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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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 Posted: Thu Dec 20, 2018 7:33 pm Post subject: Some Unusual Cyrix CX486DLCs |
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First we have this one
Its a Cx486DLC-25GP, mid life production
and has added: Heatsink-33
So apparently if it had a heatsink (judging by the glue it had on it it did) it could run happily at 33MHz.
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CPUShack
Joined: 16 Jun 2003
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Andreycpu
Joined: 13 Feb 2016
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| Posted: Fri Dec 21, 2018 12:54 am Post subject: |
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| with heatsink |
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CPUShack
Joined: 16 Jun 2003
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feipoa
Joined: 08 Mar 2011
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Location: Canada
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| Posted: Sat Feb 23, 2019 12:55 am Post subject: |
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| Wowah! Was it expected that all these DLC chips have a heatsink on them for normal operation? Since so many of them are found bare in the wild, I just assumed they were run bare. |
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CPUShack
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feipoa
Joined: 08 Mar 2011
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Location: Canada
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| Posted: Sat Feb 23, 2019 1:30 am Post subject: |
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Did they all fall off prior to hitting eBay and CPU-World? Why do I never find them with heatsinks? Maybe I should add it to my list of CPUs to look out for. PGA-132 heatsinks could come in very handy.
And did the TI 486DLC's come with heatsinks as well? Never seen one of those. What about the SXL? |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Sat Feb 23, 2019 1:39 am Post subject: |
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because most the ones on eBay are from scrap, and scrappers yank them.
Only seen them on a TI once or twice I think
in a decent case with good airflow its probably not a problem, but some applications probably warranted it
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feipoa
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CPUShack
Joined: 16 Jun 2003
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| Posted: Sat Feb 23, 2019 1:54 am Post subject: |
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TI one was nothing special, just glued on generic aluminum
I had a spare from a Cyrix DRx2 somewhere , if I find it I'll let ya know
probably work to use one from a graphics card or chipset too
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feipoa
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feipoa
Joined: 08 Mar 2011
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| Posted: Sat Feb 23, 2019 11:32 pm Post subject: |
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Do you know if the SXL2-66 3.6 V units on QFP-to-PGA interposer by Evergreen came with a heatsink?
This is what I'm referring to, https://www.vogons.org/download/file.php?id=43455&mode=view
I've never seen one of these with a heatsink. The PGA-168 versions all appear to have heatsinks and also run at 3.6 V. I'm hesitant to run my QFP SXL2-66 without a heatsink, but I'll have to create something to clip onto the interposer somehow. |
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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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feipoa
Joined: 08 Mar 2011
Posts: 553
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| Posted: Sun Feb 24, 2019 12:08 am Post subject: |
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| Mine didn't have any residue, but previous owner could have cleaned it? Two other Vogons guys have ended up with these chips as well, but no heatsink. I suppose I could use an IR temperature gun to check the surface temperature at load to ensure it is under rated temp. |
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