Which of these psus is the safest?

[goodpsusearch]

I have 5 psus available and I 'd like to use 3 of them in the following pcs:

1) Intel(R) Pentium(R) D CPU 2.66GHz (with gigabyte dynamic overclocking goes up to 3.2ghz), 1x512mb ddr533, nvidia 7600GT, hdd sata 80gb 7200rpm, dvd rom & dvd rw , 2x9cm fans
pc working around 10-20 hours per week

2) Intel Pentium 4 1500mhz willamette, 3xSDRAM dimm total 576mb, TNT2M64 32mb agp, 2xhdd ide 7200rpm 80gb & 20gb, dvdrom & cd rw, 1x8cm fan
working less than 10 hours per week

3)Intel Pentium 3 Celeron Tualatin 1300mhz @ 1456mhz, 3xSDRAM dimm total 384mb, ati all in wonder (rage) 128 agp, 2xhdd ide 7200 40gb & 5400 40gb, dvdrom &cd rw, 1x9cm fan & 2x8cm fans
working around 10-20 hours per week

I need help selecting the safest power supply units and the ones that provide adequate power for each system.

The psus are:

1)Premier DR-8400BTX MAX 400WATT weight: 0,820 kg

(photos attached)

[goodpsusearch]

Re: Which of these psus is the safest?

2)LINKWORLD LPQ6-300WP weight:1.743kg

[goodpsusearch]

Re: Which of these psus is the safest?

3)MACRON POWER MPT-301 ATX12V weight:1.444kg

[goodpsusearch]

Re: Which of these psus is the safest?

4)MAXPOWER PL-300 ATX12V PFC weight:1.262kg

What is this green board on top of the heatsinks? Never seen it before in a psu..

[goodpsusearch]

Re: Which of these psus is the safest?

5)CODEGEN 300X ATX2,03(P4) weight:1.097kg

[370forlife]

Re: Which of these psus is the safest?

For the P4 williamette, I would recommend the Marcon after a recap. It looks the most well made, has an actual bridge rectifier and mostly complete input filter.

For the celeron I would recommend the solytech built premier after a recap.

I'm not telling you to use these, more of "if these were the last power supplies left on the planet, these would be the best" you really should get some delta 300W's or something on ebay for about $5 or $10.

As for the Pentium D, none of them. They are all too crappy to trust with something like that.

[goodpsusearch]

Re: Which of these psus is the safest?

Some more info..
Maxpower 300 has a bridge rectifier too (it can be seen a bit at the 3rd photo located on the green board). Still wondering why they put this extra board...
Premier 400 was the psu that came with the Pentium D 2,66 system, and I thought of it as a good one.. a branded psu...

So, from better to worse, how would you rank all of them?

[PCBONEZ]

Re: Which of these psus is the safest?

I wouldn't use any of them without reworking them.
Actually, I just get something else..
But, I dunno how hard that is in Thessaloniki Greece.

Don't assume C2D needs more than a P4.
Depending on the video card, a P4 can easily be much more demanding than a C2D.
A C2D CPU is low power compared to a P4 watts hog CPU.

You need to determine which will pull the most on +12v.

The only PSU there with more than 15 amps on +12v is the DR-8400BTX.
Also looks to be the only one with at least 15 amps and full PI output filters.
Input filter looks to be fine there too.
- Put that on the one that needs the most +12v.

Not sure if 15 amps will be enough for the next most +12v demanding system.
You'll have to figure that out.
If 15 amps is enough then probably the Macron there.

The CODEGEN looks pretty solid [ahem, out of this group...] but it's only 10 amps on +12v.
Don't use that on anything more than a P3.
Seems to have full PI filters output filters and complete input filter.
Probably the best choice for the P3.
.

[370forlife]

Re: Which of these psus is the safest?

The reason I didn't even think of the Maxpower is because I think it is one of the new leadman safety series power supplies with a piggy back transient filter board, which I think is also leadman's poor excuse for PFC. Leadman's are just so poorly designed that this one would probably catch fire or explode before the solytech.

Yup PCBONEZ, the solytech has a 20A schottky on the 12v, and what looks to be a 30A on the 5v, with what looks like another 20A on the 3.3v, with full PI filtering and enough capacitors on the secondary to power a 5v based processor computer, like the celeron, just fine.

The codegen, I don't know about. It uses the same cheap design my 585W orion uses, where it siphons 5v from the transformer and regulates it down to 3.3v with no choke of it's own (why there is only 1 there,) and just sends it straight to the secondary filtering.

[370forlife]

Re: Which of these psus is the safest?

Come to think of it, the linkworld may actually be pretty good too. It has about the same looking secondary silicon as the solytech, has passive pfc, large transformer, some capxon caps, decent heatsinking, thermally controlled fan, and if I recall the "death of a gutless wonder" review on JG took a really gutless 350W linkworld and put it to the load tester, and it would kick in the OCP at around 250W or so, but it did eventually blow up after repeatedly doing this.

Still, a step above most other crappy units with no OCP.

[PCBONEZ]

Re: Which of these psus is the safest?

Did you take that cat to Micheal Jackson's plastic surgeon?
.

[POM_MJ]

Re: Which of these psus is the safest?

I would be select PSU#4 for System#1, PSU#3 for System#2 and PSU#2 for System#3.

the PSU#3 MACRON POWER MPT-301 very need to recaps, CS caps is bad.
see my Enlight VP-300 in this post ==> https://www.badcaps.net/forum/showpo...3&postcount=95
same design and caps brand used, secondary side 5vsb caps had leakaged then caused very damage to other components in 5vsb circuit (two transistors).

