New Power Supply?

[starbot]

Hey everyone!

This is a dumb question considering the amount of times it has probably been asked, but I'm pretty new to the PC Building scene. Typically I'd just buy my desktop based on reviews and looks, but I've learned a lot since then, anywho...

Recently, I bought Fallout 4 and wanted to upgrade my GeForce GT 730 to something that could actually run the game. I searched and found a reasonable graphics card for my budget price range. No big deal!
What I failed to realize is that my old GPU ran off of the power given from the MoBo, and didn't have any external inputs to be powered by the PSU. The PSU that came with the computer only runs 250W and only has two pin cables, both connecting to the MoBo. These two cables are, from my noob eyes, an 8 pin cable and a 4 pin cable.
What I realized is that I need to get a new power supply to accommodate the new GPU, so I watched Linus' video on how to choose a power supply, and I found something reasonable.

My question is: What power supply will work for the cables I need?

I'm looking for a 750W based on my estimated wattage necessary, which was ~590W.
https://www.amazon.com/EVGA-Bronze-Modular-Warranty-110-BQ-0750-V1/dp/B01FYDUDJ0/ref=sr_1_4?crid=2R6NSTMBLJEA0&keywords=power+supply+750w&qid=1560463353&s=gateway&sprefix=power+sup%2Caps%2C168&sr=8-4
this is the power supply I was looking at.

My desktop is an IdeaCentre 700, and none of the specs have been changed as of now, besides the graphics card which doesn't work (obviously.)
GPU: Sapphire Radeon R9 290 Tri-X
MoBo: Lenovo 90ED0000US (From IdeaCentre 700)
RAM: 8 GB DDR4 SDRAM
Processor: Intel Core i5-6400

As aforementioned, I'm very new to this scene so if more information is required, I am happy to provide it.

[Fasauceome]

5 minutes ago, starbot said:

I'm looking for a 750W based on my estimated wattage necessary, which was ~590W.

 

5 minutes ago, starbot said:

GPU: Sapphire Radeon R9 290 Tri-X
MoBo: Lenovo 90ED0000US (From IdeaCentre 700)
RAM: 8 GB DDR4 SDRAM
Processor: Intel Core i5-6400

trust me, that's a great overestimation. no need for online PSU calcs, they're all inaccurate.

try this:

https://pcpartpicker.com/product/zBfmP6/bitfenix-formula-gold-550w-80-gold-certified-atx-power-supply-bp-fm550ulag-7r

for the same price as what you were considering, you get a high quality unit with 80+ gold as an added bonus. 550 watts is far more than you'd need, so you have room to upgrade as well.

 

Also, check out the PSU tier list by clicking the PSU in my signature below, it's a great starting point for evaluating PSU quality. You want something that's good for a system you care about.

[starbot]

Would this also work for the cables that I need? The graphics card needs 2 8 pin connections + the 2 cables already used on the MoBo.

[Fasauceome]

4 minutes ago, starbot said:

Would this also work for the cables that I need? The graphics card needs 2 8 pin connections + the 2 cables already used on the MoBo.

It will, every PSU (for your use case anyway) will have 8 CPU power pins, also known as EPS connectors, a 20+4 pin for the motherboard power, and in this case, dual 6+2 pin connectors for the graphics card.

 

Also, be sure to quote people so they see your responses.

 

edit: alright I double checked to see if the ideacenter 700 has a proprietary connector or not and if this video is of the same model you have:

Then a standard PSU won't actually work because the motherboard uses a proprietary connector and not a standard one.

[starbot]

Quote

It will, every PSU (for your use case anyway) will have 8 CPU power pins, also known as EPS connectors, a 20+4 pin for the motherboard power, and in this case, dual 6+2 pin connectors for the graphics card.

 

Also, be sure to quote people so they see your responses.

Gotcha. For some reason, my MoBo doesn't use the 20+4 pin connection at all. Not sure why this is.

[Firewrath9]

5 minutes ago, fasauceome said:

 

trust me, that's a great overestimation. no need for online PSU calcs, they're all inaccurate.

try this:

https://pcpartpicker.com/product/zBfmP6/bitfenix-formula-gold-550w-80-gold-certified-atx-power-supply-bp-fm550ulag-7r

for the same price as what you were considering, you get a high quality unit with 80+ gold as an added bonus. 550 watts is far more than you'd need, so you have room to upgrade as well.

 

Also, check out the PSU tier list by clicking the PSU in my signature below, it's a great starting point for evaluating PSU quality. You want something that's good for a system you care about.

I've heard of 290x + decent PC drawing 400W, 500W wouldn't be too far off, esp if he OC's the 290.

