justin1985 wrote on 2025-01-30, 23:06:

I bought this plain looking PC on eBay for what seemed to be a very unusual case - it's MiniITX but with both full sized 5.25" and 3.5" drive bays ...

I see those SFF cases on eBay all the time with a starting price of £0.99. I had the same thoughts as you but I absolutely hate those low profile expansion slots. Hard to find small cases with a full size riser slot. I have my reasons!

Kahenraz wrote on 2025-01-31, 21:31:

PcBytes wrote on 2025-01-31, 18:25:

myne wrote on 2025-01-31, 16:36:

https://www.alldatasheet.com/datasheet-pdf/pd … ICS9150-08.html

According to the datasheet it seems to do 133. How well that would run, idk.

Are these overclocks troublesome for the AGP, PCI, or ISA bus? What if the stability problem?

I'll test it out later. I have an A7N266-VM under stability testing, from the same package the P2B came from, right now.

For $15 I got an Aztech Waverider Pro 32-3D (138-MMSN852) , which sounded brighter and clearer with FM music than the CT2770 and ES1868.

PcBytes wrote on 2025-01-31, 21:50:

Kahenraz wrote on 2025-01-31, 21:31:

PcBytes wrote on 2025-01-31, 18:25:

According to the datasheet it seems to do 133. How well that would run, idk.

Are these overclocks troublesome for the AGP, PCI, or ISA bus? What if the stability problem?

I'll test it out later. I have an A7N266-VM under stability testing, from the same package the P2B came from, right now.

And... it won't let a 1GHz CPU go higher than 833MHz.
Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x multi for 7.5x133= ~1GHz, yet nada.
Also locks up before showing the Windows desktop, although idk if it was because I was booting off a 9GB IBM SCSI HDD.

zwrr wrote on 2025-02-01, 08:25:

For $15 I got an Aztech Waverider Pro 32-3D (138-MMSN852) , which sounded brighter and clearer with FM music than the CT2770 and […]
Show full quote

For $15 I got an Aztech Waverider Pro 32-3D (138-MMSN852) , which sounded brighter and clearer with FM music than the CT2770 and ES1868.

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I love the these Aztech cards I'm 99% sure the MMSN852 was my first sound card back in the day and came in a 'multimedia' bundle with an 8x CD drive. I bought a MMSN852 for five times as much last year as am on a mission to rebuild my old system, nostalgia is crazy.

PcBytes wrote on 2025-02-01, 11:03:

And... it won't let a 1GHz CPU go higher than 833MHz. Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x mu […]
Show full quote

PcBytes wrote on 2025-01-31, 21:50:

Kahenraz wrote on 2025-01-31, 21:31:

Are these overclocks troublesome for the AGP, PCI, or ISA bus? What if the stability problem?

I'll test it out later. I have an A7N266-VM under stability testing, from the same package the P2B came from, right now.

And... it won't let a 1GHz CPU go higher than 833MHz.
Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x multi for 7.5x133= ~1GHz, yet nada.
Also locks up before showing the Windows desktop, although idk if it was because I was booting off a 9GB IBM SCSI HDD.

It's the chip that is buggy. This piece of conversation below comes from the Motherboard forum but is no longer available on the web, Author is 'P2B' aka Simon Edwards and Keith Hui who are behind the Tipperlin quide for ASUS mobo's:
ooooooooooooooooooooooooooo
Need P2B-S mod help
www.motherboardpoint.com
Feb 22, 2006
Yeah, upgrading older P2B-series boards would be a lot simpler if the 9150-08 133Mhz setting actually worked, instead of producing an ugly signal the BX interprets as 109Mhz. Maybe next time you are beating on them about the cost of deficient designs, you could suggest they atone for past sins by making 9250-08 samples available to those of us who still care...
P2B
ooooooooooooooooooooooooooo

Vogons member Laflash managed to upgrade the 9150-08 on a P2B-D board. You can read more about it here:
Upgraded Asus P2B-D with 133MHz FSB
Upgraded Asus P2B-D with 133MHz FSB

PcBytes wrote on 2025-02-01, 11:03:

And... it won't let a 1GHz CPU go higher than 833MHz. Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x mu […]
Show full quote

PcBytes wrote on 2025-01-31, 21:50:

Kahenraz wrote on 2025-01-31, 21:31:

Are these overclocks troublesome for the AGP, PCI, or ISA bus? What if the stability problem?

