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Daystar PowerCard 601 - 100MHz variant


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It would become a sort of a Turbo601. :tongue:

It's highly likely not going to work, because the firmware for the ARM VLSI will be different.

The Turbo601 essentially is a Turbo040 with all the PPC stuff thrown in.

 

The same 030->040 bus translation that's on the Turbo040 happens on the Turbo601. They even re-used the same ASIC that can be found on the Turbo040:

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Next translation happens from 040 bus to 601 bus using the same ARM/VLSI chip found on all other PPC accelerators for 040 Macs:

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You'll have that ARM chip on your LC475 upgrade as well.

Same chip is found on the Quadra PDS PPC upgrades.

 

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Oh well, so much for the excitement... 

 

Cracked die... Bugger. 

 

I found a few PPC601's on ebay, but I can't find a decent datasheet for the part numbers.... 

 

I'd legitimately try and swap the cpu with my hot air station... 

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That's such a shame! My condolences.

 

I feel like I have to ask: is this something you can see yourself attempting to reverse-engineer? If it's broken anyway...

 

IBM PowerPC 601s come up on ebay UK from time to time. It's possible you could scavenge a working chip from one of those. 

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@PowerMac_G4 Thing is, this card is rare enough as it is...this is gonna be a 4/6 layer board, and very, very tightly packed - i'd say at least for now, it's beyond me. 

@Bolle Do you have a whole tray of those 040 ASICs?! Where the hell did you find them?

I think if i can find a NoS PPC601, i'll give it a go. Cut the legs off the dead PPC, use hot air to remove the remnants, then clean up the pads, solder paste and away we go...sounds simple enough in practice, but TQFP304 parts...eeesh.

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On 2/26/2021 at 3:17 AM, Kai Robinson said:

.this is gonna be a 4/6 layer board, and very, very tightly packed

 

I feared as much! It'd probably be extremely challenging to get all the parts for this anyway, if it's even possible at all. 

 

I wonder if there's a reballing specialist in the UK who'd have a crack at this for you if you could source a new CPU...

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20 hours ago, PowerMac_G4 said:

I wonder if there's a reballing specialist in the UK who'd have a crack at this for you if you could source a new CPU...

 

The 601 is not a BGA chip. It's an extremely fine pitch TQFP chip. I'd argue it'd be easier if it were a BGA chip.

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I have one of those cards in my LC475. Its not 100mhz as this one above I have identified its 66mhz 601, which whatever the clock chip is at, it'll double of actual speed. ie. 25mhz 040-double it will become 50mhz.

It is rare find, Ive had this card in 475 and 575, I do not have 575 body at the moment so its sitting 475 board - handy to have! also I love the startup chord as well.
Cheers

AP

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20 hours ago, Daniël Oosterhuis said:

The 601 is not a BGA chip

I used "reballing" to generically refer to the process of soldering lots of tiny points on a chip. It seemed more efficient but was probably a poor choice of words with retrospect.

 

I've dealt with enough TQFP packages to know that mortal hands don't stand a chance. 

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You need a brand new CPU with perfectly straight pins, liquid solder with flux, a hot air workstation and proper alignment to fix that. I have a 601-66 PDS card for a Quadra I was thinking about trying to fix someday because of a broken die.

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19 hours ago, slomacuser said:

How does startup chord sounds? Like first Powermacs “plenk” or like Performa “boong”?

 

If it's anything like the DayStar Quadra PDS PowerPC cards (including the Apple Power Macintosh Upgrade Card, which was essentially just an Apple rebranded version of the same card), it's the latter. 

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On 2/27/2021 at 7:50 AM, slomacuser said:

How does startup chord sounds? Like first Powermacs “plenk” or like Performa “boong”?

 

 

Sounds like "Braaaeeeyyyyy" I am not too sure - as I cannot remember other sounds - Ive had too many macintoshes.
Cheers

AP

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It's like a super lightweight Inception bwaahhhhn with some rhythmic bass undertones. I was super miffed when I discovered only the first run PowerMacs used the Stanley Jordan chord—I mean, there was only one in my high school, a 6100 with a bad PRAM battery, that no one would replace— I wonder if licensing was the reason, moreso than the "exclusivity" factor...

