Here's my current list of CPU's I either have or had with some dupes for good measure.
I don't have the largest collection by any means, there are some with 3 to 4 x of what I've got, at least one on our team does.
A10-7870K
Athlon 1000 (Thunderbird, FSB 100, Socket 462)
Athlon 64 3000+ (Newcastle, s754)
Athlon 64 3000+ (Winchester)
Athlon 64 3200+ (Venice, s939)
Athlon 64 3400+ (Newcastle, s754)
Athlon 64 3400+ (Venice, s939)
Athlon 64 3500+ (Orleans)
Athlon 64 3700+ (San Diego)
Athlon 64 3800+ (Clawhammer)
Athlon 64 3800+ (Orleans)
Athlon 64 4000+ (Clawhammer)
Athlon 64 4000+ (San Diego)
Athlon 64 FX-55 (San Diego)
Athlon 64 LE-1660 (Lima)
Athlon 64 X2 3600+ (Manchester)
Athlon 64 X2 3800+ (Manchester)
Athlon 64 X2 4050e
Athlon 64 X2 4200+ (Manchester)
Athlon 64 X2 4200+ (Toledo)
Athlon 64 X2 4400+ (Toledo)
Athlon 64 X2 4800+ (Toledo)
Athlon 64 X2 5000+ (Brisbane)
Athlon 64 X2 5600+ (Windsor)
Athlon II X2 270
Athlon II X2 B22
Athlon II X2 B28
Athlon II X4 630
Athlon MP 1700+ (Palomino) ES
Athlon MP 2200+ (Thoroughbred)
Athlon X4 860K
Athlon XP 1700+ (Palomino)
Athlon XP 1800+ (Thoroughbred)
Athlon XP 2000+ (Palomino)
Athlon XP 2000+ (Thoroughbred)
Athlon XP 2100+ (Palomino)
Athlon XP 2400+ (Thoroughbred)
Athlon XP 2500+ (Barton)
Athlon XP 2600+ (Barton)
Athlon XP 2700+ (Thoroughbred)
Athlon XP 2900+ (Barton)
Athlon XP 3000+ (Barton)
Athlon XP 3100+ (Thorton)
Athlon XP 3200+ (Barton)
Athlon XP-M 1700+ (Thoroughbred)
Athlon XP-M 1800+ (Thoroughbred)
Athlon XP-M 1900+ (Thoroughbred)
Athlon XP-M 2400+ (Barton)
Athlon XP-M 2500+ (Barton)
Athlon XP-M 2600+ (Barton)
Athlon XP-M 2800+ (Barton)
Athlon XP-M 3000+ (Barton)
Celeron 500MHz (Mendocino, s370)
Celeron G530
Core 2 Duo E6750
Core 2 Duo E8200
Core 2 Duo E8300
Core 2 Duo E8400
Core 2 Duo E8500
Core 2 Duo E8600
Core 2 Quad Q6600
Core 2 Quad Q8400
Core 2 Quad Q9550
Core i3 7350K
Core i5 3570K
Core i7 2600K
Core i7 3770K
Core i7 7700K
Duron 1600 (Applebred)
FX-4100
FX-4150
FX-4200
FX-4300
FX-4350
FX-6120
FX-6330
FX-8100
FX-8300
FX-8310
FX-8320
FX-8350
FX-8370
FX-9370
FX-9590
Mobile Athlon 64 3000+ (Clawhammer)
Mobile Athlon 64 3400+ (Newark)
Mobile Athlon 64 3700+ (Newark)
Mobile Athlon 64 4000+ (Newark)
Mobile Sempron 2600+ (Sonora)
Mobile Sempron 3000+ (Albany)
Opteron 146 (Venus, s939)
Opteron 148 (Venus, s939)
Opteron 152 (Venus, s939)
Opteron 165
Opteron 170
Opteron 175
Opteron 180
Pentium 120MHz
Pentium 4 2.4Ghz (Northwood, 133 FSB)
Pentium 4 540
Pentium 4 630
Pentium 4 631
Pentium 4 640
Pentium 4 651
Pentium D 915
Pentium D 925
Pentium D 930
Pentium D 945
Pentium G620
Pentium G870
Phenom II X2 550 BE
Phenom II X2 555 BE
Phenom II X3 720 BE
Phenom II X4 955
Phenom II X4 955 BE
Phenom II X4 960T BE
Phenom II X6 1100T BE
Phenom X4 9600 BE
Phenom X4 9650
Ryzen 5 3600X
Ryzen 7 2700X
Ryzen 9 3950X
Sempron 140
Sempron 145
Sempron 2400+ (Thoroughbred)
Sempron 2600+ (Thoroughbred)
Sempron 3000+ (Barton)
Sempron 3000+ (S754, Palermo)
Sempron 3000+ (S939, Palermo)
Sempron 3200+ (Palermo)
Sempron 3400+ (Manila)
Sempron 3400+ (S754, Palermo)
Turion 64 ML-30
Turion 64 ML-32
Turion 64 ML-34
Turion 64 ML-37
Turion 64 ML-42
Xeon E5420
Xeon E5462
Xeon L5240
Xeon X3360