"Delta Power" MAX-500ATX 450W power supply (not real Delta)

[370forlife]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Really wish I had a oscilloscope so I could revive my sunpro that has no pi filters and try it out.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Sorry to revive an old thread, but I just want to inform people that this rebuilt power supply is still powering the P4 system it was put in just perfectly.

Here are the specs (they changed a little, but it's basically the same PC):
Intel Pentium 4 3.2GHz processor (Prescott, Socket 478)
2GB DDR RAM (1x1GB PC3200 and 1x1GB PC2700 mix 'n match, running at PC2700 speed)
ECS PM800-M2 motherboard
Sapphire ATI Radeon HD3650 512MB DDR2 AGP 8X video card
250GB WD Caviar PATA Hard Drive
Microsoft Windows 7 Ultimate x86 (32-bit)

Just proves that a gutless wonder, rebuilt and upgraded, can reliably power even a power-hungry Prescott P4 system in the long run.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Sorry about reviving my old thread, but I would like to state that the power supply rebuilt in my thread is still fully functioning without issue and has been a powering a PC (I use it to host a private Minecraft server for my friends) on an almost 24/7 basis for the past couple months.

Here are the specs of the PC it is now in:
AMD Athlon 64 X2 3800+ 2.0GHz dual-core processor (Socket AM2)
4GB DDR2-667 RAM (2x2GB)
ASUS A8M2N-LA motherboard (HP OEM board from Pavilion a1700n)
NVIDIA GeForce 6150LE integrated graphics
160GB WD Caviar SE PATA Hard Drive
Microsoft Windows 7 Ultimate SP1 64-bit

This power supply has been in near-regular service since being rebuilt, and so far has lasted over two years. I hope this can prove that some gutless wonders can be improved to work reliably with less-demanding computers with the right components. The only modification I made to it since then was hooking the fan up to the +5V rail to make it run much quieter (for heat concerns, this PSU actually doesn't run hot at all with the basic AMD dual-core setup).

[b700029]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Not really surprising --- your CPU only goes up to 89W max, and you have integrated graphics. Total system power consumption is probably less than 200W at most. This is why they can sell those gutless wonders at 2-3x their actual rating - because most people who buy a "500W" PSU thinking it's cheap and better don't have a system that actually needs anywhere near that much power. With the exception of bad caps, if the PSU is being run below its limits it's not likely to fail.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Not really surprising --- your CPU only goes up to 89W max, and you have integrated graphics. Total system power consumption is probably less than 200W at most. This is why they can sell those gutless wonders at 2-3x their actual rating - because most people who buy a "500W" PSU thinking it's cheap and better don't have a system that actually needs anywhere near that much power. With the exception of bad caps, if the PSU is being run below its limits it's not likely to fail.

I referred to my setup that this PSU is in as "basic" and "less demanding", so yes it isn't suprising at all that my rebuilt PSU has been working well. And since I replaced every capacitor in it (even the small ones of values less than 10uf) with Panasonic and Nichicon replacements, bad caps shouldn't be an issue for it.

This PSU was also able to power a Radeon HD3650 graphics card (a simple mid-range card in its day) along with a Pentium 4 3.2GHz Prescott processor (which was power-hungry when it was the latest thing) in its last system, which I would believe would be typical in power consumption for mid-range PCs today.

Some of these gutless wonders that I've seen and read about even struggle to just supply 200W to somewhere below 300W reliably, so I think after looking at all that and seeing how my rebuilt PC is able to power mid-range PCs including a Prescott P4 in the long run, I believe that I've improved my PSU through the numerous upgrades I did to it to make it more reliable and last longer.

[momaka]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Sorry about reviving my old thread, but I would like to state that the power supply rebuilt in my thread is still fully functioning without issue and has been a powering a PC (I use it to host a private Minecraft server for my friends) on an almost 24/7 basis for the past couple months.

Nice!
I actually had to go back to page 1 and re-read it to see what was done to the power supply... it's been in service for such a long time now that I've forgotten. Looks good. I bet that if the caps and fan weren't replaced, this thing would have been dead by now (or at least very unstable).

[b700029]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

This PSU was also able to power a Radeon HD3650 graphics card (a simple mid-range card in its day) along with a Pentium 4 3.2GHz Prescott processor (which was power-hungry when it was the latest thing) in its last system, which I would believe would be typical in power consumption for mid-range PCs today.

An HD3650 takes about 63W at full load, and depending on which Prescott that was, between 84W and 103W. Adding the power consumption of everything else still brings the total to <200W.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

An HD3650 takes about 63W at full load, and depending on which Prescott that was, between 84W and 103W. Adding the power consumption of everything else still brings the total to <200W.

I already do understand that these systems are not power-hungry, but with this being power supply formerly being an empty gutless wonder with cheap parts before being rebuilt, I feel that with it being able to reliably power both Prescott P4 and Athlon 64 X2 systems in the long run proves that gutless wonders can be made reliable for long-term use in less-demanding applications.

