Physical vs logical cores, and power

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dkulprit

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Nov 29, 2012
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I am kind of at a loss here. I know the difference between a physical core and a logical core.... But I am having an issue here. I am using thermaltake, coolmaster, etc power supply calculators and the very FIRST thing on them all is "cpu type." The drop downs have 1, 2, and 4 "physical cpu's."

This is where I get confused. Directly under that drop down it says "Attention: A single Dual or Quad CORE CPU is still 1 physical CPU!"

I have an AMD FX-9370.

I know it's a quad core with 4 logical cores to make it an "8" core cpu. Everything I am reading from googling "what is a physical cpu" is coming back as the amount of cores in a cpu is how many physical cpu's I have.

I'm running into a power issue, I don't know if it is my psu failing, or if it is lack of power. With me getting 2 DRASTICALLY different numbers, I am on the fence of what to do.

I have a 1050w gold rated psu. When only choosing 1 "phycial cpu" i'm in the 800 range. Perfect, so it's probably my PSU poopin out.

When I choose "4 physical cpu's" I'm getting 1381w for recommended power. Which means my power problems under load are coming from just not having enough to run everything.

Please help.

Thank you.
 
Solution
ko888
You should have gotten a PSU that has both an 8-pin EPS12v and a (4+4)-pin EPS/ATX12V CPU power connectors and plugged them into the 8-pin EATX12V_1 and 4-pin EATX12V_2 connectors on the motherboard. The AMD FX-9370 can draw a considerable amount of power when overclocked.

Did you plug a 4-pin Molex peripheral power connector from the PSU into the 4-pin EZ_PLUG connector on the motherboard?

If the graphics cards are being used for crypto-currency mining then they will draw around 50 Watts more power per card than when gaming. A 1200W PSU would be more suitable for this purpose.
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dkulprit

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Nov 29, 2012
314
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I figured as much. Besides for blade servers, I've really never seen more then 2 physical cpu's. As I said, I was just concerned because when I googled "physical CPU" it came up as how many cores are in the CPU.

HiTech my specs are:
Crosshair v formula-z
FX-9370 @ 4.7
Mushkind redline @ 2400 cas10 (I forget off of the top of my head what voltage is)
2x sapphire r9 280x toxics in xfire
Coolermaster seidon 240
60gb Kingston v300 as os
2x Kingston hyper x in raid 0 for games
2tb Seagate barracuda as games I no longer play storage
3tb barracuda as media storage
2 noctua 120mm fans on CM rafiator push config
2 noctua 120mm as front case fan
1 BF spectre pro 230mm side case fan
1 160mm noctua on rear
Toshiba BR read/writer
Rosewill lightning 1000


An 850w SHOULD cover it... But I'm getting random power related crashes. Even if I take all the components and add up their max wattage, it's like 820. There is never going to be a point where I have more than 2 hhd/ssd's running at the sane time.

It's probably my psu pooping out, but I just want to make sure I just don't warranty this thing and have it happen again. I'm looking at the antec hcp-1300 (1st choice)
Corsair ax-1200i

The price point is way better on antec. But I like the idea of being able to parse info gathered from corsair.
Overall the best price point would be free with a warranty replacement, but I need to make sure this machine can handle it.
 
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ko888

ko888

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Feb 18, 2009
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You should have gotten a PSU that has both an 8-pin EPS12v and a (4+4)-pin EPS/ATX12V CPU power connectors and plugged them into the 8-pin EATX12V_1 and 4-pin EATX12V_2 connectors on the motherboard. The AMD FX-9370 can draw a considerable amount of power when overclocked.

Did you plug a 4-pin Molex peripheral power connector from the PSU into the 4-pin EZ_PLUG connector on the motherboard?

If the graphics cards are being used for crypto-currency mining then they will draw around 50 Watts more power per card than when gaming. A 1200W PSU would be more suitable for this purpose.
 
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