Laptop with no battery, computer turn off when gaming

[Imhotep]

The battery in my laptop failed, so I removed it.

Now, when I load games that are potentially more graphically taxing, and which used to run without issue when the laptop had a battery, such as 'Company of Heroes', the laptop will instantly turn off when the game loads. (Not the game's menu screen, but the gameplay bit of the game).

Why is this? Why is the power that comes from the mains supply not sufficient?

Are there any solutions that don't require buying a new laptop battery?

[_I_]

yes, the laptop needs more power to run its cpu+gpu at full potential than its power brick can offer

a stronger brick may work, but if the laptops charge circuit cant deliver enough it will not

[Bad 💀 Motha]

Sounds to me like that is simply not the original power brick otherwise it should provide enough power on its own. Laptops do jot use the external power and battery at the same time.

However when using it this way it's easy to accidentally have the Laptop power off if there is any issues with the power brick plug that plugs into the laptop side, so need to ensure it doesn't have a poor connection and that it doesn't get unplugged during use. Normally if this were to happen not a big deal as it would switch over to the battery without delay. But again laptops don't use the both power sources at the same time. So it's most likely a faulty power brick.

[Imhotep]

It's definitely the same power supply - the original one that came with the laptop.

I was wondering if there was a way to throttle the power, so it didn't exceed its capability, at the cost of reducing performance. With a battery, there's the power conservation vs performance power slider, but with the battery removed, this no longer appears.

[Imhotep]

I don't think it's the power lead getting disconnected. It happens the moment the 3D game starts after loading from the game's menu screen.

I don't think it's the laptop overheating, although that can produce an identical result - the laptop just turning off without shutting down.

[craigal]

What do you mean by "just turning off without shutting down". If a laptop is getting too hot it can just turn off without eprforming a normal shutdown.

Another possibility is that if the power brick is old, maybe it is not delivering sufficient power to the laptop.

[Imhotep]

Originally posted by craigal:

What do you mean by "just turning off without shutting down".

Like as though pulling the plug.

I just tried it again with new game I bought 'Against the Storm', but it turned itself off both times. I don't think it's overheating as the game wouldn't have been running long enough to overheat, and my laptop wasn't hot in any case.

[icehat]

it's either a) not enough current through the AC adapter or b) power circuitry on the motherboard is failing

even though it's the OEM adapter I would compare the current rating just to be sure, on a laptop it's somewhere on the bottom or in the battery compartment. if you have a multimeter you should also verify that the brick can actually deliver the voltage/current on the label

if you have two graphics cards, try disabling the discrete card and running a game only on integrated graphics to see if the problem still occurs

[_I_]

Originally posted by craigal:

What do you mean by "just turning off without shutting down". If a laptop is getting too hot it can just turn off without eprforming a normal shutdown.

Another possibility is that if the power brick is old, maybe it is not delivering sufficient power to the laptop.

overheat will make it throttle, not shutdown
unless its like a 15+yr old laptop, core2 days or amd athlon/phenom/sempron/fx or earlier

[A&A]

First gen intel core is not good either

[Imhotep]

I realised what was causing the shutting down. I had had a phone still attached to one of the laptop's USB ports, which had been charging and I'd forgotten to remove it. That must have exceeded the power consumption when I played high-performance games.

I've been able to play high-performance games on the laptop without a laptop battery when nothing chargeable is attached to the USB ports.