I'd reccommend a 650 b/c optimum efficency is at 50%.https://www.newegg.com/evga-supernova-120-gp-0650-x1-650w/p/N82E16817438131?Item=N82E16817438131&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-PCPartPicker%2c LLC-_-na-_-na-_-na&AID=10446076&PID=3938566&cjevent=176c16b18e2a11e9838c01080a240614

60$ after MIR

 

[Fasauceome]

Just now, Firewrath9 said:

I'd reccommend a 650 b/c optimum efficency is at 50%

not really, PSUs have ideal efficiency at anywhere from 40% to 70%.

 

either way another motherboard is apparently needed as well, since the ideacenter uses a proprietary connector for motherboard power.

@starbot try getting something off eBay like a used B150 or H110 motherboard so that you can use a standard PSU.

[starbot]

5 minutes ago, fasauceome said:

It will, every PSU (for your use case anyway) will have 8 CPU power pins, also known as EPS connectors, a 20+4 pin for the motherboard power, and in this case, dual 6+2 pin connectors for the graphics card.

 

Also, be sure to quote people so they see your responses.

 

edit: alright I double checked to see if the ideacenter 700 has a proprietary connector or not and if this video is of the same model you have:

Then a standard PSU won't actually work because the motherboard uses a proprietary connector and not a standard one.

This is my exact model.
What kind of PSU should I look for then?

[mariushm]

Hold your horses.

 

The motherboard in your computer most likely uses a custom power connector, that's not compatible with regular power supplies.  Whatever power supply you buy, it won't be able to power your current motherboard.

 

Bases on a quick search, it seems the motherboard in these systems is mATX standard, so you could in theory replace the motherboard with a regular mATX motherboard.

Then, you'd be able to use a regular ATX power supply to power the motherboard and other components.

 

If you decide to go this route, you would have to buy a Socket 1151 motherboard which is compatible with 6th generation Intel processors, because your cpu is an i5-6400... 6th gen gpu.

One that seems like it would work is 50$, this Asrock H110M-DGS: https://www.newegg.com/p/N82E16813157755

And this is one is basically the same model but also has a HDMI port on the back : https://www.newegg.com/p/N82E16813157772?Item=N82E16813157772

 

So you buy such a motherboard, and simply transplant the CPU and then connect all the other cables to the new motherboard - it's not complicated, and the motherboard manual will explain things... but basically it's like lego... the usb header cable from the case will only go into a usb 3 header on the motherboard, sata cables can only go in sata headers on motherboard and so on.

 

A Sapphire Radeon R9 290 Tri-X will consume up to around 250w from the power supply. The rest of your system will consume up to around 80 watts.

So, adding around 20-30% for safety and piece of mind, you'll need a power supply with minimum 400w or so of power on 12v, which is what both video card and processor use to power themselves.

Therefore, even a good quality 500w power supply would be enough for you.

 

A cheap but good power supply from a company with good reputation will be another 50-60$.

The cheapest I would be comfortable recommending would be Seasonic S12III  (3 I after, revised model, 2019) : https://pcpartpicker.com/product/3G97YJ/seasonic-s12iii-550-w-80-bronze-certified-atx-power-supply-ssr-550gb3

Another good option... Corsair CXM series : https://pcpartpicker.com/product/3hkwrH/corsair-power-supply-cp9020102na

 

 

[Fasauceome]

2 minutes ago, starbot said:

This is my exact model.
What kind of PSU should I look for then?

same PSUs as have been recommended, and grab this too:

https://www.ebay.com/itm/ASUS-B150M-C-Motherboard-USED/173922293624?hash=item287e939778%3Ag%3AohgAAOSwhKVc9Vbu&LH_ItemCondition=3000&LH_BIN=1

just something cheap to drop your CPU and ram in so that you don't have to worry about proprietary connectors anymore. Although it also makes me wonder about proprietary CPU mounting holes.

[Firewrath9]

3 minutes ago, fasauceome said:

not really, PSUs have ideal efficiency at anywhere from 40% to 70%.

 

either way another motherboard is apparently needed as well, since the ideacenter uses a proprietary connector for motherboard power.

@starbot try getting something off eBay like a used B150 or H110 motherboard so that you can use a standard PSU.

you can always get a multimeter and make something janky

[hello_there_123]

34 minutes ago, mariushm said:

A cheap but good power supply from a company with good reputation will be another 50-60$.

The cheapest I would be comfortable recommending would be Seasonic S12III  (3 I after, revised model, 2019) : https://pcpartpicker.com/product/3G97YJ/seasonic-s12iii-550-w-80-bronze-certified-atx-power-supply-ssr-550gb3

Another good option... Corsair CXM series : https://pcpartpicker.com/product/3hkwrH/corsair-power-supply-cp9020102na

No love for the CX 550? :c

[starbot]

Thank you to @fasauceome , @Firewrath9 , and @mariushm for your help! I'm in your debt for this extremely helpful information.

[SenKa]

The internet says this works https://www.moddiy.com/products/HP-Z800-Z600-PSU-Main-Power-24-Pin-to-18-plus-10-Pin-Adapter-Cable-30cm.html