Urgent HELP WITH PSU!!!

[muhammad_32]

hi there. i ve
r7250 1gb ddr5 HIS icooler iturbo .
my cpu is e8400 core 2 duo
motherboard = s975xbx2
ram = 2gb( will upgrade to 4gb)
hdd = 120gb SATA + 40 gb IDE
DVD Drive = None
PSU = ATX switching 400w having 15 amps on +12 rail
PSU i need help with is = 300 ( there is one with 350 watts) both having 25 amps on +12 rail.
i wanna know is it enough for my specs??i cant buy any other PSU cz its hard getting an 20 +8 pin power supply here. i dont wanna buy online.
the card gives greens horizontal lines from bios to windows startup and so on with my current PSU and also drivers not responding with latest drivers.


BUT

i gave the card to my friend who has 1200w PSU and the card works fine.
now i know its the PSU problem . plz help me whether or not will the 300 or 350 watts supply with 25 amps on +12v rail run all my specs??
also plz tell me how much power will all my specs draw totally and individually.individually. Thank you All ...

 

[DonkeyOatie]

Hi.

If the PSU does what it says and delivers 12V at 25A and the temperatures you have, then you will get the 300W you want. 12 x 25 = 300. Cheap PSUs are often tested at 25C and deliver less power at 35C (a very likely temperature inside a case in a hot climate).

Most modern PSUs are capable of delivering almost all of their Wattage on the 12V rail. That's where the power needs to be. Older PSUs often deliver a lot on the 3V and 5V rails because that's what older computers needed. Your old 400W PSU was an example. It delivers only 180W of its supposed 400 on the 12V rail. The rest is probably on 3V or 5V where it is not use to you today.

The 250 is a low power use GPU at about 65W, so that and the rest of your system will run on a good PSU that delivers 300W on the 12V rail, your whole system will not draw over 200W.

Without you telling me specific brands or what the specifications on the box say about power delivery, all this advice is general.

 

[muhammad_32]

ok this is the power supply i am talking about.
http://archive.kaskus.co.id/thread/3087080/
plz reply quick.

 

[DonkeyOatie]

That 350W PSU is another example of an older model with lots of power on rails you do not need. It looks like it is used. The older PSUs get, the less likely that they are to reach specification, especially when they are older, suspect models to start with.

Giving you good advice is hard when I don't understand your circumstances. I would not buy that PSU or recommend it to others, but if it is your only choice, it is better than nothing and better than what you have. It lacks a PCI-e power connector so you will not be able to upgrade your GPU past a 65W 250 or the equivalent NVidia GTX750ti.

 

[muhammad_32]

thanx for the reply but right now i just want to use this card and nothing else. i will ofcourse change it and the PSU to crossair vs one as soon i save enough uknow...
so will i be able to play with this psu and specs untill then??

 

[DonkeyOatie]

If it is in good condition and provides the 300W it says it will. I have no personal experience of that PSU.

 

[muhammad_32]

ok thanx. first i ll check with fx5200 plugged in than replace with r7250. i ll be sure to reply with the result.

 

[muhammad_32]

ok i checked the card with that power supply still the same artifacts.

 

[DonkeyOatie]

Then the problem might be with the card itself even so. If it works on a much more powerful system then the PSU we were discussing my not be delivering as much as it says it does.

 

[muhammad_32]

ok now ive also got a gtx 460 1024 mb gddr5 pci E 2.0 what would that card need??

 

[DonkeyOatie]

The GPU, GTX 460, uses about 150W. Why are you using all of these old GPUs with limited modern support? These obsolete GPUs may have issues dues to age. What shop is selling them to you?

 

[muhammad_32]

i got these for free from a friend and were playing far cry 4 on high sooo??

 

[DonkeyOatie]

Free GPUs. Nice friends!
Does your PSU have the PCI-e power connector required to run that GPU? You now need something around 430W.

 

[muhammad_32]

haha yeah friends like brothers over here.and is there any way i can fix the r7250

and no there is no pci e power connector which is another headache here...

 

[DonkeyOatie]

You will need to use Molex adaptors then.

http://www.tomshardware.com/answers/id-1810844/quick-question-dual-molex-pcie-pin-adapters.html
http://www.tomshardware.com/answers/id-1784418/molex-cable-converter-pin-pcie-radeon-6770.html
https://bitcointalk.org/index.php?topic=51740.0

 

[muhammad_32]

ok now this is the pins image
http://tinypic.com/r/2gv6jw6/9
.in my power supply there are 20 pin and two 4-4 pin connecters which all fit in two places in the motherboard.
where do i find pins for this card and these are 6 pins two slots. how do i do that i dont know anything about that.

 

[DonkeyOatie]

A power supply intended to drive high-performance GPUs will come with one or more PCIe 6, 6+2 or 8 pin connectors. You need two 6 pin connectors for that card.

 

[muhammad_32]

hi there. sorry for bieng late( i mean verrryyyy late). so i ve got this PSU for the gtx 460 1gb ddr5 is it enough now??plz reply quick cause i wanna install it in the morning .plz quick reply.
http://tinypic.com/r/w12r2a/9

 

[muhammad_32]

nd this is my system wattage calculator result. Ram is gonna be 4 gb tomorrow though.
http://tinypic.com/r/nla786/9

 

[DonkeyOatie]

The Keian S550W PSU you have selected has 2 x 6+2 pin PCIe connectors so it can drive that GPU.