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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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 Posted: Sat Jan 17, 2009 9:01 pm Post subject: |
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| klamath wrote: |
On closer inspection
turned out to be a remarked 180 - 512K. It was a pretty poor job too, as you can see. |
definately done on the cheap. a quick repaint to fill the laser markings, then remark. The first thing i noticed was the shine of the "ceramic" 
all of my ceramic fakes have been ground & relasered. The PPGA packages have had a new plastic layer applied on the bottom with new markings
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Sun Jan 18, 2009 6:10 am Post subject: |
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| tlccomp wrote: |
I also remember chip brokers getting robbed on a regular basis because of the easy money to be made. They would get held up. All their CPU's and memory taken and dumped back onto the market (usually to another broker). Back then a new 16 Meg memory module (4x32) was $1100-$1200 new... easy to sell to someone else for $800. Alot easier than robbing banks. |
CPU and memory theft was also a big problem for institutions in the mid 90's. In 1994 my university computer room was hit, the criminals broke in, cut all the cables with huge bolt cutters, stripped all the hard drives of cache memory and took other stuff. Other computer rooms were targeted, the cpus and memory would be taken, leaving the machines in pieces all over the rooms. Happened about 5 times. Computers would also go missing from offices all the time, people simply walked in, just picked it up and walked out with it. Crazy.
Now you can find all that stuff on ebay for like $1. |
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donutty
Joined: 16 Feb 2008
Posts: 1122
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| Posted: Sun Jan 18, 2009 1:49 pm Post subject: |
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| A few years ago theft of memory in transit (mainly just after it landed at the cargo depot of airports) was a major problem. This sort of thing still goes on today; just watch some documentaries on the web about counterfeit ICs and such. |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Sun Jan 18, 2009 2:01 pm Post subject: |
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| A lot of "recycling" takes place in the sweatshop e-waste towns in China. Chips get desoldered on a hot plate or oven, then picked off - usually by hand - and put in a drum. They are then sorted, cleaned, re-tinned and packed then sent on to brokers to be sold as NEW. |
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Chook
Joined: 29 Oct 2008
Posts: 2250
Location: Australia
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| Posted: Thu Feb 05, 2009 10:36 pm Post subject: |
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I just picked up a Pentium 233 that I believe is fake. Its quite a good fake though, and has an sspec of SL293. This is for a ppga chip and my chip is spga. Are there any genuine ceramic Pentium 233s?
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Thu Feb 05, 2009 10:43 pm Post subject: |
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| Chook wrote: | | I just picked up a Pentium 233 that I believe is fake. Its quite a good fake though, and has an sspec of SL293. This is for a ppga chip and my chip is spga. Are there any genuine ceramic Pentium 233s? |
i believe they only go up to 200
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Sun Aug 30, 2009 10:13 pm Post subject: |
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this is the latest fake i have come across & its a good one
I didnt pick it until i placed it next to my other SL25Ns to check the dates 
The printing on the top is more squashed & narrower
On the botttom, the words "intel" & "pentium" are slightly smaller, the FPO code being a narrower font. Also the '92 '93 is slightly raised off the line.
But overall.. if i didnt have spares of the sSpec.. i would of probably neva given it a second look. From the photos (especially the bottom) it is hard to pick.
note >> the printing on the bottom of the left chip looks patchy as it still has residue from a sticker that was removed
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There are 10 types of people in this world:
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smithy
Joined: 27 Apr 2008
Posts: 2906
Location: Sydney, Australia
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| Posted: Sun Aug 30, 2009 10:24 pm Post subject: |
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But is it really a fake? Or just a slightly different printing technique for that batch? Hard to know for sure?
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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| Posted: Sun Aug 30, 2009 10:50 pm Post subject: |
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| smithy wrote: | | But is it really a fake? Or just a slightly different printing technique for that batch? Hard to know for sure? |
apart from the other 8 SL25Ns i have, i also compared it with another 30 malay ppga pentiums between week 10 to 30 & I found no other with any similar printing.
But my other suspected SL25N fake.... is also from the same week.. so it could be either way till i find more from that week of production
on a side note.. any pentiums with a narrow font I now inspect closely. My SX957 (same date as the fake one on chipdb.org) I found in a local puter also had a narrow engraved font on the top of the chip
.. checking the gold die cap u can see that the suface had been lightly "polished", but also u could just make out the original printing.
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