jessenator
Well-known member
Figured I'd break this out earlier, rather than later. Let's put fake detection methodology, etc in this thread.
I'm going to pop in info from the thermals/L88M proofing thread into here, but feel free to add anything I've left out.
@Bolle let me know if you have other info on fakes and such similar to this (for some reason mobile won't let me copy the quote like I did below...):
Check the other numbers in the lower left corner. As far as my data collection goes those do give away the mask as well. As far as I can tell it's like this:
D98D ends with -010
E31F ends with -001
E42K ends with -101
K63H have seen w/ both -104 & -103 L88M ends with -104
I'll add the mask tables that we have currently in a separate post
So far, it looks like the L88M LRC is indeed smaller, but truth will out. I won't call it just yet, but it's a great theory to keep proving.
I'm going to pop in info from the thermals/L88M proofing thread into here, but feel free to add anything I've left out.
@Bolle let me know if you have other info on fakes and such similar to this (for some reason mobile won't let me copy the quote like I did below...):
Check the other numbers in the lower left corner. As far as my data collection goes those do give away the mask as well. As far as I can tell it's like this:
D98D ends with -010
E31F ends with -001
E42K ends with -101
K63H have seen w/ both -104 & -103 L88M ends with -104
I'll add the mask tables that we have currently in a separate post
The date table might be in weeks for some and not for others, so IDK what's going on there, but here are the tables from the Polish site
FULL 040s:
Mask Process (μm) Fab Production years (if known) yy/wk? D43B 0.8 MOS8 91/03-91/15 D50D 0.8 MOS8 91/50 D98D 0.8 MOS8 92/09-92/3-50 E31F 0.65 MOS11 93 - 2-Jun-95 E26A 0.65 MOS8 (???) 92-95 E42K 0.65 MOS11 2-Jun-95 - 13-Aug-00 K63H 0.57 TSC8 13-Aug-00 - 23-Nov-02 L88M 0.57 MOS11 Nov 23, 2002 - 2004 (?)
EC and LC 040s
Mask Process (μm) Fab Years of production if known D39H 0.8 MOS8 92 E23G 0.65 MOS11 9339 - 02-Jun-95 E71M 0.65 MOS11 02-Jun-95 - 17-Jan-00 J46X 0.57 TSC8 17-Jan-00 - 07-Sep-2002 L89M 0.57 MOS11 From 07-Sep-2002
I'll do a proper overlay with a higher resolution, but here's from my phone for now:To me, the die looks bigger in this image. So this seems like one way to determine what version the chip is.
So far, it looks like the L88M LRC is indeed smaller, but truth will out. I won't call it just yet, but it's a great theory to keep proving.