I'll test it out later. I have an A7N266-VM under stability testing, from the same package the P2B came from, right now.

And... it won't let a 1GHz CPU go higher than 833MHz.
Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x multi for 7.5x133= ~1GHz, yet nada.
Also locks up before showing the Windows desktop, although idk if it was because I was booting off a 9GB IBM SCSI HDD.

It's multiplier locked. You can set them to anything you like and the only thing that might change is the bios display.

You were actually setting it to 1333mhz.

myne wrote on 2025-02-01, 12:54:

PcBytes wrote on 2025-02-01, 11:03:

And... it won't let a 1GHz CPU go higher than 833MHz. Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x mu […]
Show full quote

PcBytes wrote on 2025-01-31, 21:50:

I'll test it out later. I have an A7N266-VM under stability testing, from the same package the P2B came from, right now.

And... it won't let a 1GHz CPU go higher than 833MHz.
Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x multi for 7.5x133= ~1GHz, yet nada.
Also locks up before showing the Windows desktop, although idk if it was because I was booting off a 9GB IBM SCSI HDD.

It's multiplier locked. You can set them to anything you like and the only thing that might change is the bios display.

You were actually setting it to 1333mhz.

Um... the chip I use has the default multiplier 7.5 - SL4MF.

PcBytes wrote on 2025-02-01, 13:58:

myne wrote on 2025-02-01, 12:54:

PcBytes wrote on 2025-02-01, 11:03:

And... it won't let a 1GHz CPU go higher than 833MHz.
Used the multiplier selection from P2B rev 1.10 to set jumpers to 7.5x multi for 7.5x133= ~1GHz, yet nada.
Also locks up before showing the Windows desktop, although idk if it was because I was booting off a 9GB IBM SCSI HDD.

It's multiplier locked. You can set them to anything you like and the only thing that might change is the bios display.
You were actually setting it to 1333mhz.

Um... the chip I use has the default multiplier 7.5 - SL4MF.

Vogons member limsolo ran into the same problem here:
Re: Asus P2B-D CPU heatsink clearance for Slotkets
oooooooooooooooooooooo
I have the old 9150 clock gen chip which I confirmed with SoftFSB wont produce a proper signal at 133Mhz it downclocks the CPU's (I forgot exactly what but it was lower than 112Mhz FSB).
oooooooooooooooooooooo

Oh, well, look into finding a 9250.
iirc they're pin compatible

Managed to snag an ASUS P5PE-VM for a price I think was reasonable

It was £40 (GBP) - I think I was able to snap it up because it was listed incorrectly as a different motherboard

Every time I've had chance to see one listed it's been for 3-4x the price I paid

Excited to get it into a little case for some Win98 tom-foolery

zwrr wrote on 2025-02-01, 08:25:

For $15 I got an Aztech Waverider Pro 32-3D (138-MMSN852) , which sounded brighter and clearer with FM music than the CT2770 and ES1868.

Ah, 3rd gen Aztech card. Yes, nice real OPL3 with better filters than most SB16. Shame about the Samsung 1MB wavetable - but they can't all be MMSN826 (with ICS wavetable and 2MB ROM)

Nice price too, even formerly unloved and ubiquitous Aztech cards are starting to get thin on the ground.

Got some good stuff today.

Major Jackyl wrote on 2025-02-01, 19:49:

Got some good stuff today. […]
Show full quote

Got some good stuff today.

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I also own a same exact Panasonic floppy drive. The fact that you can't rotate the lever without any floppy inserted is very cool.

myne wrote on 2025-02-01, 16:39:

Oh, well, look into finding a 9250.
iirc they're pin compatible

Found some on alien aliexpress not long ago, for very manageable money. Bought some, still
1. Waiting for time to transplant it to my P2B-DS
2. Considering if the lower clocks of the 9150 would actually be more usable to keep

RoundTheTwist wrote on 2025-02-01, 12:47:

zwrr wrote on 2025-02-01, 08:25:

For $15 I got an Aztech Waverider Pro 32-3D (138-MMSN852) , which sounded brighter and clearer with FM music than the CT2770 and […]
Show full quote

For $15 I got an Aztech Waverider Pro 32-3D (138-MMSN852) , which sounded brighter and clearer with FM music than the CT2770 and ES1868.

