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ASRock B550 PG Velocita
Ryzen 9 "Vermeer" 5900X
32 GB G.Skill RipJaws V F4-3200C16D-32GVR
Arc A770 16 GB
eVGA Supernova G3 750W
Western Digital Black SN850 1TB NVMe SSD
Alienware AW3423DWF OLED
"¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo
"There's nothing more unattractive than a chick smoking a cigarette" -Topcat
"Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat
"did I see a chair fly? I think I did! Time for popcorn!" -ratdude747 -
Re: the gutless, bloated, and fried power supply hall of shame
Found this little beauty in a Compaq Presario A64.
Must have been a thoughtless replacement at some point for the original!
Fan was very stiff so I guess it ran hot and somewhat overloaded for some time in order to cook more or less every cap in the unit!Attached FilesComment
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Main rig:
Gigabyte B75M-D3H
Core i5-3470 3.60GHz
Gigabyte Geforce GTX650 1GB GDDR5
16GB DDR3-1600
Samsung SH-224AB DVD-RW
FSP Bluestorm II 500W (recapped)
120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
Delux MG760 case
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Re: the gutless, bloated, and fried power supply hall of shame
I think I saw a March, 2001 date code on one of the caps. There's a good chance to original PSU was from Delta, and if it lasted for 15 years, it did pretty good. At any rate, while I wouldn't use that thing for the full rated 300W when brand new, restored it would probably be good for 200W-250W. The two potential limiting factors would be the 2A +5VSB and, more importantly, the 10A rating for the +12V output.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
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Re: the gutless, bloated, and fried power supply hall of shame
The PSU predates the Compaq by some years without a doubt.
I figured the person I acquired the machine off did a quick fix and swapped the PSU out for one from a older machine.
Usually I am up for repairing such things but the weak 12V rail really means its rather useless for me in this system.
Machine however is now sporting a 300W FSP unit and it working perefctly
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Re: the gutless, bloated, and fried power supply hall of shame
As far as my experience goes, I used recapped Deers similar to the Mercury above (except the diodes-on-bracket were replaced with actual rectifiers) to power Northwood based PCs. (in fact,one of the PCs I gave runs a P4 2.8 Northwood with a FX5200,a MSI 845E Max mobo and a 120GB WDC HDD)The PSU predates the Compaq by some years without a doubt.
I figured the person I acquired the machine off did a quick fix and swapped the PSU out for one from a older machine.
Usually I am up for repairing such things but the weak 12V rail really means its rather useless for me in this system.
Machine however is now sporting a 300W FSP unit and it working perefctlyMain rig:
Gigabyte B75M-D3H
Core i5-3470 3.60GHz
Gigabyte Geforce GTX650 1GB GDDR5
16GB DDR3-1600
Samsung SH-224AB DVD-RW
FSP Bluestorm II 500W (recapped)
120GB ADATA + 2x Seagate Barracuda ES.2 ST31000340NS 1TB
Delux MG760 case
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Re: the gutless, bloated, and fried power supply hall of shame
Oh Deer!Originally posted by Bungz
It's one of their "2003"/"2005" chip-of-the-year BTX designs (BTX for Deer/L&C typically signifies the primary is located on the same side as the receptacle plug and the secondary is same side as the fan... not the other way around like with other "normal" PSUs).
That said, with a better rectifier on the 12V rail and bigger output caps, this thing could probably provide up to 14 Amps on the 12V rail, which should be enough to power a Pentium 4 / Core 2 Duo / low power Core i3 or i5 system with on-board or low-power GPU and single HDD. I'm not sure if it's worth the hassle fixing it, though.
I would do it for fun, but I don't expect anyone else to be like me.
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Re: the gutless, bloated, and fried power supply hall of shame
The worst trash I could find, this PSU i was installed on a pc, the owner of the pc complained that it did not start all the time, and it squeaked, and it did not work stable the pc.
