Badcaps.net Forum
Go Back   Badcaps Forums > General Topics > General Capacitor Questions & Issues
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 05-14-2014, 08:28 PM   #21
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,236
Default Re: Teapo capacitor quality

in hot country's or 24/7 builds,
you want the psu fan doing what it's designed to do - move a lot of air.
non of that wisper/thermal management shit - it's a psu killer.
take the fan out and hook it to 12v - if it feels like it moves a lot of air - use it.
if not ( most of the cheap 120/140mm fans are junk) then put something better in.

antec have ball-bearings and good flow rate if yur buying from a computer place,
or salvage a delta or a papst or some other decent fan from something else!

Last edited by stj; 05-14-2014 at 08:31 PM..
stj is offline   Reply With Quote
Old 05-14-2014, 08:52 PM   #22
c_hegge
Badcaps Veteran
 
c_hegge's Avatar
 
Join Date: Sep 2009
City & State: North Coast, NSW
My Country: Australia
Line Voltage: 240V 50Hz
I'm a: Professional Tech
Posts: 5,052
Default Re: Teapo capacitor quality

^
There's no way in the world I would do that. I hate fan noise, and if a PSU needs the fan to be running at maximum speed, then you're doing it wrong. Any decent PSU should be able to last 10+ years of heavy use with the fan staying silent
__________________
I love putting bad caps and flat batteries in fire and watching them explode!!

No wonder it doesn't work! You installed the jumper wires backwards

Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

Last edited by c_hegge; 05-14-2014 at 08:55 PM..
c_hegge is offline   Reply With Quote
Old 05-14-2014, 09:03 PM   #23
Wester547
-
 
Join Date: Nov 2011
City & State: CA.
My Country: USA.
Line Voltage: 120-125VAC 60Hz.
I'm a: Knowledge Seeker
Posts: 1,212
Default Re: Teapo capacitor quality

Quote:
Originally Posted by stj View Post
in hot country's or 24/7 builds,
you want the psu fan doing what it's designed to do - move a lot of air.
non of that wisper/thermal management shit - it's a psu killer.
take the fan out and hook it to 12v - if it feels like it moves a lot of air - use it.
if not ( most of the cheap 120/140mm fans are junk) then put something better in.
More airflow isn't necessarily better. Think about the increase in dust accumulation with that amount of airflow over the years and how easy it would be for dust to amass and get "trapped" in between the heatsink fins, nullifying the point of more airflow to begin with (I know it's easy to occasionally clean the PSU, and that filters can allay that problem, but still). I think it's much more important to make sure the existing airflow is properly cooling the power supply (keeping certain that there's ample room for airflow, trying to avoid having wires and large inductors blocking airflow to the secondary, making sure the passage of airflow is as straight as possible to avoid hot spots, etc). Bottom mounted 120mm/140mm fans aren't necessarily better than traditionally mounted 80mm fans. The larger fans suffer greatly in terms of static air pressure and much of the airflow has to be either blocked or redirected 90 degrees.

As for Teapo's capacitor quality... I have been among the fortunate and have not seen that many failures from them myself, but given the amount of failures I've read from others, I'd say Teapo capacitors are terrible, like any other 'mediocre' Taiwanese brand. Of course, no 'lytic lasts forever and heat is the ultimate enemy of even Japanese lytics, especially aqueous ones.

EDIT: Momaka observed that Teapo SZ fail very very often on motherboards. I doubt they're reliable by any stretch of the word.

