TYAN COMPUTER CORPORATION
S1837UN (THUNDERBOLT) (REV. 1.10)
| Device Type | Mainboard |
| Processor | Celeron/Pentium II/Pentium III |
| Processor Speed | 233/266/300/333/350/366/400/433/450/466/500/533/550MHz |
| Chip Set | Intel 440BX |
| Audio Chip Set | Creative Labs |
| Maximum Onboard Memory | 1GB (SDRAM supported) |
| Maximum Audio Memory | Unidentified |
| Cache | 0/128/256/512KB (located on the CPU) |
| BIOS | AMI |
| Dimensions | 330mm x 305mm |
| I/O Options | 32-bit PCI slots (6), AGP slot, ATX power connectors (2), audio in - CD-ROM, audio in - MPEG, Ethernet connector, floppy drive interface, game interface, IDE interfaces (2), IR connector, line out, line in, microphone in, modem audio connector, parallel port, PS/2 mouse port, SCSI Narrow interface, SCSI Wide interfaces (2), serial ports (2), TV card (video) connector, USB ports (2), Wake-on-LAN connector, Wake-on-modem connector |
CONNECTIONS |
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Purpose |
Location |
Purpose |
Location |
| AGP slot | AGP | System fan power | FAN3 |
| ATX power connector | ATX1 | System fan power | FAN4 |
| ATX power connector | ATX2 | Fan connector header | FAN5 |
| PS/2 mouse port | CN1 | Audio in - MPEG (DVD/TV card) | J9 |
| USB port 1 | CN2 | Modem audio connector | J10 |
| USB port 2 | CN3 | TV card (video) connector | J11 |
| Parallel port | CN4 | Audio in - CD-ROM | J12 |
| Serial port 1 | CN5 | Game interface | J13 |
| Serial port 2 | CN6 | Power switch | J15/Pins 1 & 2 |
| RJ-45 Ethernet connector | CN7 | IR connector | J15/Pins 6-10 |
| Line out | CN8 | IDE interface LED | J15/Pins 13-16 |
| Line in | CN9 | Power LED | J15/Pins 18-20 |
| Microphone in | CN10 | Reset switch | J15/Pins 22 & 23 |
| IDE interface 2 | CN11 | Speaker | J15/Pins 24-27 |
| IDE interface 1 | CN12 | Chassis intrusion connector | J16 |
| Ultra2 Wide SCSI interface (channel B) | CN13 | SCSI LED | JP23/Pins 1 & 2 |
| Narrow SCSI interface (channel B) | CN14 | Server management (EXTSMI) connector | JP31 |
| Ultra2 Wide SCSI interface (channel A) | CN15 | Front panel connector | JP32 |
| Floppy drive interface | CN16 | Wake-on modem connector | JP33 |
| CPU 1 fan power | FAN1 | Wake-on LAN connector | JP34 |
| CPU 2 fan power | FAN2 | 32-bit PCI slots | PC1 - PC6 |
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
| » | Onboard SCSI enabled | J19 | Open |
| Onboard SCSI disabled | J19 | Closed | |
| Fan 3 not monitored | J21 | Open | |
|
Fan 3 monitored by software application | J21 | Closed |
| Fan 4 not monitored | J22 | Open | |
| Fan 4 monitored by software application | J22 | Closed | |
| » | CMOS memory normal operation | JP9 | Pins 1 & 2 closed |
| CMOS memory clear | JP9 | Pins 2 & 3 closed | |
| » | Onboard sound enabled | JP24 | Open |
| Onboard sound disabled | JP24 | Closed | |
| » | Onboard LAN enabled | JP25 | Open |
| Onboard LAN disabled | JP25 | Closed | |
| » | Factory configured - do not alter | JP35 | Open |
DIMM CONFIGURATION |
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Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
8MB |
(1) 1M x 64 |
None |
None |
None |
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
None |
None |
16MB |
(1) 2M x 64 |
None |
None |
None |
24MB |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
None |
32MB |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
None |
None |
32MB |
(1) 4M x 64 |
None |
None |
None |
48MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
None |
64MB |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
None |
None |
64MB |
(1) 8M x 64 |
None |
None |
None |
80MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
96MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
None |
96MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
128MB |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
None |
None |
128MB |
(1) 16M x 64 |
None |
None |
None |
144MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
160MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
None |
192MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
256MB |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
None |
None |
256MB |
(1) 32M x 64 |
None |
None |
None |
272MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
288MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
320MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
384MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
None |
384MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
512MB |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
512MB |
(1) 32M x 64 |
(1) 32M x 64 |
None |
None |
528MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 1M x 64 |
(1) 1M x 64 |
544MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 2M x 64 |
(1) 2M x 64 |
576MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 4M x 64 |
(1) 4M x 64 |
640MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 8M x 64 |
(1) 8M x 64 |
768MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 32M x 64 |
None |
768MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 16M x 64 |
(1) 16M x 64 |
1024MB |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 32M x 64 |
(1) 32M x 64 |
| Note: Board supports SDRAM
memory. Note: Registered and nonregistered SDRAM can not be mixed. |
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CPU FREQUENCY SELECTION |
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CPU speed |
Clock speed |
Multiplier |
S4/1 | S4/2 | S4/3 | S4/4 |
| 300MHz | 66MHz | 4.5x | Off | On | Off | On |
| 333MHz | 66MHz | 5.0x | Off | Off | On | On |
| 350MHz | 100MHz | 3.5x | On | Off | Off | On |
| 366MHz | 66MHz | 5.5x | Off | Off | Off | On |
| 400MHz | 66MHz | 6.0x | On | On | On | Off |
| 400MHz | 100MHz | 4.0x | Off | On | On | On |
| 433MHz | 66MHz | 6.5x | On | On | Off | Off |
| 450MHz | 100MHz | 4.5x | Off | On | Off | On |
| 466MHz | 66MHz | 7.0x | On | Off | On | Off |
| 500MHz | 100MHz | 5.0x | Off | Off | On | On |
| 550MHz | 100MHz | 5.5x | Off | Off | Off | On |
| 600MHz | 100MHz | 6.0 | On | On | On | Off |
DIAGNOSTIC LED(S) |
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LED |
Color |
Status |
Condition |
LED1 |
Yellow |
On |
Network connected at 100Mbps |
LED1 |
Yellow |
Off |
Network connected at 10Mbps |
LED2 |
Green |
On |
Network connection is good |
LED2 |
Green | Off | Network connection is broken |