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Question about buying a new PSU

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  • Power Supplies
  • Systems
Last response: in Systems
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May 3, 2014 6:10:08 AM

ok so im thinking about buying a new PSU for my computer as got a new GPU and seem to be having power problems.

here is my system specs:

MOBO: ECS P4M900T-M2
CURRENT PSU: Right-Tec Power supply P4-500W (about 6years old)
CPU: Intel Pentium D 3.40GHz
RAM: Kingston 1GB DDR2 667MHz
SATA: 160GB Hard Drive
SATA: DVD/R Drive
IDE: 160GB Hard Drive
GPU: EVGA GeForce GT 610 (300w min)

I found a power supply I think Its compatible for my system I just wanted to get a second opinion as im not 100% sure if this will work for my motherboard before I actually buy it

this is the psu I plan to get: Corsair CX600 600W Builder Series CX Series CX 80+ Bronze ATX Power Supply PSU

this is my motherboard: ECS P4M900T-M2

and also if it is compatible is it be better to upgrade to a 600w from a 500w?

thanks again

More about : question buying psu

a c 723 ) Power supply
May 3, 2014 6:13:04 AM

That PSU is a lot better than your original but the 430watt version would run your rig fine. The card you have will run in a system with a 300watt PSU! May not be the PSU after all.
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May 3, 2014 6:23:10 AM

I only came to that conclusion thinking it was the PSU as I have replaced nearly everything else
its had new ram, new GPU, new CPU + Heatsink

so what PSU do you think I should go for a 500w or 600w? I just want to get my computer running good again

the problem im having is that when I installed my GPU it freezes at loading windows screen but its only the display that freezes as the computer loads up and logs in as I hear the windows sounds

so could this issue not be a PSU problem you think?

it has been wrecking my head for days now when I first put GPU in it was working fine for about 3-4days then I get that problem

il probably still get a PSU anyway just to rule it out
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a c 723 ) Power supply
May 3, 2014 6:34:56 AM

500 or 430 CX Corsiar both are plenty for your rig.
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May 3, 2014 3:51:29 PM

Go into the bios and post the following

+12 Volts: Actual Voltage Here
+5 Volts: Actual Voltage Here
+3.3 Volts: Actual Voltage Here

How old is the motherboard?
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May 4, 2014 1:45:10 AM

ok I did that and this is what I got

+12V : 10.87V
+5V : 4.7V
+3.3V : 3.1V

does that mean it is my PSU? im not quite sure

and the motherboard is from 2008 so it is pretty old

what would you recommend

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Best solution

May 4, 2014 6:08:50 AM

The spec is plus or minus 5%, so all your voltages are on the low side with the +12 Volts being out of spec.

95% of 12 Volts is 11.4 Volts, so 10.87 is below spec.

You can test the +12 Volt reading by using an unused molex connector, using a multimeter the reading from the yellow wire to the black wire should be +12 or in your case +10.87 and the reading from the red wire to the black wire should be +5 or in your case +4.7, then you will know for sure your +12 Volt reading is out of spec.
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