Last edited by Wester547; 05-14-2014 at 10:07 PM..
Wester547 is offline   Reply With Quote
Old 05-14-2014, 09:26 PM   #24
Pentium4
CapXon Be Gone
 
Pentium4's Avatar
 
Join Date: Sep 2011
City & State: WA State
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 3,163
Default Re: Teapo capacitor quality

Quote:
in hot country's or 24/7 builds
24/7 is better for PSU's, especially the cheap ones with really hot 2 transistor stand by
__________________
Buy quality, and you only cry once
Pentium4 is offline   Reply With Quote
Old 05-14-2014, 09:46 PM   #25
mockingbird
Badcaps Veteran
 
mockingbird's Avatar
 
Join Date: Dec 2008
Posts: 4,856
Default Re: Teapo capacitor quality

Quote:
Originally Posted by mockingbird View Post
I have been looking at quite a few FSP units (SPI "ATX-350-PN") from systems that are a few years old... They use all Teapo caps, some low-ESR "SC" series and some general purpose... So far, they all exhibit the same two bloated +5VSB Teapo "SC" caps (Which is probably because of overstressing, not lack of quality). None of the other Teapos are ever bloated (I re-cap them all anyways), and I would be very curious to check them if they are indeed in spec...

So I suspect that Teapo are generally OK in PSUs... I've even seen Compaq P4 towers that have Teapos scattered throughout, they seem to do ok as long as they're not in the VRM, and they don't arbitrarily bloat like KZG/TK/OST caps do.
Just an addendum, since this thread has been resurrected... On certain FSP models (FSP300-60THN), instead of two 1000uF Teapo SC caps on the 5VSB, there is one 1000uF SC and one 1500uF SZ... In these supplies, the 5VSB does not fail because neither the SZ nor the SC bloat (Whereas where there are two SC caps, failure is imminent).

SZ is similar enough to Nichicon HM to be used on CPU VRMs. I wonder if they were/are a reliable series.
__________________
...Their plight, in fact is even worse, they don't realize that they're cantonists, they think they're free men. What a slavery that is - to confuse slavery for light, and bitter darkness for bright light.
-Rabbi Menachem Mendel Schneersohn
mockingbird is offline   Reply With Quote
Old 05-14-2014, 10:00 PM   #26
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 20,236
Default Re: Teapo capacitor quality

Quote:
Originally Posted by Wester547 View Post
More airflow isn't necessarily better. Think about the increase in dust accumulation with that amount of airflow over the years
there is no dust in a machine designed for 24/7 use.
you presurise the case with more fans pushing in than sucking out and fit filters on them.

i have lost track of the number of dead machines i'v fixed because they didnt use filters & the cpu heatsink got clogged-up.
stj is offline   Reply With Quote
Old 05-15-2014, 10:16 PM   #27
BigTroll
Badcaps Veteran
 
BigTroll's Avatar
 
Join Date: Sep 2010
City & State: Jefferson
My Country: LAMBDA SOND
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 505
Default Re: Teapo capacitor quality

Quote:
Originally Posted by capacitorguy View Post
I had good experince with Teapo capacitors I wont say they are excellent but in my friends old computer had teapo caps he had the system running much of the day for 8 or so years before the motherboard chipset went bad, I have the PSU (HIPRO) running in my computer now which is going well... nowdays he has another machine it has a coolermaster unit it is running windows 7 it was one of the last windows 7 stock machines before they went to 8 and i used the rest of his old system for parts. but still those caps just keep on going they could die tomorrow or they could die in 5 years or keep on ticking longer... then again im using it for daily internet and using a old AMD athalon 64 which is well for internet so light load will be fine on the thing
yeah teapo is like wal-marts great value brand, you get great value.
__________________
My Computer: AMD Ryzen 7 2700X, Asrock X370 Killer SLI/AC, 16GB Geil EVO X DDR4 3000, 500GB WD Black NVME and 2TB Toshiba HD,EVGA GTX 1080 SC, In-Win 303 White, EVGA SuperNova 750 G3, Windows 10 Pro
BigTroll is online now   Reply With Quote
Old 05-15-2014, 10:38 PM   #28
mockingbird
Badcaps Veteran
 
mockingbird's Avatar
 
Join Date: Dec 2008
Posts: 4,856
Default Re: Teapo capacitor quality

Quote:
Originally Posted by BigTroll View Post
yeah teapo is like wal-marts great value brand, you get great value.
Hey, don't knock Great Value. We get their soda crackers imported from you guys to Canadian Wal-Mart and they are much better than Canadian soda crackers.
mockingbird is offline   Reply With Quote
Old 05-21-2014, 09:14 PM   #29
BigTroll
Badcaps Veteran
 
