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Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-02, 05:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ah, the infamous F*k-YU caps as we call them. One of the top 5 competitors for the title of: "Worst Capacitors Ever Made". Just FYI. TMR is basically an OEM channel version of TM. Those marked just TM were sold through retail channels. (I might have that exactly backwards but you get the idea.) They …

Re: How do computers recognize letters?

Posted on 2020-01-02, 00:06

in Milliways

in Milliways

Homework Assignment?

Re: What HDD do you use? (1GB to 10GB)

Posted on 2020-01-01, 18:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

emote wrote on 2020-01-01, 13:03: Old drives seem to make more noise with age. Maybe it's not very nostalgic to run them if they don't sound the same any more. That's called old bearings. Eventually the platters will wobble enough to have head-disc crashes. .

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 16:56

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looking at the YXGs: Rubycon YXG 1000uF 6.3v 8x16mm ESR= 0.087 Ω Ripple= 840 mA Panny FC series doesn't have a great match at 8mm diameter. Closest without going underspec is probably: Panny FC 1000uF 6.3V 8x20 ESR = 0.065 Ω IRip = 995 mA Pretty much the same story with Nichicon PW. Nichicon UHE …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 16:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did my posts last night go into an abyss on the way here? After fireworks woke us up I posted all you need to know for that board before returning to bed. . I got my datasheet from Mouser. That's the same datasheet I saw before. FS has no 8mm 1000uF at 6.3v or 10v I'm not finding something suitable …

Re: AT psu wires

Posted on 2020-01-01, 10:18

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

............................ .

Re: Issues with Teac FD-55GFR 5.25" floppy drive reading 360k disks

Posted on 2020-01-01, 08:01

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes. Only -SOME- bad wet-lytic caps bloat or leak. All of them eventually wear out. Aluminum Electrolytics are (used to be) called "Self Healing" caps. With a DC bias applied the oxide layer will rebuild itself and repair any damage to the layer. When caps sit with no DC voltage applied the layer …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 07:33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sorry gdjacobs, I read it wrong the first time. Good eye! This FM is an upgrade over the original HD Nichicon HD 1500uF 6.3v 10x20mm ESR= 0.023 Ω Ripple= 1820 mA Panny . . FM 1500uF 6.3v 10x20mm ESR= 0.019 Ω Ripple= 2180 mA https://www.mouser.com/ProductDetail/Panasonic/EEU-FM0J152B?qs= …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 07:01

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Panny FM and FR are close to the same ESR at that size and voltage if you want to stick with one line of lytics. Yes both of those see lots of use on P3 boards, especially for the general (non-VRM) caps. FM is a very old series. FR was spun-off FM a few years ago as a downsized version. (smaller …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 06:52

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some of the small ones are between the slots. It's best to keep those short so they don't interfere with components on cards that go into the slots. [OLD] Rubycon YXG 1000uF 6.3v 8x16mm ESR= 0.087 Ω Ripple= 840 mA [NEW] Panasonic FR 1000uF 6.3v 8x11.5mm ESR= 0.056 Ω Ripple= 950 mA https://www.mouser …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 06:39

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

They still make the HD series so that one is easy. https://www.mouser.com/ProductDetail/Nichicon … 252BMJ3K6644%3D

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 06:19

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Usually yes. Newark does do some in small quantity and they occasionally have sales where they mark things down drastically. I bought 100's of FP-Cap polys from them for 5 to 8 cents each a while back and had the same price down to 1pc. My normal choice is Mouser too. . I have a different FS …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 05:57

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

RoyBatty wrote on 2020-01-01, 05:44: I'm in the USA, western midwest. Mouser, Digikey, Newark or if you want Suncon BDent. Do you have a preference?

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 05:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is why you write it out in a standard format - doesn't have to be MY standard, just any. Nichicon HD 1500uF 6.3v 10x20mm ESR= 0.023 Ω Ripple= 1820 mA Panny . FS 1500uF 6.3v 10x12.5mm ESR= 0.043 Ω Ripple= 1290 mA ESR is twice as high, Ripple is way too low. That ESR is far enough off the …

Re: Capacitors of Asus TUV4x and Gigabyte GA-7VT600 1394

Posted on 2020-01-01, 05:39

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That I can work with: I saw Rubycon YXG in one of the photos I looked at earlier but I could see the Nichicon well enough. Those grades should not be hard to find in wet-lytic or do you want to go with poly? Nichicon HD 1500uF 6.3v 10x20mm ESR= 0.023 Ω Ripple= 1820 mA http://www.paullinebarger.net/ …

Re: Issues with Teac FD-55GFR 5.25" floppy drive reading 360k disks

Posted on 2020-01-01, 04:40

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Power it up. Let it sit with power for about 2 hours. Then try it. .

Re: Solaris 7 build.

Posted on 2019-12-31, 23:24

in Marvin \ System Specs

in Marvin \ System Specs

Thanks guys.

Re: Got myself IBM 365XD... and I'm kinda disappointed :(

Posted on 2019-12-31, 23:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I had the same problem way WAY back but too long ago to remember if I solved it or switched laptops. There might be other video bios &/or drivers that will help. This: http://www.thinkwiki.org/wiki/Category:365XD Says it's a Trident Cyber9320 .

Re: My CRT is blurry and the internal focus controls are already set correctly: how to fix?

Posted on 2019-12-31, 22:32

in Marvin \ Video

in Marvin \ Video

I dunno if he's still around but there was a gent over at badcaps.net that knows CRTs really well. His handle was kc8adu. That's where I'd go if I had CRT questions. .

Re: My CRT is blurry and the internal focus controls are already set correctly: how to fix?

Posted on 2019-12-31, 21:53

in Marvin \ Video

in Marvin \ Video

CRTs have some nasty high voltages so whatever you do be careful in there. If you don't know then look up how to discharge capacitors IN CRTs. Yes, fresh capacitors might help. I have not worked on a whole lot of CRTs and it's been a while but there are usually other adjustments inside. If you can …

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