I *think* the fastest Trident card would be the CyberBlade XP4. Go find yourself a Toshiba Tecra M1 and see how it stacks up: https://macdat.net/laptops/toshiba/tecra_m1.php

cyclone3d wrote on 2021-04-05, 03:34:

Just took my SR17k apart to look at it. The codec chip is the AKM4543. […]
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ragefury32 wrote on 2021-04-04, 23:13:

cyclone3d wrote on 2021-04-04, 21:48:

So... The laptop that stopped powering up last night was working again this morning. […]
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So... The laptop that stopped powering up last night was working again this morning.

I tested my latest modded driver and it still doesn't output sound but it does make a click when the driver loads.

I decided to go looking for a specific YMF754 driver and actually found a full package with different .INF files for different codec chips. It also has instructions on what to do to make it work with the different codec chips.

It is basically the original 2019 vxd version from Yamaha but was released by a different company.

I am almost 100% sure I can get this version working. I just need to check what codec chips the VAIO laptops use with the YMF754.

I also ordered a spare motherboard which has a PIII 600, Neomagic 256XL+ and the YMF754. Not exactly sure what SR model it is from, but from the looks of it, the SR series all use the same exact form factor motherboard so i can put it in my other SR laptop that won't power up if I can't get it working.

Yeah, that’s the symptom of a failing AD3421 chip - your power circuitry will not fire up after a period of usage, but after a day or 2 it’ll come back to life. Unfortunate the chip will eventually degrade and the machine will require that chip to be replaced.

As for the codec I’ll need to take the SR9GK apart and see which chip it uses. Yeah, we should be able to get it working...it’s just a matter of making the right tweaks to it. I would also like to have the machine not report a bunch of unknown devices in Win98, though.

Just took my SR17k apart to look at it. The codec chip is the AKM4543.

So now I am going to try this driver and see how it works.

Fun thing about this full driver set is that it should work for all 744 and 754 solutions... mwahahaha.

According to the release notes, 4.12.01.2019 only supports 744 and 754.

I'm also wondering about the 4.07.1040 driver set as the release notes mention that it was changed from 4.06 to 4.07 when DX7 support was added... I'm not finding any info on exactly what the 4.12 drive set added over the 4.07 set.... maybe 4.07.1040 is the best vxd set for the other chipsets.

I am wondering if there is a service manual available for the SR17k. I have started disassembling one (to access the CMOS battery) but I am stuck...
Thanks!

ChrisTucson wrote on 2026-03-21, 04:04:

cyclone3d wrote on 2021-04-05, 03:34:

Just took my SR17k apart to look at it. The codec chip is the AKM4543. […]
Show full quote

ragefury32 wrote on 2021-04-04, 23:13:

Yeah, that’s the symptom of a failing AD3421 chip - your power circuitry will not fire up after a period of usage, but after a day or 2 it’ll come back to life. Unfortunate the chip will eventually degrade and the machine will require that chip to be replaced.

As for the codec I’ll need to take the SR9GK apart and see which chip it uses. Yeah, we should be able to get it working...it’s just a matter of making the right tweaks to it. I would also like to have the machine not report a bunch of unknown devices in Win98, though.

Just took my SR17k apart to look at it. The codec chip is the AKM4543.

So now I am going to try this driver and see how it works.

Fun thing about this full driver set is that it should work for all 744 and 754 solutions... mwahahaha.

According to the release notes, 4.12.01.2019 only supports 744 and 754.

I'm also wondering about the 4.07.1040 driver set as the release notes mention that it was changed from 4.06 to 4.07 when DX7 support was added... I'm not finding any info on exactly what the 4.12 drive set added over the 4.07 set.... maybe 4.07.1040 is the best vxd set for the other chipsets.

I am wondering if there is a service manual available for the SR17k. I have started disassembling one (to access the CMOS battery) but I am stuck...
Thanks!

Try this one, the PCG SR series are pretty much all the same inside: https://elektrotanya.com/sony_vaio_pcg-sr27-2 … f/download.html