Unbranded "Titan" power supply

[luke10050]

hey guys, i would like your thoughts on this psu, i got it from someone along with a graphics card (a 4870!!! GV-R487D5-1GD has a zalman cooler!) and anyway, the power supply looks pretty suspect, its rated for 1kw but im not too sure. any guesses at what it can actually supply? anyway, heres the pictures

[c_hegge]

Re: Unbranded "Titan" power supply

The design looks capable of 400W, but it will depend on what the silicon is. Definitely not a 1KW.

[luke10050]

Re: Unbranded "Titan" power supply

thats what i thought... doesnt look much better than my 600W coolermaster that is really a 450W thats currently powering my pc...

[370forlife]

Re: Unbranded "Titan" power supply

A Golden Tiger unit. Probably good for about 400W. Can probably go higher but the ripple and voltage regulation may suffer.

[kaboom]

Re: Unbranded "Titan" power supply

Nice passive PFC "choke," it compliments the BH caps...

[WB7ODYFred]

Re: Unbranded "Titan" 1000W power supply

I was curious to compare Rated specs to Gross Watt input numbers.
I think the two 12 Volt output sections are rated too HIGH at 27/29 amps.

Voltage Current Power Notes
3.3 36 118.8
5 37 185
12 27 324 12V1
12 29 348 12V2
12 0.8 9.6 minus 12V
5 3 15 5V Stand By
Total 1000.4 Max Output Power. Yes I now see where this number is calculated for the Titan.

240 6 1440 Total Input Power
1000 1440 69% Power Efficiency (means needs 440 Watts of cooling power!!)

OR

240 5 1200 Total Input Power
1000 1200 83% Power Efficiency (means needs 200 Watts of cooling power!!)


12 10 120 240 two 12V sections 672W down to a mere 240W (432W reduction. 1000 - 432 = 568W

The above are SWAG generated values. I don't believe all power outputs are MAXED out at the same time. Maybe 12V1 and 12V2 are only 10 Amps each or less. 12V x 10A x2 = 240W total on the two 12V sections at 10Amps each?? How much 12V power per Disk Drive is needed?

Wb7odyFred SWAG = (Scientific Wild Ass Guess)
How Much 12V current is needed for each output section 12V1 & 12V2
only 10 Amp per section or the fully rated 27/29 Amps per section.

If you draw the rated +12V current of 27/29 Amps, what happens to the +5V output at 30 Amps. Does the voltage rise on the 5V output, or does the +12V output droop/lower as the current increases?

Just questions I am posing with no firm answer. I have attached an excel file you can change your own values with to play with the numbers.
What do you think the real sustainable current output numbers are for the 4 major outputs.
3.3V
5V
12V1
12V2

[Pentium4]

Re: Unbranded "Titan" power supply

Interesting PSU, thanks for sharing. I would recap it...And they used a nice fan at least, Muhua makes good fans. I doubt those zwcon input caps are actually 1000uF.

How many Amps is the bridge rectifier and what are the specs of the silicon?