New Video card for a 300 Watt PSU

Toggle sidebar Toggle sidebar
A

armyattack888

Reputable
Jul 19, 2015
9
0
4,510
I am searching for a video card that can run with a 300 Watt PSU.
I saw the EVGA GeForce GT 730 2GB GDDR5 LP that can run on a 300 Watt PSU but that has a minimum recommended power supply with +12 Volt and a current rating of 20 Amps.
I have +12 volt but 16 Amps.
Has the GT 750ti (superclocked) also +12 Volt and 20 Amps?
Is it not suitable for my pc because of this?
Are there more options?!
Please help!

PC specs
Processor: AMD A10 7800 Quad-Core
RAM: 8GB
HDD: 1 TB
Motherboard is unknown. Got a Medion Akoya E4005 E (MD 8357) but it has a 14 pin PSU connector so thats one way to distinguish it.
 
Solution
nukemaster
I am not sure how I feel about them not placing any value for 5 and 3.3v, but since you said it has a 14 pin power connector(non standard). The board may well not even require 5 and 3.3(it would have to generate its own lower rails in the case.)

I would be curious to see the inside of this computer.

On paper you have enough power for the 750 ti(and your cpu is very power friendly as well.). As long as it delivers that it says on the label you should be fine(since it is a multi-rail that MAX combined is 28amps, but you want to under rate it a bit just to be safe).
Sort by date Sort by votes
nukemaster

nukemaster

Titan
Nov 23, 2004
19,626
6
74,965
Can I have an image of your power supplies label.

16 amps @ 12 volts is 192 watts(not that a light enough system would not run on that). This is a little on the low side for a 300 watt unit, but if you have multiple rails you may have a higher combined rating.

Something like this.
psu.jpg
 
Upvote 0 Downvote
Asher2099

Asher2099

Reputable
Aug 16, 2015
160
1
4,760


Actually Dell PSU are made by Delta and are good quality. HP on the other hand you better replace it
 
Upvote 0 Downvote
jimmysmitty

jimmysmitty

Champion
Oct 5, 2007
21,605
599
59,140


Not all are good quality. I have replaced plenty of Dell PSUs that have gone bad.

That said, the GTX 750Ti is recommended to have 350W minimum PSU for entire system pull. I would not try running a 750Ti on a PSU that cannot provide enough power for the recommended minimum.
 
Upvote 0 Downvote
nukemaster

nukemaster

Titan
Nov 23, 2004
19,626
6
74,965
I have seen some perfectly fine HP power supplies(and some are Delta too) as well.

ANY power supply can fail and defects happen.

The 750ti is a real lightweight and that is a good thing. EVGA recommends 300 watts, but do not mentioned the amperage rating.

The next/other(if your case the video card may take less than the cpu) big power draw if your system is the cpu. Not all cpus draw as much power. This means you have a rather wide range of power requirements for systems.

Companies make some very strange requirements. I think many of these are for older power supplies that did not place the majority of the power on the 12 volt rail. an old 450 watt unit may only have 200-250 watts of the total on its 12 volt rail while a new one may have 400-the full 450.

This can be done because modern power supplies are nothing but huge 12 volt machines with DC-DC converter(switching regulators that can also improve efficiency) to get the 5 and 3.3 volt lines. They still have the standard standby(5v) and required negative voltage(s). This gives them an option to run systems that want lots of 12 or lots of the lower voltages and anything in between. Clearly you can not pull 120 watts on the 5 volt rail and have 450 left on the 12 volt rail, but that is rare anyway. USB 3.0s charging ability may place 5 volts as a more used rail at some point. Add to this the new C type charging being able to have 12 and higher voltage(20) similar to what firewire did we are in for some interesting changes.
 
Upvote 0 Downvote
A

armyattack888

Reputable
Jul 19, 2015
9
0
4,510


I have this: https://mail-attachment.googleusercontent.com/attachment/u/0/?view=att&th=152accf58b5ee8e5&attid=0.1&disp=inline&realattid=7ba959e2f9955090.1&safe=1&zw&saddbat=ANGjdJ9u0vQxrC7i7ILD9Dj99_eZIt9ILdlkdcM3fdLYQN5GZt0SgwAAcvwXAc93ZqBm3rXaWGkfxHKsHGFA5QplXA8jGLQmDC4QZ0jmr2bEsm0OmS2HRqQsn1S3RGHKeycJX466OzAE38Wu_N7GEOfTkCEdukq8vcCm3KdPDlAffbUJDkO0WDJ06yMQqBErp2JEBw6BEDfxJXRIpiX7t4bVsmudwlmgFOwptxloBPP0V_4r7OkJMHDbsK4o5jgGhTPvtLGt23bbw227S-jUqhsFV0GfwDNZwxTn0nwq7zZ2fok-ZsgmbeUL1S9PnoUoosgVa4YfY7aom_Ots5Vd9wzHIPh-R0O8jkKUpkLs1c8MdaCaNI7WwmDfN-f19Jnb8PUnUds8s11hz3qzp4prI-Lfwc-HZ0w1-AxAU0jgVYVVA7omj9g5t2mhl3N-rbMJBo0cCJrprWDwrEhfXfJIywfgDwo5S0fjdB4xFUv2lF3If-d6HMHSgfLinTQWqXTuSVlOQo9EbLUxA42xxQRK1kvvE6_AFj2KHwwKRmguqRE_HHeZPCjmPT_TFr5byTN7VDpKP0ojX_H35sQZQQ4j_L6FAuL_9s8kS9nuDS5E5MMfMk0oKQxtbteABVlvh74
 
Upvote 0 Downvote
nukemaster

nukemaster

Titan
Nov 23, 2004
19,626
6
74,965
I am not sure how I feel about them not placing any value for 5 and 3.3v, but since you said it has a 14 pin power connector(non standard). The board may well not even require 5 and 3.3(it would have to generate its own lower rails in the case.)

I would be curious to see the inside of this computer.

On paper you have enough power for the 750 ti(and your cpu is very power friendly as well.). As long as it delivers that it says on the label you should be fine(since it is a multi-rail that MAX combined is 28amps, but you want to under rate it a bit just to be safe).
 
Upvote 0 Downvote
Solution
A

armyattack888

Reputable
Jul 19, 2015
9
0
4,510


Tnx for the help, really apreciate it!

2 pictures of the inside of my pc:

Whole inside:
http://postimg.org/image/y3yz88ecd/
http://s14.postimg.org/3zaimv99d/20160207_182214.jpg

14pin connector:
http://postimg.org/image/sczlx9xn7/
http://s21.postimg.org/f8u1kl5lj/20160207_182248.jpg
 
Upvote 0 Downvote
nukemaster

nukemaster

Titan
Nov 23, 2004
19,626
6
74,965
Well that is an interesting design choice.

Your power supply does in fact ONLY seem to push 12 volts 5(for standby) and -12(I have no clue what this is good for. audio swings below 0 volts, but I doubt it is used for that)

Your lower rails are generated on your motherboard(still the same DC-DC(switching regulator) converters no doubt).

Some considerations for such a system.
1. You can never swap the board for a different model.
2. You have to stick with that power supply.
3. I do not see a 6 pin pci-e connector(maybe it is hidden). So you have to stuck with slot powered cards.

It is not the first DC-DC power supply on the market or anything. Check this out. It passes along 12 volts from the external power supply and generates the 3.3, 5, 5sb and -12. It is used in small form factor computers and saves a ton of space by moving the bulk of the power supply outside the case.
2ih46py.jpg
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom