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Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-20, 09:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

A typical application of the air soldering station, would be ideal in the removal of cache chips like the one in the photo, in the specific case, it is an L2 cache chip, of a Soyo SY-5BT (which I have), I don't know the reason but one pin has been removed, another next to it maybe is not optimally …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-18, 20:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's not my channel, it's necroware's channel! ;) Sorry, I thought it was your channel, anyway it's very nice, I like the old PC topic, I saw a video of a CAF 286, it's externally identical to my CAF 386, it's not a famous brand but you can see that at the time, late 80's early 90's, it was still …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-18, 19:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have some good experience with a desoldering gun, see necroware's review on that: https://www.youtube.com/watch?v=qeizk0Yquzw On stubborn pins I found that the best sequence is: - Add some flux/fresh solder - Heat it up with the desoldering gun and move the desoldering gun head "around" the pin. …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-17, 21:27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well after trying to free up some pins, I stopped, is there something wrong, or the PCB is very delicate or the soldering iron is not good.? I do not think that by continuing they could make progress, in the sense that, on about ten pins perhaps one or two have been freed, the alternative would be …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-17, 20:49

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The first socket to be removed, on the 486 4FLUD-1.0, is that of the KB BIOS, with 40 pins, obviously the worst side is that of the battery side, in some pins you can see oxidation (green), if they then still ensure ️ the conductivity, it could also be, but there are three or four tracks below, …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-17, 17:19

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

A little while ago I withdrew a mini batch, of hooves for BIOS chips, I need both on the 486 and possibly on other PCs, the fundamental problem, is that the oxidized plinths must be cleaned up, and even if properly cleaned, they may have not optimal connections, for this and other reasons, I prefer …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-16, 21:49

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I move on a board on which I put my paws , as soon as possible, Soyo is the brand, the model is quite interesting , the model is SY-6IZM/3, ZX chipset and ATi integrated video. The images show how it is, quite traditional today, but at the time it was normal not to have VGA or integrated audio, …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-14, 16:13

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The board thinking about it, is not yet ️ ready, because we need to repair the interrupted tracks, well I thought there were those upper side PCB, actually looking well at the back, I found others, ultimately the motherboard was in “unexperienced” hands, you can see from the broken hooks, the bent …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-14, 15:27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On the FIC PA2010+, I tried to straighten the pins of the chipsets, I just tried to distance as much as possible, the result is not the maximum, but the distance is in my opinion sufficient, they are not too close, and this ensures that they do not cross, and that the space isolates them …

Re: Zida 5STX-J98 Rev 1.01 Mainboard with latest 2.6 Bios Problems

Posted on 2024-01-14, 11:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So if you rely on the automatic voltage recognition, it could be possible that it starts with a lower voltage, when with the P.MMX it starts at 125 MHz, this is normal, but if you switch to the jumpers manually, if you select for example 2.9V , you must have about 2.9V (+ or - 0.1V), does this tell …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-14, 11:19

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also be sure to have some airflow on the VRM to limit the risk...as it's close to the socket it may be indirectly provided by the CPU fan if the cooler permits it. Thank you so much my friend Initially I will use a Pentium 133 type CPU, this is to verify that the board works, and do some benching, …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-14, 08:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

After finishing the work of replacing the capacitor, on the FIC PA2010+, they pointed out to me (Thank you very much), the generous dimensions of the heatsinks, on the VRM mosfets, this means that the regulators are of the linear type, and significantly limits the update with faster CPUs, it is …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-13, 21:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I finished the work on the FIC PA2010+, the swollen capacitor has been replaced, the original one was of the I.Q. brand, I don't think it means imagine quality, however for the moment I have replaced only the one (swollen), always in that area there are five others identical, plus some bigger and …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-13, 17:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I ordered the 28-pin and 40-pin hookes, for the BIOS chips, unfortunately I forgot to order the 32-pin ones, always for BIOS chips, but I can add them (Monday). At this point with the 486, I'm waiting for the spare parts, I think they can arrive on the weekend, and so for the moment I'll take care …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-13, 07:51

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Now, I'll try to get some indispensable things, like 40-pin and 28-pin chip sockets, I hope to find new ones, I'll try to go to an electronics store, I already know it's likely that they don't have them, and that they need to be ordered. These sockets, I will need to remove the too oxidized ones, …

Re: Zida 5STX-J98 Rev 1.01 Mainboard with latest 2.6 Bios Problems

Posted on 2024-01-11, 20:20

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So if you rely on the automatic voltage recognition, it could be possible that it starts with a lower voltage, when with the P.MMX it starts at 125 MHz, this is normal, but if you switch to the jumpers manually, if you select for example 2.9V , you must have about 2.9V (+ or - 0.1V), does this tell …

Re: Test and troubleshoot PC@LIVE motherboards

Posted on 2024-01-10, 20:32

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just to check, on the FIC PA2010+, I looked for other possible problems, and looking for them you can find them! Inside the PCI slots, I found something, two are okay, one has the A1 and B1 pins crooked, the other has one of the pins (I don't know if A1 or B1) also crooked, in short, I don't know …

Re: Zida 5STX-J98 Rev 1.01 Mainboard with latest 2.6 Bios Problems

Posted on 2024-01-10, 20:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Mobo VRM IMG_6251.jpg PCI bios analyzer gives two codes one for award one for itself, I couldnt resolve correctly; IMG_6269.jpg IMG_6270.jpg I think about possibilities; 1.Mobo ver 1.01 does not support over 166Mhz 2.Jumper settings are different for this version. 3.Jumpers are faulty does not …

Re: Zida 5STX-J98 Rev 1.01 Mainboard with latest 2.6 Bios Problems

Posted on 2024-01-10, 19:13

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Have you updated the BIOS? It is latest 2.6 bios. According to what Jan writes, if you have BIOS 2.6, P.MMX and K6 will not work, so you should install version 2.3, which has verified and should solve the boot failure problem. He also suggests using the K6-2 on manual settings, and if that works, I …

Re: Zida 5STX-J98 Rev 1.01 Mainboard with latest 2.6 Bios Problems

Posted on 2024-01-10, 16:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Mobo VRM IMG_6251.jpg PCI bios analyzer gives two codes one for award one for itself, I couldnt resolve correctly; IMG_6269.jpg IMG_6270.jpg I think about possibilities; 1.Mobo ver 1.01 does not support over 166Mhz 2.Jumper settings are different for this version. 3.Jumpers are faulty does not …

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