BigTroll's Avatar
 
Join Date: Sep 2010
City & State: Jefferson
My Country: LAMBDA SOND
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 505
Default Re: Teapo capacitor quality

got a 1982 4 switch atari 2600 and it has all original old school teapos in it, runs like a champ!
BigTroll is online now   Reply With Quote
Old 05-22-2014, 02:35 AM   #30
Heihachi_73
Badcaps Veteran
 
Join Date: Jun 2012
City & State: Melbourne
My Country: Australia
Line Voltage: 240VAC 50Hz
I'm a: Knowledge Seeker
Posts: 582
Default Re: Teapo capacitor quality

My 1984 Atari 2600 (PAL) has Wang's caps (enter penile jokes here). The board is stamped 1 JUL 1983, but the chips are later, one being from 1984. Not only that, they are socketed rather than soldered straight to the PCB. Not a surface mount component to be seen!

Unfortunately this console doesn't want to work properly (you'll find this machine on one of my early YouTube videos).

C21: 4.7F 35V -> [in circuit]
C243: Wang's 2200F 16V -> 2519F, 0.04Ω

That's all of them on the entire board (I didn't bother opening the RF modulator section, as that would require desoldering).

I also got a low battery warning on my ESR70 just then and it turned itself off!
Code:
** WarninΩ **
█ Low Battery █
Sure enough, the battery is now 9.87V. One original GP Ultra 23AE removed. I might try to zap this one back to life as they aren't that cheap, although alkaline batteries aren't supposed to be recharged (it never hurt any of my AA Duracells and Energizers I did over the years though).
Heihachi_73 is offline   Reply With Quote
Old 06-16-2014, 03:28 PM   #31
CapSwapper
Member
 
Join Date: Feb 2014
City & State: CA
My Country: USA
I'm a: Knowledge Seeker
Posts: 65
Default Re: Teapo capacitor quality

Teapos aren't good for longevity. I'd say 5 years absolute maximum. I had a project where I had to replace hundreds of bad caps in psu's of cable boxes and all the bad ones were Teapos. the company was so cheap they gave us another cheap junk cap for the replacements. The cable company was Comcast
CapSwapper is offline   Reply With Quote
Old 06-16-2014, 03:42 PM   #32
linuxguru
Badcaps Veteran
 
Join Date: Apr 2005
Posts: 1,208
Default Re: Teapo capacitor quality

Quote:
Originally Posted by Pentium4 View Post
With a lot more experience now, I can say that probably 15-20% of the Teapo caps I have encountered that failed, failed without showing any visible symptoms.
Yup, they often dry out or out-gas through the bottom bung, similar to G-Luxon. I've seen a fair number of failed Green/Gold Teapo SCs without any visible bulge - mostly from mobos. It's best to replace all Teapos on VRMs and Vcore rails at sight.
linuxguru is offline   Reply With Quote
Old 06-16-2014, 03:58 PM   #33
Agent24
I see dead caps
 
Agent24's Avatar
 
Join Date: Oct 2007
City & State: Hiding inside a plated-through hole
My Country: New Zealand
Line Voltage: 230VAC 50Hz
I'm a: Hobbyist Tech
Posts: 4,550
Default Re: Teapo capacitor quality

Quote:
Originally Posted by CapSwapper View Post
I had a project where I had to replace hundreds of bad caps in psu's of cable boxes and all the bad ones were Teapos. the company was so cheap they gave us another cheap junk cap for the replacements.
Stupid, but not surprising. What did they use for replacements?
__________________
"Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
-David VanHorn
Agent24 is offline   Reply With Quote
Old 06-16-2014, 08:51 PM   #34
RJARRRPCGP
Badcaps Veteran
 
Join Date: Jul 2004
City & State: North Springfield, Vermont
My Country: USA
Line Voltage: 123-127V 61.5-63.5 Hz
I'm a: Knowledge Seeker
Posts: 4,567
Default Re: Teapo capacitor quality

Quote:
Originally Posted by CapSwapper View Post
Teapos aren't good for longevity. I'd say 5 years absolute maximum.
My 2008 FSP PSU is still doing good, even with Teapo caps.

