Re: AdLib repair attempt - searching a part

Posted on 2015-12-05, 06:17

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The original is audio taper. The eBay one is linear taper. Something I completely overlooked. Thanks for the correction. I had tried searching on the Bourns website directly by part number, with "91D" but no results came up. Yes their site is a PITA. Hard to find anything. Their cross-reference …

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Re: Shuttle HOT-569A: Is this PS/2 pinout correct?

Posted on 2015-12-05, 06:13

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You're welcome!

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Re: New Old Stock Build Pentium III @ 800 MHz w/ ISA Slots

Posted on 2015-12-05, 06:04

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

More correctly -5v is only needed when you have a chip on the ISA bus that needs it. Said chip may be in an add-in ISA card or mounted directly on the board. Chips that need -5v are usually associated with sound cards but they can be onboard too. Such chips may also exist on older tech cards/chips …

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Re: AdLib repair attempt - searching a part

Posted on 2015-12-05, 04:56

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That ebay one is not so great a match IMHO. The original is audio taper. The eBay one is linear taper. 91D1DW32D15 is also written 91D1D-W32-D15 It's a Bourns model/series 91. https://www.bourns.com/pdfs/90SERS.pdf (updated) These are 5/8" square. 51AADB28B15 is also written 51AA-DB28-B15 It's a …

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Re: Shuttle HOT-569A: Is this PS/2 pinout correct?

Posted on 2015-12-05, 03:02

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Filename J99.jpg File size 61.92 KiB Views 643 views File comment Shuttle Hot 569A - J99

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Re: Dual Pentium 3 build in the works.

Posted on 2015-12-04, 16:03

by

by PCBONEZ

in Marvin \ System Specs

in Marvin \ System Specs

If those with the X vents say Rubycon then they are counterfeit.

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Re: How many computers could you possibly build?

Posted on 2015-12-04, 10:07

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by PCBONEZ

in Milliways

in Milliways

150 is really a lot! Where do you keep all of it? :D I've been rebuilding motherboards (mostly recapping) for a second income (on top of my pension) for the last 10+ years. I also snap up good deals for later resale when I come across them. I've purchased as many as 36 boards in one order. And then …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 09:03

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think I will have to go with the Panasonic FR series - everything else seems too hard to source (all this choice is quite a stress!). Before I order, is there anything wrong with these specific selections? 1500uF Panasonic FR eeu-fr1a152l 1000uF Panasonic FR eeu-fr1a102l (10V ver of the one …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 06:43

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There is another good series newer than my chart I that should mention because they are available in several places now. Panasonic FR series. - They are grade E. Very similar to Panasonic FM series but they tend to have a smaller can size for a given uF so in many cases they fit on a board better …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 06:12

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay, the attached is a very slimmed down version of a large comparison chart I made for my own use. The 'Grades' are my own creation. I don't think anyone else uses them. Probably because I've never published them before. :lol: The grades make it easier to have a conversation about caps, so here …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 03:29

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the research PCBONEZ Nichi HM seems to be out of stock/low stock at element14 for both 1500uF and 1000uF (in 8mm versions). Alternatives listed seem to point to the Panasonic FR series 1500uF , 1000uF . Would these be a good substitute? Also, how about the Rubycon ZLJ linked above? Are …

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Re: How many computers could you possibly build?

Posted on 2015-12-04, 01:59

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by PCBONEZ

in Milliways

in Milliways

I figure most people won't be using all of their rigs at the same time anyway :D (unless you feel like sponsoring your local electrical company lol ). Actually I use computers to heat my house in the winter. I don't even turn on the furnace. The place is well insulated and we have mild winters so …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 01:13

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I would not worry about the 100uF or 22uF unless you have problems after replacing the others. You probably won't. Given there are no specs to go by and the vintage I would use something like Nichicon HM, Sanyo/Suncon WG or Rubycon MBZ. Lesser grade caps might work fine but lacking datasheets for …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 00:59

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oh geez, those are all crap. Tayeh is a "mystery brand". No one has figured out who actually made them and datasheets don't exist. FYI: *On motherboards* 6.3v and 10v are interchangeable as they are both on 5v or less. That does not apply to other kinds of electronics because someone might have used …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 00:41

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are a couple of tiny electrolytic caps that the kit does not include. Down by the southbridge IIRC. The tiny caps don't usually need replaced although it's not a horrible idea if they are OST brand or Nichicon VR. I've seen tiny Nichicon VR bloat en masse on older Intel branded motherboards. …

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Re: Recapping an abit bf6

Posted on 2015-12-04, 00:17

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Abit got a double whammy back in the day. At first they were using cheap Ch/Tw caps (like many others) and they took that hit. Then they went all Japanese caps but had the misfortune of using a lot of the Nichicon HM and HN which were later found to be defective due to a manufacturing goof. .

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Re: Recapping an abit bf6

Posted on 2015-12-04, 00:10

by

by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not active over there anymore but I'm a long time senior member of the BCN forum. http://www.badcaps.net/forum/member.php?u=511 I've also recapped 100's of motherboards. BF6 and BE6 might be the same or might be completely different. If the kit worked for both boards he would probably have listed it …

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Re: Spelling and grammar pet peeves around here

Posted on 2015-12-03, 23:26

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by PCBONEZ

in Milliways

in Milliways

I'm not giving up "I dunno" or "wasisname" (as in "Ole Wasisname"). I just like them.

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Re: EDO vs. FPM 72 pin. What will happen if wrong is used?

Posted on 2015-12-03, 23:22

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

feipoa wrote: What influence does that PRESENCE DETECT TRUTH TABLE have if you do not use automatic memory timings in the BIOS? I think none but the tables still give a clue as to what works.

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Re: Motherboard rejecting all Creative sound cards

Posted on 2015-12-03, 23:19

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by PCBONEZ

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was thinking it got moved when XTIDE went in but did not move back when XTIDE was removed. It's been a very long time since I messed with IRQ or DMA manually which is why I said "just guessing". I also thought/hoped bringing it up might spur someone else's memory.

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