The attachment mini-1.jpg is no longer available

The attachment mini-2.jpg is no longer available

The attachment mini-3.jpg is no longer available

The attachment mini-4.jpg is no longer available

I love the these Aztech cards I'm 99% sure the MMSN852 was my first sound card back in the day and came in a 'multimedia' bundle with an 8x CD drive. I bought a MMSN852 for five times as much last year as am on a mission to rebuild my old system, nostalgia is crazy.

Yes, you can imagine how joyful and unforgettable it was to get such a sound card with hard wavetable synthesis in childhood.

zwrr wrote on 2025-02-02, 01:42:

Yes, you can imagine how joyful and unforgettable it was to get such a sound card with hard wavetable synthesis in childhood.

any card for that matter, i will never forget when i bought a cheapo Genius ISA card with Crystal chip and i heard the Lotus 3 opening theme after playing many times with the speaker

https://www.youtube.com/watch?v=-zqMEPCYmn4

every update in the 90's was a milestone

Major Jackyl wrote on 2025-02-01, 19:49:

Got some good stuff today. […]
Show full quote

Got some good stuff today.

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That's quite a haul - I mean literally, that Lian-Li case has wheels right? I used to have that in silver and it was huuuuge. I sold it a while back and had to ship it in a cardboard box, the shop I dropped it off at said no more packages that size 😒
Whereabouts do you find 5.25" drives, a Radeon 9700, a Creative Labs Goldfinch card and a wavetable card all in the same place?

dominusprog wrote on 2025-02-01, 21:32:

Major Jackyl wrote on 2025-02-01, 19:49:

Got some good stuff today. […]
Show full quote

Got some good stuff today.

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The fact that you can't rotate the lever without any floppy inserted is very cool.

Just be very careful with it and make sure that anyone that may interact with the machine knows that it does NOT lock unless a disk is inserted.

I had a similar drive and the plastic sleeve+bump that acts as the locking mechanism is just press-fitted onto a steel shaft with a notch cut in it. So, the twisting force applied to the lever on the outside translates to a twisting force (with leverage) of 30+ year old plastic on a steel rod. The white plastic may be different, but on the black ones this causes the plastic to crack in multiple places, which prevents the lever from working at all. 🙁

The way I fixed it was actually to wrap the cracked plastic sleeve several times in wire-wrapping wire (with the shielding stripped off), and then using a soldering iron to melt the wire into the plastic to give it some strength. Last I knew it was still operating... but this was not a fun process!

Ozzuneoj wrote on 2025-02-02, 10:10:

Just be very careful with it and make sure that anyone that may interact with the machine knows that it does NOT lock unless a d […]
Show full quote

dominusprog wrote on 2025-02-01, 21:32:

Major Jackyl wrote on 2025-02-01, 19:49:

Got some good stuff today. […]
Show full quote

Got some good stuff today.

The attachment 20250201_131745.jpg is no longer available

The attachment 20250201_131734.jpg is no longer available

The attachment 20250201_125934.jpg is no longer available

The attachment Screenshot 2025-02-01 134141.png is no longer available

The attachment Screenshot 2025-02-01 134153.png is no longer available

The fact that you can't rotate the lever without any floppy inserted is very cool.

Just be very careful with it and make sure that anyone that may interact with the machine knows that it does NOT lock unless a disk is inserted.

I had a similar drive and the plastic sleeve+bump that acts as the locking mechanism is just press-fitted onto a steel shaft with a notch cut in it. So, the twisting force applied to the lever on the outside translates to a twisting force (with leverage) of 30+ year old plastic on a steel rod. The white plastic may be different, but on the black ones this causes the plastic to crack in multiple places, which prevents the lever from working at all. 🙁

The way I fixed it was actually to wrap the cracked plastic sleeve several times in wire-wrapping wire (with the shielding stripped off), and then using a soldering iron to melt the wire into the plastic to give it some strength. Last I knew it was still operating... but this was not a fun process!

There are other drives that have the same mechanic. I hope somebody make a 3D model for these parts.