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| Jumper | Size | Description | Pin/Setting | Description |
| J8 | 2-Pin | Jcol (Color/Monochrome) | Closed Open |
* Color Monochrome |
| J9 | 2-Pin | Jvirq (Video IRQ enable) | Closed Open |
* Enabled Disabled |
| J10 | 2-Pin | Jpwdclr (Password clear) | Closed Open |
Clear Password * Normal Operation |
| J11 | 2-Pin | Jgams (Onboard game port select) | Closed Open |
* Enabled Disabled |
| J15 | 3-Pin | Jdack (ECP DMA select) J15 and J16 must match |
1-2 2-3 Must match J16 |
* DMA Channel 1 DMA Channel 2 Must match J16 |
| J16 | 3-Pin | Jdrq (ECP DMA select) J15 and J16 must match |
1-2 2-3 Must match J15 |
* DMA Channel 1 DMA Channel 2 Must match J15 |
| J17 | 3-Pin | Jbbe (Boot Select) | 1-2 2-3 |
Boot Block * Normal |
| J18 | 3-Pin | Jpare (Parity Enable) | 1-2 2-3 |
Enabled * Disabled |
| J19 | 3-Pin | Jvgae (Onboard VGA Enable) | 1-2 2-3 |
Disabled * Enabled |
| J20 | 3-Pin | Jio (Onboard I/O Controller) | 1-2 2-3 |
Disabled * Enabled |
| J25 | 3-Pin | Jsel (CPU Speed select) | 1-2 2-3 |
25MHz 33MHz |
| J26 | 4-pin (2x2) | Jcsize (Cache size selection) | Any Open 1-2, 3-4 |
0K 128K 512K |
| J28 | 3-Pin | Jret (P24T or S-series reset control) | 1-2 2-3 |
P24T * S-series CPU Standard CPU (Do Not Change to add P24) |
| J29 | 3-Pin | Jmul (P24C Clock multiplier) | 1-2 2-3 Open |
Other Multiplier X2 Internal clock X3 Internal clock |
| J30 | 2-Pin | Jbte (Onboard battery enable) | 3-4 | Use external battery * Use internal battery |
| J31 | 6-Pin (2x3) | Jsx (SX processor selection) | 1-2, 3-4 5-6 |
All except (SX) SX |
| J32 | 6-Pin (2x3) | J(3.3v) (CPU voltage) | 1-3, 2-4 3-5, 4-6 |
3.3V CPU (Not Supported) * 5.0V CPU |
| J33 | 2-Pin | Jlder (LDEV bypass) | Open Closed |
Disabled Enabled |
| J36 | 2-Pin | Jspk (Onboard speaker enable) | 3-4 | Use external speaker * Use internal speaker |
| J37 | 2-Pin | Jobmd (Onboard Memory) | Open Closed |
* Enabled Disabled |
| J39 | 2-Pin | Jacf (Alternate CPU) | Open Closed |
All Other Alternate CPU |
| J40 | 4-Pin | Jacd (Alternate CPU) | 1-2 1-2, 3-4 2-3 |
Alternate CPU - no SMM Alternate CPU - with SMM All Other |
| J41 | 4-Pin | Jace (Alternate CPU) | 1-2 1-2, 3-4 2-3 |
Alternate CPU - no SMM Alternate CPU - with SMM All Other |