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#21 | |
Grumpy Old Fart
Join Date: Aug 2005
City & State: Phoenix, AZ
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Professional Tech
Posts: 10,630
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![]() Quote:
Most caps fail gradually over a period of time. .
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Mann-Made Global Warming. - We should be more concerned about the Intellectual Climate. - Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind. - Dr Seuss - You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook. - |
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#22 |
Send Doge Memes
Join Date: Aug 2010
City & State: Fairfield, California
My Country: USA
I'm a: Forum Junkie
Posts: 6,354
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![]() Let me rephrase what i meant: a bulged cap is as bad as a leaking cap
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#23 |
Grumpy Old Fart
Join Date: Aug 2005
City & State: Phoenix, AZ
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Professional Tech
Posts: 10,630
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![]() Third time's the charm!
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#24 |
Send Doge Memes
Join Date: Aug 2010
City & State: Fairfield, California
My Country: USA
I'm a: Forum Junkie
Posts: 6,354
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![]() Lol yeah im not real good at explIning stuff esp when i am usingan iphone and want ro make my message as short as possible
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#25 | |
master hoarder
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,860
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![]() Quote:
![]() Stupid jokes aside, only the Bestec ATX-250 12E (and only that model) has the 2-transistor "mobo killer" 5vsb circuit. I think Everell and Severach did a pretty extensive research on that one. |
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#26 |
Badcaps Veteran
Join Date: Jan 2009
City & State: Williamsburg, Virginia
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 1,222
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![]() The Bestec ATX-250 12E is a GREAT power supply. I am still using one in one of my computers. The original 5vsb circuit has some design problems, but adding a small pc board with DM311 pwm chip takes care of that problem. Any glue that has turned brown or black must be removed (because it becomes conductive). And of course, the cheapo capacitors should be replaced. Best of all, you can install a fan on the back side of the power supply case, remove resistor R102, then install fan wires where R102 was. (If fan is too noisy just add a little series resistance in one of the fan leads) When computer is off but plugged into the wall outlet, the added fan will keep everything cool. When you power up the computer, the added fan shuts down and the original fan comes on and continues cooling the power supply. So don't say too many bad words about this really neat power supply!
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Old proverb say.........If you shoot at nothing, you will hit nothing (George Henry 10-14-11) |
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#27 |
Badcaps Veteran
Join Date: Sep 2010
City & State: Jefferson
My Country: LAMBDA SOND
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 1,256
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![]() very impressive! i love it when someone takes a compromised design and turns it into something decent keep up the good work!
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#28 |
Send Doge Memes
Join Date: Aug 2010
City & State: Fairfield, California
My Country: USA
I'm a: Forum Junkie
Posts: 6,354
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![]() Nice job! Did you cut out where the fan is? I suggest you do becuase if the fan has the shove the air thorugjt the little vent slits in the psu casing there will be more noise and lower airflow
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#29 |
Badcaps Veteran
Join Date: Jan 2009
City & State: Williamsburg, Virginia
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 1,222
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![]() I used a nibbler tool to cut out a big hole before mounting the fan. Lots of air flow!
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#30 |
Member
Join Date: Nov 2014
City & State: Sandston
My Country: USA
I'm a: Knowledge Seeker
Posts: 31
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![]() Just chiming in here, I decided to disassemble my 2004 emachine, I don't have the specs with me right here ATM. But it has slowly become slower from what I think it should be. Loading google . com in chrome takes about 30-45 seconds.
I took it all apart and air canned the electronics and washed the plastic parts. It was extremely gross. It has a 300W PSU but again, I didnt think to get a pic. All I took a pic of was the MOBO. The Bestec 300W PSU looked fine. I did notice the CapXon 2 large caps and most of the rest were Jamicon and some black/yellow ones, which looked like a brand I have seen at Radio Shack, looked like it was a 'L' something. This computer has been running for 10 years and of that time, I would leave it running in sleep mode or standby when I wasnt using it, I rarely shut it down. The glue has turned orange brownish. It is hard to tell how the caps are under the bundle of wires coming out of the corner. Just wondering if the clumps of dust is making the computer slower? Everything looking fine with the PSU does that mean it is good? It boots up fine and runs side note, I saw some Sanyo caps on mobo, and they looked odd, it seemed like the caps were about to pop or the stress lines are deeper and more pronounced than say Rubycon. Sanyos were of a 'K' style also. |
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#31 |
Great Sage 齊天大聖
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,848
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![]() start a new thread wih lots of foto's
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