Nothing like that Deer 250 W PSU.....
__________________
Asus P6T Deluxe

Core i7 Extreme "Bloomfield" 965

PNY GeForce GTX 960

Windows 7 SP1

SoundBlaster ZXR

Corsair TX850M PSU


"There's nothing more unattractive than a chick smoking a cigarette" -Topcat

"Don't eat yellow snow!" -Salem

"did I see a chair fly? I think I did! Time for popcorn!" -ratdude747

Last edited by RJARRRPCGP; 06-16-2014 at 08:52 PM..
RJARRRPCGP is offline   Reply With Quote
Old 06-16-2014, 10:49 PM   #35
mockingbird
Badcaps Veteran
 
mockingbird's Avatar
 
Join Date: Dec 2008
Posts: 4,856
Default Re: Teapo capacitor quality

12.5mm and 10mm Teapo SC may very well be almost comparable to top tier brands in terms of longevity. I've stopped doing mandatory replacements of them in PSUs. The 8mm Teapo SC are replace on sight however.
mockingbird is offline   Reply With Quote
Old 06-18-2014, 06:54 PM   #36
CapSwapper
Member
 
Join Date: Feb 2014
City & State: CA
My Country: USA
I'm a: Knowledge Seeker
Posts: 65
Default Re: Teapo capacitor quality

Quote:
Originally Posted by Agent24 View Post
Stupid, but not surprising. What did they use for replacements?
I forgot the name but it was a brand I never heard of. I remember it was just initials on the cap and it was shipped in yellow boxes with chinese writing.
CapSwapper is offline   Reply With Quote
Old 06-18-2014, 06:56 PM   #37
CapSwapper
Member
 
Join Date: Feb 2014
City & State: CA
My Country: USA
I'm a: Knowledge Seeker
Posts: 65
Default Re: Teapo capacitor quality

Quote:
Originally Posted by RJARRRPCGP View Post
My 2008 FSP PSU is still doing good, even with Teapo caps.

Nothing like that Deer 250 W PSU.....
you should desolder a few and check the readings. The 2200uF Teapos I was replacing daily were reading 10 - 20uF with no leaks or bulges
CapSwapper is offline   Reply With Quote
Old 06-18-2014, 07:02 PM   #38
mockingbird
Badcaps Veteran
 
mockingbird's Avatar
 
Join Date: Dec 2008
Posts: 4,856
Default Re: Teapo capacitor quality

Quote:
Originally Posted by CapSwapper View Post
you should desolder a few and check the readings. The 2200uF Teapos I was replacing daily were reading 10 - 20uF with no leaks or bulges
Interesting. Were these the 10mm Teapo SC, or Teapo SEK?
mockingbird is offline   Reply With Quote
Old 06-18-2014, 07:09 PM   #39
goodpsusearch
Badcaps Veteran
 
Join Date: Oct 2009
City & State: Thessaloniki, Greece
My Country: Greece
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 1,945
Default Re: Teapo capacitor quality

I 've never seen Teapo caps large diameter go bad without bulging.
goodpsusearch is offline   Reply With Quote
Old 06-19-2014, 08:57 PM   #40
Pentium4
CapXon Be Gone
 
Pentium4's Avatar
 
Join Date: Sep 2011
City & State: WA State
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hardcore Geek
Posts: 3,163
Default Re: Teapo capacitor quality

Quote:
Originally Posted by goodpsusearch View Post
I 've never seen Teapo caps large diameter go bad without bulging.
I have. 3300F 16V 12.5mm Teapo SC read 0.33Ω ESR (was not bulging). But generally, yes the 10mm and 12.5mm ones seem to be more reliable
Pentium4 is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 08:15 AM.
Did you find this forum helpful?