Subject: 3G0 "450W"
primary
ate 7n60
c5027s
2 cap jay'long 200v 470 microfarads
ic ka3842
diode bridge
diferent size LOL
x2 sep 1n5
x2 sep rl2
secondary
diode lt 338
switch st stps30 45cw 30A (The only thing of decent brand xD) but the transformer that accompanies ... this would cause havoc. does not meet what promises in its label.
apd sbr1040ct
4x chengx 10v 2200 microfarads
2x chengx 16v 470 microfarads for 5vsb
2x chengx 16v 470 microfarads
At least it has one good thing, it has 2 thermistors
The transformer is super tiny!
Attached FilesLast edited by kevin!; 03-23-2017, 03:24 PM.Gaming pc:
nVidia RTX 3080 TI, Corsair RM750I.
Workshop PC:
Intel core i5 8400, Intel SSD 256GB, nvidia gt1030, asus b365-a.
Server:
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Re: the gutless, bloated, and fried power supply hall of shame
It's sad how that can be passed off as a 450W PSU. [I'm guessing 100W maybe.]
I like the brand of the input capacitors. [jay'long]
I'm not a expert, I'm just doing my best.Comment
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Re: the gutless, bloated, and fried power supply hall of shame
It will surely be 100W, As it requires power, it bursts xD
What is not as it has not yet exploded, nor the capacitors "jay long" xD.Gaming pc:
nVidia RTX 3080 TI, Corsair RM750I.
Workshop PC:
Intel core i5 8400, Intel SSD 256GB, nvidia gt1030, asus b365-a.
Server:
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Re: the gutless, bloated, and fried power supply hall of shame
What are you planing on doing to that PSU? Scrap it? Burn it? Throw it off an cliff?
I'm not a expert, I'm just doing my best.Comment
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Re: the gutless, bloated, and fried power supply hall of shame
I have thought, is to charge to burst, but for lack of machinery I can not do it
.
I'll think of something like busting her xD.Gaming pc:
nVidia RTX 3080 TI, Corsair RM750I.
Workshop PC:
Intel core i5 8400, Intel SSD 256GB, nvidia gt1030, asus b365-a.
Server:
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Re: the gutless, bloated, and fried power supply hall of shame
I have a crap PSU which i'm thinking of putting 2.1KV into the input via an MOT. [Microwave oven transformer.]I'm not a expert, I'm just doing my best.Comment
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Re: the gutless, bloated, and fried power supply hall of shame
woe... kilovolts... better be careful when u do that! u get zapped, its your funeral!
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Re: the gutless, bloated, and fried power supply hall of shame
Actually, unless it's counterfeit, that KA3842 is either Samsung or Fairchild (Fairchild bought some of Samsung's linear IC products around that time).switch st stps30 45cw 30A (The only thing of decent brand xD)
Those input caps (ignoring the non-brand brand) and the size of those heatsinks would put the realistic output power at around 250W maximum.PeteS in CA
Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
****************************
To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
****************************Comment
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Re: the gutless, bloated, and fried power supply hall of shame
I dare not touch a microwave transformer xD. What I want is petarla the 450w indicated, I will put several H4 light bulbs, to see if I can overload it.
I also think it, I think it is false.Gaming pc:
nVidia RTX 3080 TI, Corsair RM750I.
Workshop PC:
Intel core i5 8400, Intel SSD 256GB, nvidia gt1030, asus b365-a.
Server:
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Re: the gutless, bloated, and fried power supply hall of shame
That transformer is just... Wow!
PeteS in CA: Good guess, here is a user that tested it.
The primary exploded at 277w
http://www.jonnyguru.com/forums/showthread.php?t=6714
EDIT: Here it is with a 250w rating even
http://www.powsun.itxpower.net/pcpower_8867.htmLast edited by Per Hansson; 03-24-2017, 02:58 PM."The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: the gutless, bloated, and fried power supply hall of shame
Thanks for this information, make it clear that it is the worst psu I have ever seen.That transformer is just... Wow!
PeteS in CA: Good guess, here is a user that tested it.
The primary exploded at 277w
http://www.jonnyguru.com/forums/showthread.php?t=6714
EDIT: Here it is with a 250w rating even
http://www.powsun.itxpower.net/pcpower_8867.htm
I even put it at less level than deer xD.
