Connecting a 600W Power Supply to Equipment Requiring 300-350W: Potential Issues?

Question

Maybe that's a stupid question as well :) but are there any contraindications for connecting 600W to equipment that needs a power supply of 300-350W at most. Because I want to pay for new equipment in installments and the power supply is crucial because the old one has failed.

goldi74 · Answer

There are no contraindications. The power reserve may come in handy in the future.

Lzep · Answer

And I would like to add that the power supply takes only as much as it needs from the network, so you don't have to worry about paying for 600W .

tadziq88 · Answer

I thought so, but my expert neighbor gives himself a cut and denies that the power supply must work under load. I'm going for the ax.

Lzep · Answer

After all, it will work under a load of 300-350W! Nowhere is it required that the load must be 90 or 100%?
For the proper operation of the switching power supply, a much smaller load is enough - often when measuring the power supplies (for a PC), I connect 2-3 old CDs and it is enough!

tadziq88 · Answer

Sorry, I meant close to the maximum.

Lzep · Answer

It's not true, look for that ax

goldi74 · Answer

No computer ever draws constant power. It changes depending on the activities currently performed. Following the neighbor's line of thinking, the computer would have to be replaced with another power supply every now and then, depending on whether we are just making a note in a notebook, browsing the internet or launching the latest game with 8D effects.

helmud7543 · Answer

Maybe he meant that he must have some load (in most power supplies, a residual, at least one hard drive is enough - unless it's about 1000W or more). Probably all ATX power supplies have resistors enabling operation with zero load - possibly the protections may not allow it to start in such a situation or they will turn it off after a few seconds. Possibly, it will not be able to control the voltages and it will also turn off due to the activation of protections. On the other hand, buying a too strong power supply and using a computer that uses a fraction of its power does not involve anything other than paying in the store more than necessary.

korrus666 · Answer

There seems to be one more issue, namely the efficiency of the power supply. At low load, a power supply with higher maximum power will certainly have lower efficiency and will draw more current than a power supply that works at, say, 70% of its maximum power.

BILGO · Answer

Colleague korrus666 I write well. The ATX power supply has the best efficiency if it is loaded from 60% to 70% of the rated power of the power supply. So if the author of the topic is thinking about expanding the computer, he can buy this 600W ... And if not, I would advise against buying this 600W power supply because it is a waste of money.

The question remains, what brand is this power supply? If it is "Chinese" then 600W is definitely not ... so it should be loaded in about 65% of its real power

tadziq88 · Answer

SilentiumPc Deus G1 80Plus Bronze 600W

BILGO · Answer

In my opinion, it makes no sense to spend money down the drain ... Anyway, the brand is also so bland ... Specify exactly what is in the computer casing? and we will tell you which power supply to buy for this set.

tadziq88 · Answer

There is
Drive
WD Blue WD5000AAKX
AMD HD 6670
AMD X2 +5600
MOBA
and framework

It will probably replace with

I postponed the Intel Core i5 processor because the prices will be different after the payment
MOBA for it
Ram
+ SDD
+ new graphics at the end

swiercm · Answer

You can see that you have little idea about power supplies. As for you, SilentiumPC with 80+ is unremarkable, I have no more questions. Please read the tests and opinions about branded PSUs, for example in the pages of the electrode, This brand is one of the FEW brands that produce power supplies at a reasonable price, to which no one has complained about a malfunction. Added after 1 [minutes]: For this set, the younger brother, the SilentiumPC 300W DEUS, will be perfect. You can also target other brands, e.g. XFX450W or Corsair450-500W. It all depends on your budget.

Anonymous · Answer

On the other hand, I recommend that you read the whole topic, not just in fragments. The author plans to replace computer components, which he wants to spread over time, and thinks about the power supply in the future.

tadziq88 · Answer

Thanks for the help I already know that I can connect a more powerful power supply without scruples.

swiercm · Answer

Of course you can. Let me put it this way - it is even very advisable that the power supply has a power reserve. There are several reasons that you already know about, and I will also write that the operation of the power supply at 100% does not bode too long for it. Very often, when the power supply is too weak, its capacitors are damaged. greetings

Connecting a 600W Power Supply to Equipment Requiring 300-350W: Potential Issues?

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