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Search: Posts Made By: momaka
Forum: General Capacitor Questions & Issues Yesterday, 01:29 AM
Replies: 29
Views: 1,843
Posted By momaka
Re: Improving CRT geometry by upgrading capacitors

That depends on your video card.
Analog output is no longer built into current-gen video cards anymore. In fact, the last (and best) nVidia video card to have analog output (through DVI-I) is the...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-03-2020, 09:31 PM
Replies: 3,098
Views: 814,022
Posted By momaka
Re: Power supply build quality pictorial. part 2

Hey, that sounds and looks familiar!

I have a TASK TK-930TX that acts similarly with a heavy 12V load (and also not great with a heavy 5V load either.) I posted about it here:...
Forum: General Computer & Tech Discussion 07-02-2020, 11:12 PM
Replies: 4,518
Views: 692,895
Posted By momaka
Re: best cheap/free scores 1.1

My latest/last free score was a Supermicro P8SCT with 2 GB of DDR2 RAM.
https://www.supermicro.com/products/motherboard/P4/E7221/P8SCT.cfm
Gifted by a former workmate who got it from his other job...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-02-2020, 10:21 PM
Replies: 1,627
Views: 355,886
Posted By momaka
Re: the gutless, bloated, and fried power supply hall of shame

Excellent!

As a bonus bit, you also now have a spare 6-pin PCI-E power cable that you can add to a more worthy power supply. ;)


Standing up to their name, pretending to be 470 uF caps when...
Forum: General Capacitor Questions & Issues 07-02-2020, 08:50 PM
Replies: 107
Views: 36,078
Posted By momaka
Re: How to Recondition (Reform) Electrolytic Capacitors and Why

Probably the easiest thing to do would be to rectify mains (230/240V AC) with a full bridge rectifier, then connect each Sprague 2000 uF, 400V cap, one at a time only, to the DC output of the bridge...
Forum: Troubleshooting Game Consoles & Other Weird Devices 07-02-2020, 08:10 PM
Replies: 25
Views: 989
Posted By momaka
Re: HDD Spins up and down again at power on

Right.
But I don't think usage affects mechanical HDDs as much. Rather, the failure modes usually seem to be related either to spindle bearing wear (long power-on hours), head wear (frequent...
Forum: Troubleshooting Power Supplies and Power Supply Design 07-02-2020, 07:47 PM
Replies: 30
Views: 1,379
Posted By momaka
Re: Task TK-940TX-DF Blowing fuse

Try measuring the resistance of both caps with a multimeter instead of ESR meter.

If neither shows shorted, check the resistance across each cap spot on the PSU PCB. See if anything there measures...
Forum: Other Devices with Bad Capacitors 07-02-2020, 07:20 PM
Replies: 7
Views: 314
Posted By momaka
Re: EVGA e-GeForce 7600 GS AGP 256MD2 [256-A8-N542-T2] with bad caps - fixed

Indeed it does on those ATI cards. The bridge chips really do need a heatsink. Not sure how big, though. I have a few ATI cards with such chips that I plan on putting a passive heatsink, just to see...
Forum: Frequently Asked Questions (No Posting) 06-25-2020, 05:15 PM
Replies: 9
Views: 4,504
Posted By momaka
Re: How To Stop CRT Flicker

*sigh* Here we go again, falling into discussion about resolutions, as if it's the late 2000's and "HD" video all over again. :rolleyes:

The high resolution of CRTs (even compared to early LCDs)...
Forum: Troubleshooting Game Consoles & Other Weird Devices 06-25-2020, 04:49 PM
Replies: 25
Views: 989
Posted By momaka
Re: HDD Spins up and down again at power on

Well, maybe not in months, but certainly a good number of them probably drop out after 2-4 years (maybe longer if the HDDs do come with a long warranty, like in your case.) Still, I just can't see...
Forum: General Computer & Tech Discussion 06-25-2020, 04:22 PM
Replies: 806
Views: 261,759
Posted By momaka
Smile Dell OptiPlex 790 for a Gaming PC

So in the Winter of 2017, I acquired a bunch of used/broken desktop PCs from a shop that was cleaning out its storage. Most of them were from the Core 2 Duo and Athlon II era or older. There was one...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-17-2020, 09:21 PM
Replies: 16
Views: 282
Posted By momaka
Re: Modifying power brick output voltage question

^ This.

Dropping from 36V to 12V is a really huge step. Remember, the primary and secondary voltages at the transformer output are always the same, regardless of the PWM value.

