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What is this Daystar card?
Posted by: eraser on 2025-08-06 18:43:36 I think it's an LC PDS to IIci cache/accelerator adapter, based on casual searching. Can anyone confirm that? Any details?
Posted by: zigzagjoe on 2025-08-06 20:01:22 That should allow use of a PowerCache 030 in LC/LCII.
Posted by: Durosity on 2025-08-07 13:59:30 That should allow use of a PowerCache 030 in LC/LCII. Is it not a bit tall for that?
Posted by: cheesestraws on 2025-08-07 14:05:50 Is it not a bit tall for that? The white connector is LC PDS, it sits horizontally
Posted by: eraser on 2025-08-07 19:17:39 That should allow use of a PowerCache 030 in LC/LCII. Does it require a PowerCache Universal or will a IIci version work? I've seen references to IIci. Is it only those LC models or will any others with a '030 LC PDS work? Thanks!
Posted by: zigzagjoe on 2025-08-07 19:47:48 Does it require a PowerCache Universal or will a IIci version work? I've seen references to IIci. Is it only those LC models or will any others with a '030 LC PDS work? Thanks! I do not know. Bolle might, there are also some daystar manuals floating around that might say.
Posted by: Bolle on 2025-08-08 03:51:31 There's four different kinds of PowerCache cards for the IIci style cache slot. -"P30" IIci and IIsi only (has P30 label at the back near the cache connector and should say IIci on the front) -"P31" adds support for Mac II, IIx, IIcx, LC (likely LCII and CC as well) and SE/30 (P31 label at the back near cache connector and just says "PowerCache" at the front) -"P33" adds support for Macintosh SE, Classic and LCIII -"P34" is the same as P33 but with a QFP CPU The P31 is often referred to as being the IIci version, which is not true. That likely became a thing because of the misinformation spread by Artmix as it did not work in their SE/30 adapter which was a fault of their adapter and not the PowerCache.
Posted by: eraser on 2025-08-08 18:57:57 There's four different kinds of PowerCache cards for the IIci style cache slot. -"P30" IIci and IIsi only (has P30 label at the back near the cache connector and should say IIci on the front) -"P31" adds support for Mac II, IIx, IIcx, LC (likely LCII and CC as well) and SE/30 (P31 label at the back near cache connector and just says "PowerCache" at the front) -"P33" adds support for Macintosh SE, Classic and LCIII -"P34" is the same as P33 but with a QFP CPU The P31 is often referred to as being the IIci version, which is not true. That likely became a thing because of the misinformation spread by Artmix as it did not work in their SE/30 adapter which was a fault of their adapter and not the PowerCache. This is super helpful; thank you!
Posted by: shirsch on 2025-08-09 07:23:27 I have a PowerCache that looks like the topmost photo on the image below. There's an identifier on the back just above the connector: 01-P31UV-001P Is this board compatible with an SE/30? It's working fine in my IIci, but I'd love to use it with one of my SE/30s.
Posted by: Bolle on 2025-08-10 23:58:19 01-P31UV-001P Yes, that one is compatible with the SE/30.
Posted by: Realitystorm on 2025-08-11 03:15:33 View attachment 89678 What manual is this image from?
Posted by: shirsch on 2025-08-11 06:33:48 Yes, that one is compatible with the SE/30. But only when used with an adapter, correct?
Posted by: shirsch on 2025-08-11 06:37:12 What manual is this image from? I wish I could recall where I found that - sorry!
Posted by: Bolle on 2025-08-11 06:58:17 But only when used with an adapter, correct? Absolutely correct. While it will fit the slot with the board sitting outside the chassis it’s electrically incompatible with the pinout of the SE/30 PDS. In fact any IIci slot card will get damaged when fitted into the SE/30 PDS (and IIsi or IIfx) as soon as power is applied. 12V is present on one of the pins on the SE/30 PDS and that pin is a signal pin on the IIci slot pinout. So depending on the actuall accelerator you try that with it will damage at least one or several ICs.
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