Re: Is it even possible to save a "fried" board?
Posted on 2020-02-16, 22:52
good chance its some capacitors, those socket A boards are around the time of the capacitor plague and bad cheap caps
Re: Sound blaster demo programs for dos
Posted on 2020-02-15, 22:12
thank you for the replies this is exactly what I was after im going to get all of the above and also look around youtube what else is available when I have some time but this is plenty of material for me
Sound blaster demo programs for dos
Posted on 2020-02-15, 06:23
I am wondering if there are any good dos version sound demo programs for sound. I think when I got my 386 as a kid it came with some dos utility that had some 3d graphics and music and sound effects to demonstrate the sounds card abilities. I would like a dos program like this to compare different …
Re: Brand new looking 486 mobo won't start the PSU
Posted on 2019-12-11, 11:29
if there is no +12V and no +5V this is obviously a power delivery issue, nothing will start. You need to go and trace back where +12 and +5 have a possible common fail point and investigate what could of failed there
Re: Brand new looking 486 mobo won't start the PSU
Posted on 2019-12-09, 19:42
usually the psu doesn't start when the power plugs are plugged in the wrong way, maybye it was plugged in the wrong way previously and the power connectors, power. rails are shorted or something is fried. Guess you need to give the power plugs and rails a good visual inspection, next continuity test …
Re: AT motherboard and -5 volt rail
Posted on 2019-11-25, 00:10
if you really really need it I have seen adapters as part of atx - > at converter that generate -5 but I think its not worth it
Re: AT motherboard and -5 volt rail
Posted on 2019-11-24, 22:51
some sound cards use it, but not that many models I have 2 systems running with no -5 386 and 486 only had a problem with a soundcard before but I have many so used one that works
Re: Desoldering/soldering Dallas RTC chip
Posted on 2019-11-23, 13:19
good job! if you haven't done so yet clean the flux residue on the reverse side of the board where the dip socket is soldered to. Even no clean flux can become corrosive in long term down the road
Re: 486 cache trouble shooting ?
Posted on 2019-11-21, 21:58
test them in a tl866
Re: How to go about putting thermal paste on ceramic Pentiums?
Posted on 2019-11-20, 23:31
realistically the paste is there really to bond the 2 surfaces and fill the gaps as perfect as possible. So it doesn't matter how thin it is. It is about transferring the heat as most efficiently from the cpu to the heatsink. It is probably nice to have as much area covered by smudging the paste …
Re: How to go about putting thermal paste on ceramic Pentiums?
Posted on 2019-11-19, 14:34
put a pea sized dot, put the hs on top and move it around in a circle motion then back to centre and clip the hs in, that should cover most of the surface
Re: Gateway Aries motherboard rebuild
Posted on 2019-11-15, 07:51
the answer is in the picture you linked the green and black cables with the prongs for the power button need to be connected together
Re: Can you ID this graphics card ?
Posted on 2019-11-13, 03:37
isint safari a browser and Google a search engine independent of the platform?
Re: Desoldering/soldering Dallas RTC chip
Posted on 2019-11-12, 07:04
what did you use a hand pump/sucker? or proper desolder gun? even if 1 or 2 of traces are not conducting it won't be a hard fix looks in decent condition
Re: Biostar 8433UUD won't post
Posted on 2019-11-12, 06:59
cache matters, it won't boot misconfigured, you need to consult the manual for this. I always could not find the configuration for no cache chips. Can you move the chips from the other board temporarily over just to test? Apart from this first we eliminate what works, bios we can move/test on the …
Re: Desoldering/soldering Dallas RTC chip
Posted on 2019-11-12, 06:31
I think you did pretty good, luck can swing 1 way or another looks like in was in your favour, you didn't rip out any vias or traces but it looks like you came close. My first dallas job I broke it then took days/weeks learning and fixing 20 year old solder can be very stubborn lots of flux new …
Re: Biostar 8433UUD won't post
Posted on 2019-11-08, 23:07
Since u had some bridges go over the whole board looking for inconsistencies like this, there maybe more. It would be nice to locate a pinout for the chips that were bridged see what pins were touching, hopefuly not your vcc in bridged and shorted a chip a burnt chipset would def prevent the boot. A …
Re: Biostar 8433UUD won't post
Posted on 2019-11-08, 10:06
that pin next to CB17 on the chipset on top of the empty cache slots looks a bit funny, is it bent, bridged or just a angle of picture?
Re: Upgrading a Diamond Speedstar Pro VLB to 2MB - which SMD caps?
Posted on 2019-10-31, 23:20
totally agree working with a microscope is like riding a bike and driving a car
Re: Upgrading a Diamond Speedstar Pro VLB to 2MB - which SMD caps?
Posted on 2019-10-31, 20:44
its 2 ways of getting the job done, those are quiet big smd capacitors/resistors and lots of access I think it can be done with a soldering iron with a small tip fine, but hot air is a alternative solution https://www.additude.se/media/1127/components.png On this picture yours would be number 1 or 2 …
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