I am confused in molex connection

pawarvinay47 · Mar 20, 2014

I am confused in molex connection i have intex 450watt smps and it is provided with 2 molex but 1 of molex is connected with cd rom & another 1 is free. I want to convert 4 pin molex to 6 pin but difficulty is i have only one free molex...............can i use this type connector to split power for graphics http://

4745454b · Mar 20, 2014

Do you have SATA plugs? You might be able to use those.

Honestly I tell people not to do this. If your "450W" PSU wanted you to power a card needing a 6pin PCIe plug they would have included one. You wouldn't need to use an adapter. My 450W PSU comes with two 6+2 PCIe plugs. You probably need a different PSU, not an adapter.

gamer2321 · Mar 20, 2014

http://www.ebay.com/bhp/4-pin-to-6-pin-adapter
You should use an adapter like this, almost any computer shop or repair center will have it for under 5$

pawarvinay47 · Mar 20, 2014

4745454b :

my cd rom is connected with molex to sata

mickypheonix · Mar 20, 2014

sorry is late i misread that am getting tired

cst1992 · Mar 20, 2014

I agree with 4745454b.
Intex is a local power supply brand, and almost all local brands make cheap power supplies.
If possible, get a good power supply.
However, if you have a card with a ~60W TDP such as a GTX650, then probably it'll work, but don't connect cards with ~100W TDP.

@4745454b Why does your power supply have 2 6+2pin plugs? Is it a high-efficiency PSU(such as a Corsair RM450)?

pawarvinay47 · Mar 20, 2014

gamer2321 :

but my problem is if i connect 2 molex in 6 pin then my cd rom is not connected with power

cst1992 · Mar 20, 2014

That's a single molex adapter; not a double one.

4745454b · Mar 20, 2014

Problem is a single molex isn't rated to handle 75W. Which is why we got PCIe plugs in the first place.

my cd rom is connected with molex to sata

I thought you said your CD rom is connected with a molex plug? Do you have SATA plugs? If you really have a 450W PSU with no sata plugs, and only 3 molex plugs (has to be a third somewhere to power your hdd.) then you need a new one. The first 450W PSU I bought 10+ yrs ago had a SATA plug on it.

@4745454b Why does your power supply have 2 6+2pin plugs? Is it a high-efficiency PSU(such as a Corsair RM450)?

Rosewill Capstone 450W. 80+ gold, 7yr warranty, great PSU. Powers my 3570K and 7950 with no problems. With the new platinum units coming out the Gold units are finally falling to where most can get them. There are now a few/lot of 450-650W gold PSUs ranging anywhere from $60-80. Very little reason to get a 550W 80 bronze for $50 if you can get a 450W 80 gold (which should have nearly the same power output at better efficiency numbers) for $60.

cst1992 · Mar 20, 2014

That's good to know. Too bad Rosewill isn't available in India.
Just checked on newegg. $59.99 and $10 less if you have a rebate card.
Puts out 37A on the +12V rail which is almost the entire wattage of the PSU.

pawarvinay47 · Mar 20, 2014

cst1992 :

i have this psu http://

4745454b · Mar 20, 2014

Yeah, my old Antec EA500W only did 34A on the 12V rails and didn't have any 8pin plugs. These are great units and the 7yr warranty should tell you what they think of them. If the failure rate was going to be high, they would have had 2-5yr at best. Back when I bought my PSU the only cheap options were the capstone series and the FSP aurum line. I ruled that one out as they don't always have an MOV in the input stage. Others are finally joining them and it won't be long before bronze units will be the bottom of the barrel units and gold/plat will be where its at.

4745454b · Mar 20, 2014

I stand by what I said. If you have a 450W PSU with only two molex plugs and two sata plugs, you need a new PSU. Not an adapter to let you try to power a real GPU.

pawarvinay47 · Mar 20, 2014

4745454b :

if i use internal power graphics card like r7 240 ang gt 640 .......then it will work or not....on this psu.

4745454b · Mar 20, 2014

Those don't need a power plug, so they'd probably be ok. Not good gaming cards, but not horrible cards either.

cst1992 · Mar 20, 2014

However, the question is not just whether the components can be powered by the power supply or not.
Quality of power is also a factor. You don't want your power supply and some other component shorting out and burning because of a power surge, or the power supply failing because of a power failure. Quality of power also translates to higher efficiency, lower temperatures, higher life of your components, and in some cases, quiet operation(due to lower electrical noise getting in your speakers).

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