If the psu of the forum of jonnyguru exploded with 277, I do not want to imagine my PSU, since with a pentium 4 of 65w of consume gave error to start, I do not want to imagine asking for load of 277 watts, there it explodes in my face.
Gaming pc:
nVidia RTX 3080 TI, Corsair RM750I.
Workshop PC:
Intel core i5 8400, Intel SSD 256GB, nvidia gt1030, asus b365-a.
Server:
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Re: the gutless, bloated, and fried power supply hall of shame
In most of the Americas, you would be lucky to get 150 W out of it...ASRock B550 PG Velocita
Ryzen 9 "Vermeer" 5900X
32 GB G.Skill RipJaws V F4-3200C16D-32GVR
Arc A770 16 GB
eVGA Supernova G3 750W
Western Digital Black SN850 1TB NVMe SSD
Alienware AW3423DWF OLED
"¡Me encanta "Me Encanta o Enlistarlo con Hilary Farr!" -Mí mismo
"There's nothing more unattractive than a chick smoking a cigarette" -Topcat
"Today's lesson in pissivity comes in the form of a ziplock baggie full of GPU extension brackets & hardware that for the last ~3 years have been on my bench, always in my way, getting moved around constantly....and yesterday I found myself in need of them....and the bastards are now nowhere to be found! Motherfracker!!" -Topcat
"did I see a chair fly? I think I did! Time for popcorn!" -ratdude747Comment
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Back in 2020 i bought a (2nd hand) compact ATX psu to replace my current one. My PC case only fits very short ATX power supplies so i didn't really have the choice of buying a decent 80Plus unit. The current unit is a modded YoungYear unit that i made a thread about a while ago:
A "nice" YoungYear unit? - Badcaps
The "new" unit is a KDM-M6480 480W psu, the 480W number is a typical KDM bullshit claim of course, but the 24A rating on the 12V rail seemed reasonable and the "Active PFC" claim gave me a bit of hope that this was going to be decent-ish.... -
Introducing... the POS-124Z which really is a POS:
Yep it's a POS allright.
I tried powering it up. It's a KILLER - not fried, but sure will fry things! I got 21V out of it unloaded according to my DMM!
I tried 21W load (car lamp) - got 16V, which is really pushing that lamp.
Then I tried a 50W load (car headlight) - got 13.2V. Not too bad but this is with the heavy load...except the circuit breaker kept tripping.
So I had to take a peek:
EIEW. Looks like a Darlington emitter follower + Zener device. Heatsinking?... -
Hi,
I'm learning electronics(already have some basics) by fixing a FH52M LA-J891P rev1B. It come from an acer nitro 5. The charger was defaulting upon pluging. The 19V rail resistance is 0ohm (I believe that caps screw my measurement). When i inject 5A, I get a rail tension of 1.3V, and 0.8V vcccore.
Except the cpu, I cant feel anything getting warmer.
I believe that it is normal, because the cpu is "eating" half the power I'm imputing.
I dont know if the cpu is fried, because I did not remove the big capacitor on vcccore.
I believe that if the cpu was fried,... -
While our PSU hall of shame thread is fun I thought It'd be fun to have a ripple hall of shame thread too
I'll go first out, it's an industrial PSU that offers +15v -15v -5v +5v rails.
However it has been mounted on a frame with DC/DC converters for producing +12v and -12v as well.
The caps for this have gone a bit high ESR
The measured ripple is around 1700mV, or 1.7v!
After recapping the ripple is gone, also note that the scale on the scope is 50mV/div instead of 500mV per div in this shot
-And that's how you know you have a qualifying... -
Hello!
Looks like I fried something when my EDP cable got squeezed on the hinge. I replaced the cable but still no display. Laptop works fine with external monitor connected through HDMI and Display Port-USB C port. I took it apart and I see a burnt component. Can anyone help me identify what this component is? I tried to use schematics for another G15 but it does not match on the amount of pins and size. I attached pictures. The component has a label on it - (21A29)
Laptop is a Asus G15 Advantage Edition 2021 Laptop Ryzen 9 5980HX - 6800M...
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