For 36V output,...
Forum: General Computer & Tech Discussion 06-17-2020, 04:57 PM
Replies: 9
Views: 245
Posted By momaka
Re: Motherboard fan running before power on

Can we have some pictures of the setup and the PSU?
What brand and model is the power supply?
Does the PSU fan run when connected to the motherboard?
- If yes, then disconnect PSU from the...
Forum: General Computer & Tech Discussion 06-17-2020, 04:50 PM
Replies: 10
Views: 326
Posted By momaka
Re: Another dead Apple A1418 21.5" i5 computer

That's an important piece of information.

It could be that a power-surge has damaged the PSU.

But it could also be a power-surge has damage something else, typically through a long cable for a...
Forum: General Computer & Tech Discussion 06-17-2020, 04:11 PM
Replies: 5
Views: 209
Posted By momaka
Re: Has anyone else here have a problem with the fan speed on GeForce GTX 960s?

+10000

Don't believe the lies nVidia and AMD are spreading that it is OK for a GPU to run at such high temperature. It is NOT OK. Heat is still the #1 reason why GPUs fail nowadays and has been...
Forum: General Computer & Tech Discussion 06-17-2020, 03:34 PM
Replies: 7
Views: 324
Posted By momaka
Re: Aliexpress LGA2011 X79 motherboards

+1

Although I have not owner a Chinese no-name board yet, I too am weary of their reliability. Meanwhile, it is truee that Dell and HP workstations are engineered with reliability in mind, and...
Forum: Frequently Asked Questions (No Posting) 06-17-2020, 10:10 AM
Replies: 9
Views: 4,504
Posted By momaka
Re: How To Stop CRT Flicker

I do.

Mostly Fortnite nowadays, but occasionally CS Source / CS GO and Dirt Rally as well.
CSS and CSGO look great on these monitors: 1280x960 @ 85 Hz is probably about as smooth as 120/144 Hz on...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-16-2020, 06:39 PM
Replies: 1,627
Views: 355,886
Posted By momaka
Re: the gutless, bloated, and fried power supply hall of shame

Yup, I did that a lot as a kid as well - kept cool-looking electronic components without really knowing what they were meant for or what I could use them for. Interestingly, many years later when I...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-16-2020, 06:02 PM
Replies: 3,098
Views: 814,022
Posted By momaka
Re: Power supply build quality pictorial. part 2

Yup, I started a thread about it here:
https://www.badcaps.net/forum/showthread.php?t=85301
Already recapped unit #1 posted above and it's working well. Unit #2 is operational but needs its output...
Forum: Other Devices with Bad Capacitors 06-16-2020, 05:33 PM
Replies: 7
Views: 314
Posted By momaka
Re: EVGA e-GeForce 7600 GS AGP 256MD2 [256-A8-N542-T2] with bad caps - fixed

Thanks! :)

I'm not sure if YT still supports HW acceleration on this card. But I'd like to think it does, because up until recently, computers with onboard GeForce 6100/6150/6200 chipsets still...
Forum: General Computer & Tech Discussion 06-16-2020, 12:51 PM
Replies: 16
Views: 441
Posted By momaka
Re: Went Kayaking....and it's not what you're thinking! HP XAs Restoration!

I love it! Great rescue, TC. :)

This is from back in the day when Hewlett Packard built really good stuff.
Of course, I don't even want to imagine how much someone paid for this back when it was...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-16-2020, 09:37 AM
Replies: 1,627
Views: 355,886
Posted By momaka
Re: the gutless, bloated, and fried power supply hall of shame

^ I did that with a JNC PSU many years ago. It was as gutless as a PSU could get from the early 2000's, but still had a ton of useful components. As such, I'm still using parts from that thing, even...
Forum: Frequently Asked Questions (No Posting) 06-16-2020, 09:11 AM
Replies: 9
Views: 4,504
Posted By momaka
Re: How To Stop CRT Flicker

*Raises hand proudly* :D
Yes, I still use CRTs.
Almost exclusively, actually. :eek:
My LCDs are only for testing or if I need to put up a temporary PC setup somewhere.

Here is an old picture I...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-15-2020, 04:15 PM
Replies: 3
Views: 170
Posted By momaka
BFG Tech BFGR550WGSPSU [LW6550SE Rev. K] unit #2

Like I mentioned in the previous post and the power supply built quality pictorial thread, I have two of these power supplies. Here is unit #2:...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-14-2020, 07:34 PM
Replies: 30
Views: 1,379
Posted By momaka
Re: Task TK-940TX-DF Blowing fuse

Yup, you got them. :nod:


Yes, that is normal.
Usually, there is a high-value resistor between Live and Neutral to discharge the X2 caps. 1 MOhm is a very typical value.


Well, there aren't...
Showing results 1 to 25 of 500

 
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