[larrymoencurly]

Re: Which of these psus is the safest?

4)MAXPOWER PL-300 ATX12V PFC weight:1.262kg

What is this green board on top of the heatsinks? Never seen it before in a psu..

It's got to be an automatic power factor controller because of the coil in the middle, the 8-pin chip, and the power transistor on the heatsink. But isn't it bad safety practice to have a circuit board straddle the high voltage and low voltage sides of a PSU, at least when better electrical insulation isn't used?

I have an older 300W MaxPower w/o PFC that was included in a Soyo case that Fry's had for free after $30 rebate. It managed to put out 300W during the ten minutes I tested it. The case, fan, and two 560uF 200V HEC caps are the same, but the main circuit board is different (only one choke for all three output voltages).

[PCBONEZ]

Re: Which of these psus is the safest?

Did you take that cat to Micheal Jackson's plastic surgeon?
.

It's the eyebrows man. - They look like MJ's.

[370forlife]

Re: Which of these psus is the safest?

Did you take that cat to Micheal Jackson's plastic surgeon?
.

Lol, I would think paintshop was also a lot of his plastic surgery, so I would say yes.

[goodpsusearch]

Re: Which of these psus is the safest?

Do you think Premier 400 is able to output enough power for the dual core intel 2.66 & nvidia 7600GT system?

I noticed 0,5A mark in every one of the four diodes that are placed instead of the bridge rectifier (see photo). Is that bad or hardly acceptable for a computer that is only used for few hours?

As for the primary caps, macron power has the biggest capacity (680uF) but they need recap and I am searching same type in Thessaloniki's electronic equipment stores with no success...

Maxpower has 560uF, and all others, Linkworld, Codegen and Premier have 330uF. Is this of any significance?

edit: THE FUNNIEST THING is that pentium4 1,5GHZ willamette came with a 250watt linkworld power supply with 10A 12V rating. The psu had only Fuhjyyu caps and 3 of them were bulged, 2 of them 16V and the other 10V. When tested in an old P3 system 12v line was reported at 13,7V!

[goodpsusearch]

Re: Which of these psus is the safest?

capacities and brands:

1)Premier DR-8400BTX MAX 400WATT
2x 330uF 200V yc 85°C
3x 50V 2.2uF Koshin
1x 2.2uF 50V yc
2x 1uF 50V yc
1x 47uF 50V Koshin
1x 10uF 50V Suscon
1x 1000uF 16V yc
1x 1000uF 16V Suscon
1x 470uF 16V yc
2x 1000uF 10V yc
4x 1000uF 10V yc

2)LINKWORLD LPQ6-300WP
2x 330uF 200V 85°C jun fu
1x 220uF 35V capxon
1x 10uF 50V Fuhjyyu 105°C
2x 1uF 50V Capxon
1x 2.2uF 50V Fuhjyyu
2x 100uF 25V SC 105°C
4x 470uF 16V capxon 105°C
2x 1000uF 10V Fuhjyyu 105°C
2x 2200uF Low ESR SC 105°C 10V or 16V

3)MACRON POWER MPT-301 ATX12V
2x 680uF 200V CS 85°C
4x 10uF 50V CS
1x 470uF 25V CS 105°C
3x 1uF 50V jpce 105°C
1x 3300uF 16V 105°C
2x 220uF 16V jpce 105°C
6x 2200 uF 10V CS 105°C

4)MAXPOWER PL-300 ATX12V PFC
2x 560uF 200V HEC 85°C
1X 47uF 50v JPCE
2x 4,7uF 50V jpce 105°C
1x 33uF 16V jpce
1x1000uF 16V CS 105°C
1x 2200uF 10V CS 105°C
3x 470uF 10V CS
green board (pfc):
1x 22uF 400V HEC
1x 4.7uF 50V CS
1x 47uF 50V LOW ESR jpce

5)CODEGEN 300X ATX2,03(P4)
2x 330uF 200V HEC 105°C
3x 47uF 50V HEC
4x 1uf 50V HEC
1x 10uF 50V jamicon
1x 4.7uF 50V HEC
2X 22uF 50v jamicon
1x 1000uF 16V jamicon
2x 470uF 16V jamicon
1x 1000uF 10V jamicon

[PCBONEZ]

Re: Which of these psus is the safest?

You can keep the CapXon.
Fuhjyyu are outright dangerous.
YC aren't far behind Fuhjyyu. [Nor are the others in that PSU.]
All the rest are iffy and most people here would change them.

BTW: Nice work!
Making up those lists can be a pain in the butt.
Most likely will help someone else later on.

[ratdude747]

Re: Which of these psus is the safest?

the premier theme song could be "all the small things" because thats what i see on the heatsinks. the silicon is just too small to be quality. after a recap, i give it a 6 out of 10


the rest i give a thumbs down because if wussy heatsinks. i like that the filter in the macron is good, so it may have hope after a recap for a low powered machine. the rest, i'd scrap for fans, wire, and electronic goodies.


btw, linkworld sucks. i got an abit bh6 box for free, board and hd killed by the fuhjyyu caps. at least i scrapped the psu and and case. the guts were all present (bridge, choke, x/y caps, etc.) but the heatsinks were TINY and the silicon was smaller. small transformers too. that one is in the "gut bin"

[370forlife]

Re: Which of these psus is the safest?

I would say the premier could maybe do 300W if the temp is kept down. If it is anything like my old 350W rosewill solytech built, it has 2 400v, 12A, 20A pulse sanyo primaries.

I would say the marcon probably has the best selection of caps, being CS and CEC international, and is probably the only one capable of it's rated specs.

Still not saying you should use any of them before a recap though.