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Proud new WGS 9150 owner.
Posted by: crazyben on 2026-08-22 22:02:14
I am the new owner of this bad boy. This seems to be the 80mhz model that was upgraded to 120. I know these are hard to come by but has anyone seen one like this? The badge is not even aligned.
It is loaded with AsanteFast Ethernet 10/100, ATTO siliconexpress IV scsi card, Radius 24-bit graphics I/F. G3 card is installed on the pds slot.

The board looks clean but I noticed a burnt type color around the component above the ROM slot. Anyone know what might be causing that. I didn’t notice that anywhere else.
Posted by: thlnk3r on 2026-08-22 22:26:08
That burnt mark is fairly normal and a known issue with this specific linear regulator (Linear Technology LT1085CM). It should be 12v input and 3.3v output. It's generating something like 8-9 watts in heat. According to another post on thinkerdifferent (https://tinkerdifferent.com/threads...ing-can-anyone-check-their-wgs-vr-temps.2613/) that regulator was measuring a temperature 80C+.

Components in that area "may" be subject to higher heat stresses but meh. Maybe throw on a heatsink on that regulator, that would definitely help dissipate heat.

Wonderful find. Love how its loaded with cards!
Posted by: Phipli on 2026-08-23 02:56:57
Radius 24-bit graphics I/F
That's not the specific model - it was used for multiple cards. What does the ROM say on it? Something like 24AC if it is the Apple version, or PC Pro 24X, 24XK if it is a Radius PrecisionColor?

I'm extremely jealous!
Posted by: crazyben on 2026-08-23 04:52:09
That burnt mark is fairly normal and a known issue with this specific linear regulator (Linear Technology LT1085CM). It should be 12v input and 3.3v output. It's generating something like 8-9 watts in heat. According to another post on thinkerdifferent (https://tinkerdifferent.com/threads...ing-can-anyone-check-their-wgs-vr-temps.2613/) that regulator was measuring a temperature 80C+.

Components in that area "may" be subject to higher heat stresses but meh. Maybe throw on a heatsink on that regulator, that would definitely help dissipate heat.

Wonderful find. Love how its loaded with cards!
Thank you for detailed info. I will put small heatsink on it.
Posted by: crazyben on 2026-08-23 04:52:56
That's not the specific model - it was used for multiple cards. What does the ROM say on it? Something like 24AC if it is the Apple version, or PC Pro 24X, 24XK if it is a Radius PrecisionColor?

I'm extremely jealous!
It’s says PC 24x v1.6. -0066-02.
Posted by: Phipli on 2026-08-23 05:36:01
It’s says PC 24x v1.6. -0066-02.
Well, that is very strange. The 1.6 version ROM doesn't support PPC. I recommend getting either a 24x 2.0 ROM, or an Apple 24AC 1.1 ROM for it.

Good news is that it is the best of that family of cards with a 110MHz RAMDAC so it supports 24bit at 1152*870.
Posted by: crazyben on 2026-08-23 06:12:15
Well, that is very strange. The 1.6 version ROM doesn't support PPC. I recommend getting either a 24x 2.0 ROM, or an Apple 24AC 1.1 ROM for it.

Good news is that it is the best of that family of cards with a 110MHz RAMDAC so it supports 24bit at 1152*870.
That is strange. Do you know where I can get ROM from?
Posted by: Phipli on 2026-08-23 06:29:28
This is the Apple ROM - I'd use this as it means you can use the Apple Driver which integrates with the Monitors control panel. It gives fewer options, but I have never used any of the options the Radius driver gives anyway.


This is the Radius ROM, basically a newer version of what you already have that adds PPC acceleration :



Then you need to flash it to an appropriate chip... Erm, I will need to go and search to find what it is. I know I used Winbond brand chips, but forget the part number.

There are some instructions to mod the card to take two different ROMs and switch between them on my site here :

Radius PrecisionColor NuBus Cards | Stuff & Nonsense

elephantandchicken.co.uk elephantandchicken.co.uk

I have the apple and the Radius ROMs on my card.
Posted by: Phipli on 2026-08-23 06:34:40
Winbond 27C256 to just upgrade (specifically the Winbond part because they erasable). If you want to do the dual ROM mod, you'll need a Winbond 27C512.

Lots of people have the hardware to write one if you don't, so a friend with an interest in electronics that owns a TL866+ might be able to help. I'd send you one, but the shipping would cost more than the ROM by some way.
Posted by: crazyben on 2026-08-23 06:53:17
Thank you. At some point I’ll need to bite the bullet and buy the EPROM. I have another one of these cards that I need to dig up and check what version it has—hoping it’s 2.0.
Posted by: Unknown_K on 2026-08-23 13:31:37
That badge is home made, Apple silkscreened the speed on the case.

Bummer it didn't have the 5 drive tray, but otherwise a very cool machine I wish I had one.
Posted by: crazyben on 2026-08-23 18:44:04
That badge is home made, Apple silkscreened the speed on the case.

Bummer it didn't have the 5 drive tray, but otherwise a very cool machine I wish I had one.
Oh, that makes sense why it is not properly aligned.
A 5-drive bay would take another level.
Posted by: crazyben on 2026-08-23 19:26:45
@Phipli i found another card that has PC24XK V2.0 007-03a. I am guessing this will play nicely with 9150?
Posted by: Phipli on 2026-08-23 23:58:11
@Phipli i found another card that has PC24XK V2.0 007-03a. I am guessing this will play nicely with 9150?
The 2.0 ROM means this one is PPC compatible, but note the XK version is limited to a maximum of 1024*768.

What speed is the RAMDAC? It will either have an 80 or a 110 written on it.

The RAMDAC is here and is either an Analog Devices or a Bt part.

20260824_075457.jpg
Posted by: crazyben on 2026-08-24 07:55:42
RAMDAC is 80.
Posted by: Phipli on 2026-08-24 08:13:37
RAMDAC is 80.
Same as mine - some 24XKs shipped with a 110MHz RAMDAC, which means they're actuall a 24X (the top end model) with the 24XK ROM.

Ours have the RAMDAC that is technically only rated for 80MHz (and so 1024*768)... But I'll let you into a secret... My 24XK happily runs at 1152*870 when flashed with the 24X ROM, even if it technically is overclocking it 🙂
Posted by: crazyben on 2026-08-24 09:12:31
Same as mine - some 24XKs shipped with a 110MHz RAMDAC, which means they're actuall a 24X (the top end model) with the 24XK ROM.

Ours have the RAMDAC that is technically only rated for 80MHz (and so 1024*768)... But I'll let you into a secret... My 24XK happily runs at 1152*870 when flashed with the 24X ROM, even if it technically is overclocking it 🙂
Wow, that is super cool! Now I really need to buy that EPROM. Thanks for all the information and for your help with this.
Posted by: crazyben on 2026-08-28 13:23:00
@Phipli look what I found in my iifx.
Posted by: Phipli on 2026-08-28 13:27:50
@Phipli look what I found in my iifx.
Ooooh nice 🙂

Find attached the drivers.
Posted by: crazyben on 2026-08-28 13:34:18
Thank you. I might have to put one for sale. Not sure if i will need 3 high end card. Then again you cant have enough of good cards. lol
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