Can this PSU handle GTX 750 Ti and the rest of my rig

Sanin97 · Jul 17, 2014

My PSU is Gigatech Power Supplie ATX400W

Specifications
Input voltage: 110/230V
Output voltage: 12V +/-3%
Output power: 400W
Red LED light
Cooling: 80mm fan
Output efficiency: >76%
MBO: 20+4pin; CPU 4pin
HDD: 2xsata/2x4pin

My other components are:
CPU: Core 2 Quad 9400
Ram: 4gb (2x2gb) DDr2 800Mhz
HDD: Samsung 160HJ

bignastyid · Jul 17, 2014

Its a very low quality PSU. I would suggest buying a new PSU before upgrading anything else.

bryonhowley · Jul 17, 2014

Well according to Nvidia the GTX 750 Ti needs a minimum of 300watts. That is just for the GPU not counting the rest of the components.

Sanin97 · Jul 17, 2014

If 750 Ti can't will just 750 be better or they need the same PSU power ?

bignastyid · Jul 17, 2014

bryonhowley :

Nvidia's 300w recommendation is for the whole system not just the GPU. A stock 750ti will use a max of 64w, there are oc'd version that will use more but nothing close to 300w.

bignastyid · Jul 17, 2014

Sanin97 :

The problem is that is a very low quality PSU. You are already risking damaging the system by just using it. Putting it under any more load will increase the odds of catastrophic system killing failure. Low quality psus tend not to dia alone and many times they die in a spectacular manner(smoke and sometime flames).
https://www.youtube.com/watch?v=Ezk9OA7aKOE

chris987 · Jul 17, 2014

that psu is very weak. this info you post isnt enlightening at all! however form gigatechs high resolution photos i receive the following. 12A for the 12V rail. that is very dissapointing! it can barely output 144w. the 5V rail can actually output a lot more and that is clearly an older psu design! i recommend a psu upgrade.! where are you buing from?

Sanin97 · Jul 17, 2014

chris987 :

From one computer store from Bosnia called Hyperlink.

bignastyid · Jul 17, 2014

http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html

Get something 500w(or larger) from tier 1 or 2(a or b). If you no other choice a tier 3 unit may work. Avoid anything in tier 4 and especially avoid tier 5.

chris987 · Jul 17, 2014

Sanin97 :

http://www.hyperlink.ba/index.php?option=com_virtuemart&category_id=47&page=shop.browse&Itemid=70&limit=20&limitstart=0 is this the store. extremely limited options unfortunatelly!are these only? Cooler Master PSU GM Series G650M 650W Modular this is the better quality one but really not needed. a true 450w one would be more than enough actually. other online stores?

Sanin97 · Jul 17, 2014

Chieftec Smart Series GPS-400A8
What about this PSU ?

chris987 · Jul 17, 2014

Sanin97 :

it is CWT (Channel Well Technology) made. i cant track much about it but there is no reason it should be bad. i would say a mediocre one but surely a lot better than your current one for sure. it has a combined 12v rails of 336W more than enough for your system! it can even run stronger gpu since it provides a 6pin pcie power cable

Sanin97 · Jul 17, 2014

chris987 :

Sanin97 :

it is CWT made. i cant track much about it but there is no reason it should be bad. i would say a mediocre one but surely a lot better than your current one for sure. it has a combined 12v rails of 336W more than enough for your system!

Thanx

chris987 · Jul 17, 2014

Sanin97 :

chris987 :

Thanx

you are welcome!

Sanin97 · Jul 18, 2014

chris987 :

Sanin97 :

you are welcome!

Just one more question, how much Gigatech PSU from question have amps ?
I don't know how to see that

chris987 · Jul 18, 2014

Sanin97 :

that psu is very weak. this info you post isnt enlightening at all! however form gigatechs high resolution photos i receive the following. 12A for the 12V rail. that is very dissapointing! it can barely output 144w. the 5V rail can actually output a lot more and that is clearly an older psu design! i recommend a psu upgrade.! where are you buing from?

A = Amps . check the psu sticker

Sanin97 · Jul 18, 2014

chris987 :

Sanin97 :

that psu is very weak. this info you post isnt enlightening at all! however form gigatechs high resolution photos i receive the following. 12A for the 12V rail. that is very dissapointing! it can barely output 144w. the 5V rail can actually output a lot more and that is clearly an older psu design! i recommend a psu upgrade.! where are you buing from?

A = Amps . check the psu sticker

Its +3.3V - 12A
+5V - 25A
+12V - 12A

So if some graphic card need 20amps minimal is this enough ?

chris987 · Jul 18, 2014

Sanin97 :

chris987 :

Its +3.3V - 12A
+5V - 25A
+12V - 12A

So if some graphic card need 20amps minimal is this enough ?

you are interested in the 12v rail ability, pc components draws power from it. with 12A the gigatech isnt enough obviously. it isnt a 400w one. with a 12v rail of 12A*12V = 144W . it equals to an 200-250w psu.

http://www.jonnyguru.com/modules.php?name=NDFAQs about psu read here

Can this PSU handle GTX 750 Ti and the rest of my rig

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