This power supply could probably have powered up and ran those two systems it was in without any of my upgrades, but it probably wouldn't have lasted so long like momaka was saying.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Sorry to again revive this thread, but I want to ask do you people think that this Delta Power 450W would be good enough to reliably power a GeForce 9600GT graphics card?

I recently ordered a refurbished PNY 9600GT 1GB from Newegg.ca (was on for $39.99 with free shipping at the time, so couldn't resist) for the PC that this PSU is currently powering and would like to know. I ordered a 4-pin peripheral to 6-pin PCI-E adapter as well from Dealextreme.

Here are the specs of the PC that this rebuilt Delta Power 450W is powering (CPU has been upgraded since last posting):
AMD Athlon 64 X2 4600+ 2.4GHz EE dual-core processor (Socket AM2, 65W TDP Windsor)
4GB DDR2-667 RAM (2x2GB)
ASUS A8M2N-LA motherboard (HP NodusM3 OEM board from Pavilion a1700n)
NVIDIA GeForce 6150LE integrated graphics
160GB WD Caviar SE PATA Hard Drive
Microsoft Windows 7 Ultimate SP1 64-bit

[c_hegge]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

My guess is that you probably have about 300-350W to play with there. It might work, but it might not.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

My guess is that you probably have about 300-350W to play with there. It might work, but it might not.

I guess I'll have to cross my fingers before I press the power button when the 9600GT comes...

Do you think it would be better to use this rebuilt Delta Power 450W to power the 9600GT, or my new POWER PC 350W?

[c_hegge]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

I wouldn't trust either, but the Power PC would probably have a better chance.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

I wouldn't trust either, but the Power PC would probably have a better chance.

I almost forgot that I had a not-gutless Antec Neo ECO 400C power supply leftover from my PSU replacement the other day in my primary PC, so I'll use that instead of either my Delta Power and POWER PC gutless wonders, after I replace the Su'scon caps in the Antec with new Panasonic and Nichicon caps that I have coming to me in the near future from Digi-key.

I hope I'll be able to cram its super long wires (suitable for a full tower case) into the little HP Pavilion a1700n case that my Athlon 64 X2 4600+ build is in...

[momaka]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

Sorry to again revive this thread, but I want to ask do you people think that this Delta Power 450W would be good enough to reliably power a GeForce 9600GT graphics card?

The Athlon 64 X2 4600+ is a 89 Watt TDP CPU and the GeForce 9600GT is either 59 or 96 Watts TDP. Assuming you have the 96 Watt card, that's 185 Watts on the 12V rail minimum when the system is under full load. Let's round it to 250 Watts to account for the hard drives, fans, and any power wasted by the VRMs as heat - that gives you about 21 Amps power consumption on the 12V rail under full load.

You have a 30A schottky rectifier for the 12V and the primary side has 13009 BJTs (should be able to do 350 W if the driving circuit is built right), so I think the Delta Power will be able to power that computer with the 9600GT. As for the longevity/reliability, I'm not so sure about that. Judging by the thin heatsinks seen in the picture on page 1, it might overheat or just run too hot and cook the caps. Or it might not, I'm not sure. If the PSU case feels warm-to-hot under load, it's definitely overheating.

[Newbie2]

Re: "Delta Power" MAX-500ATX 450W power supply (not real Delta)

The Athlon 64 X2 4600+ is a 89 Watt TDP CPU and the GeForce 9600GT is either 59 or 96 Watts TDP. Assuming you have the 96 Watt card, that's 185 Watts on the 12V rail minimum when the system is under full load. Let's round it to 250 Watts to account for the hard drives, fans, and any power wasted by the VRMs as heat - that gives you about 21 Amps power consumption on the 12V rail under full load.

You have a 30A schottky rectifier for the 12V and the primary side has 13009 BJTs (should be able to do 350 W if the driving circuit is built right), so I think the Delta Power will be able to power that computer with the 9600GT. As for the longevity/reliability, I'm not so sure about that. Judging by the thin heatsinks seen in the picture on page 1, it might overheat or just run too hot and cook the caps. Or it might not, I'm not sure. If the PSU case feels warm-to-hot under load, it's definitely overheating.

Thank you for your informative post momaka. My 4600+ is an ADO4600IAA5CU part and actually consumes just 65W, as it was one of the energy-efficient models that AMD made of the 90nm Windsor-based Athlon 64 X2 processors. The GeForce 9600GT I ordered is the 96W model, as it does require the use of the 6-pin PCI-E power connector.

I've decided not to gamble over whether my Delta Power 450W can reliably run the increased load of the 9600GT graphics card in the long-run, so I will soon recap my Antec Neo ECO 400C 400W PSU (Seasonic S12II based) and use that to power this PC.