EVGA 450w B1 powering AMD 7950 GPU

[Hans Gruber]

A quick run down of my specs on one of my budget builds. I recycle parts from past builds and incorporate the parts within new builds.

EVGA 450w B1
Pentium G4560 with Xigmatek Gaia 120mm air cooler
ASRock B250 Pro4 motherboard
8GB 2 X 4GB Crucial Ballistix DDR4 2400
240GB Corsair SSD
1TB Samsung F1 HDD

Running my old 7950 during gaming no issues. I probably made the mistake of OC'ing my GPU but again no hiccups while gaming. After a few days I notice they system was hanging. When I rebooted it said it reset my 7950 OC. My 7950 is in power overdrive with the blue button that cranks up the party from 850Mhz to 925Mhz on the core clock. I was running 1060mhz and 1575mhz memory with a 20% power boost in the GPU.

I did another OC without boosting the power (either +10 or +20%) and I got another hang. I guess I could leave it at stock but my last test is for bumping the memory from 1275mhz to 1350mhz.

The computer has only hung in sleep mode. Any thoughts on my issue?

I have named this budget build Mighty Mouse.

 

[Psychomanteum]

You have enough power for sure.

 

[VirtualLarry]

You have enough power for sure.

Given that the EVGA PSU is a thoroughly modern +12V design, I tend to agree. Though it may be under the official recommended PSU specs by a bit. The CPU in question is 14nm and cannot be overclocked, so it probably draws at most 30W under gaming load. (Remember, no AVX.)

 

[Valantar]

GPU PSU specs are usually way overblown (to remove any liability for blown PSUs from the GPU manufacturer, I suppose). As an example, EVGA states that you need a 400W PSU for their GTX 1060 Gaming, which they also state has a maximum power draw of 120W. Now what in the PC is going to use the remaining 280W? A heavily overclocked i7-6950X?

 

[Hans Gruber]

It's been running like a dream with no OC on the graphics card. The computer never crashed because of lack of power. . In theory that could be because of an unstable OC but it wasn't during any gaming session. I still have a slight OC on the memory on the 7950. The AMD graphics driver reset to stock speeds. My OC included a 20% power boost. I think I was running 1060mhz core and 1575mhz memory.