Combining multiple PSU

[你猜你猜你猜猜猜]

Currently, high wattage psu is expensive. I thinking of combine 2 or more power supply so as to reduce cost and at the same time increase the max wattage that a system can use.

Is there DIY way? OTher than so far the commercial add2psu but it is expensive and yet to confirm whether can be use on 230v psu.

 

[zetken]

i think u can. just need this for the 24pin. all good to go.

 

[Jian19]

Later sexplode

Wads ur rig serp ?

 

[jtjt00]

Casing can fix 2 standard PSU?

 

[你猜你猜你猜猜猜]

i think u can. just need this for the 24pin. all good to go.

Oh, Great. Thanks for the reply. Now need to find this item.

Later sexplode

Wads ur rig serp ?

I thinking to connect 3 R9 280x using my current aerocool strike x 1100w , max w on 12v rail is 1080w. Based online calculation, it seems to exceed the limit of the psu. So i thinking of other alternatives other than getting higher wattage psu. Also SLS shortage of high wattage psu and also the price is a concern.

 

[Mycrus]

Ghetto way to do is permanently ground 2nd PSu and use PSu on button.... connector shown is a more elegant solution.... do you have 2nd PSu slot for your case?

 

[devilwahaha]

Casing can fix 2 standard PSU?

Casings that fits 2 ATX PSU's are almost exclusively only those Godzilla-sized cases like

- Cooler Master HAF 932 (and the advanced model)
- Cooler Master ATCS 840
- Lian-Li PC-A70, PC-A7010, PC-A70F
- Lian-Li PC-A71, PC-A7110, PC-A71F
- Lian-Li PC-A77 - NOT the PC-A77F
- Lian-Li PC-B70
- Lian-Li PC-B71
- Lian-Li PC-V2010
- Lian-Li PC-V2110
- Silverstone Temjin TJ07
- Silverstone Temjin TJ11
- Silverstone Temjin TJ12

Although you can really save almost a hundred or more by combining PSU's to hit a kW compared to buying a good kW PSU, the extra trouble and added risks really makes it a silly idea unless you're really hardcore about saving that bit of money, which is really ironic if you're planning to run a kW or more worth of parts in your rig.

 

[Cerano]

Casings that fits 2 ATX PSU's are almost exclusively only those Godzilla-sized cases like

- Cooler Master HAF 932 (and the advanced model)
- Cooler Master ATCS 840
- Lian-Li PC-A70, PC-A7010, PC-A70F
- Lian-Li PC-A71, PC-A7110, PC-A71F
- Lian-Li PC-A77 - NOT the PC-A77F
- Lian-Li PC-B70
- Lian-Li PC-B71
- Lian-Li PC-V2010
- Lian-Li PC-V2110
- Silverstone Temjin TJ07
- Silverstone Temjin TJ11
- Silverstone Temjin TJ12

Although you can really save almost a hundred or more by combining PSU's to hit a kW compared to buying a good kW PSU, the extra trouble and added risks really makes it a silly idea unless you're really hardcore about saving that bit of money, which is really ironic if you're planning to run a kW or more worth of parts in your rig.

once again the devil strikes

but its true la dont be penny wise pound foolish. knn if you need so much power means you're running damn hardcore parts. in hifi and audio power is the impt factor. no power no matter how solid your parts also no go

 

[你猜你猜你猜猜猜]

I run in open air, as casing is too hot for it to handle.

 

[Jian19]

3 x 280x on 1100w should be ok wad...I see ppl run 290x x 3 on 1200w no issue leh..

 

[Jian19]

U mining ah ? Try under volt ur cards should be ok

 

[devilwahaha]

I run in open air, as casing is too hot for it to handle.

If you're mining, then go ahead as the main objective is to make as much money as possible while spending as little as you can. However if you're building a gaming rig, I would suggest a single PSU instead.

Although running PSU's in parallel like this might reduce the efficiency a bit, but for capital cost vs expenses cost, two decent 500w PSU is still far greatly cheaper than a single 1kW+ PSU(friggin hell I just checked they go for as much as $400?!).

 

[你猜你猜你猜猜猜]

U mining ah ? Try under volt ur cards should be ok

What is mining? I doing video and grahics rendering. Currently I have 1 R9 280x and the other 2 were given to me during my birthday. So now i have 3 cards, I don't want to sell it as i saw many complains on seller and buyers issues that freak me in selling my extra cards.

Since i have the extra cards, I shall made full use for my own video and grahics rendering.

 

[Jian19]

Does 3 cards help that much ? I suggest u sell 1 better...

 

[zetken]

go ebay can get cheap cheap for that connector. but need to wait for 3 weeks for it to arrive. otherwise if u know how to solder. just solder in the green black line.

 

[你猜你猜你猜猜猜]

What would be a good software to undervolt the cards ?

 

[你猜你猜你猜猜猜]

Does 3 cards help that much ? I suggest u sell 1 better...

my apologies, i have my concerns of not selling.

 

[Jian19]

Just sell on bazaar if u local, got warranty should not have issues wad...

 

[gaoxing84]

sell la. meet up, pass the item, get the cash.
bam, done.

what issue will you have? haha shy to meet buyer ah?
if you sell cheap, people go your place of convenience to collect also can if you scare ppl put you aeroplane.

 

[你猜你猜你猜猜猜]

Solved by undervolt and all 3 cards run happily. Thanks for everyone's suggestion.