2 is 150W. Note that 75W is available from
the system board and an additional 75W directly from the PSU (using the 6–pin power connector
from the power supply).
Click to expand...

If this is indeed your PSU/system, the best GPU it can support is a GTX 1070 that requires just a single 6-pin PCIe connector.
That is if the BIOS and physical size is compatible.
 
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M

ManOfArc

Honorable
Jul 8, 2017
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@ Rexper
Yes, that appears to be the nameplate on my PSU. I believe the HP computer may be the one you suggest, as well. (not on it right now, but I'll check)
the PSU does have a 6-pin PCIE connector, and I tried it with a RX-580 my friend wants to sell me cheap. That is why I asked about the 580. I didn't run the 580 at much other than idle, I was just curious to see if the 8-pin header on the card would work with a 6-pin connector from the PSU.

I don't want to get a new PSU if I can help it, because the motherboard uses an odd-ball connector that isn't like the 24-pin one on retail PSUs.
 
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geofelt

geofelt

Titan
Oct 9, 2006
54,333
4,162
174,240
If a graphics card has a 8 pin connector, it needs one.
It is when the card really has to work, like in games that it will demand the extra power.
In games, you are likely to see artifacts or game shut down.

If your psu has a 6 pin connector, stick with a graphics card that needs no more.
That will typically be a GTX1060 which performs about the same as the RX-580 that your friend wants to unload on you.
 
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