 

65scribe compares the Quadra and PPC upgrade chimes side-by-side:

(Timecode should be in the link, but it's at 7:09)

 

 

I think most of the PowerPC LCs/Performas had this chime, the 62xx did for sure. Maybe the 63xx and 52/53xx. My memory is fuzzy, but the 64/65/54/5500s I think moved to the PCI PowerMac chime, but the x500s weren't called Performas anyway.

 

Did the 611x Performa models have the guitar or the bwaaaaaahnn chime?

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Easily my favorite startup chime, just something about that bass line (starts around 7:34 in the video above) coupled with the rest of the tone that make it sound optimistic to me, like you'd hear over the dawn of a new day.  It's a shame it was only used on the PPC upgrade cards and Macs that tend to be looked down upon (PM 52/53/62/63xxs).  That they decided to just pitch-shift what was the Quadra 660AV/840AV chime twice (once for the PCI Power Macs and once more everything G3 and beyond) just seemed like a missed opportunity to me.  

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21 hours ago, EvilCapitalist said:

pitch-shift what was the Quadra 660AV/840AV chime twice (once for the PCI Power Macs and once more everything G3 and beyond)

This has rankled me to no end... They pitched it down (at a non-semitone interval no less) and it reduced in overall quality each time, which was BONKERS to me! Like, the 840av chime was amazing—best chime IMO—but why, if you're going to copy it, why not do it right, if you're going to retune it? Was there that little room in ROM that they couldn't keep the original higher-quality-encoded (I'm assuming PCM) version, even if they just wanted to pitch it down? Was part of the re-encoding process to blame? I have my doubts.

 

Here's the on-board "last" PCI Mac chime: https://www.dropbox.com/s/sfujnwvsr4fnkuh/PCI-post-G3-chime.mp3?dl=0

and here's my edited, slowed down 840av chime to match the pitch above: https://www.dropbox.com/s/1x7wb7kqm2ndkjg/840av-pitched-down-to-PCI-post-G3.mp3?dl=0


Speaking of chimes, after my 2019 MBP got a particular system update they gave the silent Macs a chime again! and it sounds pretty great (*this recording doesn't). There must be a way to extract the raw data, but my phone recording* will have to do for the moment :tongue: It's not a butchered version of the original 840av, which is something, I suppose https://www.dropbox.com/s/ttv4pkob2ydf3if/mbp-2019-update-chime-320kbps.mp3?dl=0

AND THEY DROPPED THE PITCH AGAIN

 

 

Anyway, back on topic: Kai, here's hoping you get your DayStar repaired! Part of me wonders if I could replace the 604/166 on my PowerComputing card in a similar manner, though it seems BGA replacements aren't as nasty as the 601's mounting is.

 

Edited by jessenator
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On 2/28/2021 at 9:57 PM, jessenator said:

Speaking of chimes, after my 2019 MBP got a particular system update they gave the silent Macs a chime again! and it sounds pretty great (*this recording doesn't). There must be a way to extract the raw data, but my phone recording* will have to do for the moment :tongue: It's not a butchered version of the original 840av, which is something, I suppose https://www.dropbox.com/s/ttv4pkob2ydf3if/mbp-2019-update-chime-320kbps.mp3?dl=0

AND THEY DROPPED THE PITCH AGAIN

 

 

If I remember corrctly, they didn't exactly dropped the pitch again on the MBPs, it's that the T2 chip (which is managing sound) isn't fully initialized yet.

 

I hope that they make another startup sound for future M1 Macs

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20 hours ago, demik said:

If I remember corrctly, they didn't exactly dropped the pitch again on the MBPs, it's that the T2 chip (which is managing sound) isn't fully initialized yet.

The M1 Macs have the same pitch, though. I believe the theory that it's due to distortion doesn't hold up due to that.

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On 2/26/2021 at 4:45 PM, Daniël Oosterhuis said:

 

The 601 is not a BGA chip. It's an extremely fine pitch TQFP chip. I'd argue it'd be easier if it were a BGA chip.

 

Agree. BGA are easier to work with, if the chip isn't super large, you only need a heat gun.

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