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#41 | |
Banned
Join Date: Feb 2022
Location: Anywhere and everywhere I have a contract
Posts: 822
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#42 |
Registered User
Join Date: Jun 2009
Location: Dublin, then Glasgow
Posts: 6,413
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The demand was already ramping up with the A3660, the 040-060 adaptor boards and the TF1260.
I don't want to rub salt in the wound by telling you how much I paid for my rev 4 ![]() |
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#43 |
Professional slacker!
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My Rev5s were about 200/ea in the last couple of years, I couldn't justify the price of the Rev6 although I didn't need it for my BPPC (64mhz was the max with SCSI/BVision) but I would have like one for my TF1260 but alas the Rev5 will have to do lol.
Should've bought a few when they were cheaper! I did have a BPPC with Rev6 once, that was a great card to, it could hit 72mhz with the SCSI working! |
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#44 | ||
0ld0r Git
Join Date: Mar 2009
Location: Cornwall, UK
Posts: 1,725
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![]() Surely you could make a claim through eBay saying you didn't receive goods as advertised? Last edited by Kin Hell; 22 October 2022 at 14:50. Reason: Typo |
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#45 | |
Banned
Join Date: Feb 2022
Location: Anywhere and everywhere I have a contract
Posts: 822
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#46 | |
0ld0r Git
Join Date: Mar 2009
Location: Cornwall, UK
Posts: 1,725
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#47 |
Registered User
Join Date: Jan 2023
Location: Sammamish, WA, USA
Posts: 22
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New Mask discovered for genuine rev6 CPUs?
Figured this thread is as good as any. Feel free to point at better threads?
I've recently acquired eighteen (18) full rev6 68060 CPUs, with VERY strange markings. 1. They are marked as (M) MC68060RC60 (Motorola not Freescale) 2. They have a previously unseen mask (13E27K) 3. They came on a tray (means nothing) when purchasing in bulk 4. 2-for-2 on tests (both TF4060 and BFG9060) have shown them to be genuine rev6 in Amiga Test Kit, WhichAmiga, etc I don't know why someone would go to the trouble of re-marking genuine rev6 CPUs with a new Mask and "MC68060RC60" (usually not seen except from Freescale?), and am happy that so far they check-out as real, but... mysterious |
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#48 |
Registered User
Join Date: Dec 2015
Location: USA
Posts: 3,006
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I've got one or two MC68060RC60, so I wouldn't be worried about that at least.
As long as the FPU/MMU work, just be happy at your luck and see what the upper range for overclocking is- after you find some heatsink/fans that fit properly. |
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#49 |
Registered User
Join Date: Jan 2023
Location: Sammamish, WA, USA
Posts: 22
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But are they Freescale or Motorola marked, and what is the Mask? I've never seen an MC68060RC60 from Motorola before, and these Masks aren't the typical rev6 mask.
But yes, they're testing as genuine rev6, so... |
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#50 |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,619
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Interesting. Where is the engraving numbers that usually run vertically along the LHS of the chip?
They all have the same manufacturing date on them. Week 19, 2000. That date is before the creation of Freescale which was 2004. If they work, they work. I believe that Motorola sold full 060 parts with broken MMU/FPUs marked as LC/EC. So only by testing the MMU and FPU do you know these are full working rev6 and not EC/LC remarked If they are remarked. Must have been a long time ago? Given the amount of information myself (and others) have written about how to spot fakes. e.g. The valid combinations of mask numbers, XC/MC, EC/LC, fab codes, the fonts and logos used Motorola, Freescale, NXP and manufacturing date codes about what the engraving on the LHS means why would anyone today produce identifiable fakes? Last edited by alexh; Today at 13:49. |
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#51 |
Registered User
Join Date: Jan 2019
Location: Germany
Posts: 3,467
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Chinese vendors are happy to print any mask on the chips you ask them to... What really matters is the revision the silicon reports to you. The CPU command can do that for you, and that is what really counts. Plug it into a system, provide the CPU revision as read out by this tool, and check which components are actually present (i.e. FPU and MMU). Then you know what you got here.
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#52 |
Registered User
Join Date: Mar 2004
Location: finland
Posts: 1,848
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I saw years ago a mention about a small batch MC68060RC60 produced by Motorola.
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#53 | |
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,619
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Quote:
If they were previously marked as LC/EC because they had faulty MMU/FPU they will appear as full 060 |
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#54 |
Registered User
Join Date: Jan 2023
Location: Sammamish, WA, USA
Posts: 22
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I don't believe that is correct? LC chips were typically showing as rev4 via software check, not rev6? Also, they would physically disable the detection of FPU/MMU if the parts were not successful - no? Otherwise, that part dropped into a system would automatically enable the FPU or MMU and then be unreliable.
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#55 | |
Registered User
Join Date: Jan 2023
Location: Sammamish, WA, USA
Posts: 22
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#56 |
Registered User
Join Date: Jan 2023
Location: Sammamish, WA, USA
Posts: 22
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if someone has a good stand-alone MMU+FPU testing tool (I don't think there's anything in ATK or SysInfo for example), I'm all ears. I suppose I can drop these into a fully baked system with OS 3.2.x and MMULibs and run POV Fish test for the FPU on every single chip? ...
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#57 |
Registered User
Join Date: Oct 2007
Location: ManCave, Canada
Posts: 1,675
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#58 | |
Registered User
Join Date: Jan 2019
Location: Germany
Posts: 3,467
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#59 | |||
Thalion Webshrine
Join Date: Jan 2004
Location: Oxford
Posts: 14,619
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You may be right. I cannot confirm there are any LC/EC rev6 parts. Only that there are LC/EC parts which appear as full 060s. I've owned lots of 68060s (inc LC/EC) and still have lots but I am not in a position to retest so have to go on memory.
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LC/EC branded parts were shipped to customers who knew never to use the FPU or MMU in their SW. Washing machines, telecoms etc. Motorola did make a 2nd mask dedicated LC parts (G59Y) in 1996 that physically didn't have an FPU. Parts using this mask set with faulty MMUs were sold as EC parts. These parts benefit from the power/heat savings of a lower geometry than the first 68060 and power/heat savings of no FPU. These parts can be identified because they have an "E" at the end of the product code. eg. XC68LC060RC50E but these parts are all rev4, 0.42um parts. These are typically the ones rated 66 and 75 and are sometimes in plastic packages. AFAIK there was never a mask set without an FPU in the later 0.35um process used for rev6. As I said if there are rev6 LC parts they would be software indistinguishable from working ones. Last edited by alexh; Today at 13:51. |
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#60 | |
EAB fan
Join Date: Apr 2013
Location: Slovenia
Posts: 30
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