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Q: ¦p¦ó°Ï¤À BIOS ª©¥»?
A: AOpen ¥D¾÷ªO¥D¾÷ªOªºBIOS ª©¥»¦ì©ó¶}¾÷®É POST (Power-On Self Test)
ªþªñ. ³q±`·|¥H R ¦r¶}ÀY:
AP53/AX53 R3.80 Oct.22.1996
Q: ¦p¦ó°Ï¤À¥D ¾÷ ªO ªº ª© ¥»?
A: AOpen ¥D¾÷ªOªºª©¥»¥Hppppp-x ¼Ð¥Ü©ó PCB¤W, ³q±`·|¦³¤@¥Õ¦â¥~®Ø¨Ã
¥B¦ì©óPC Slot ªþªñ. ppppp ¥NªíAOpen ¤º³¡ project ¥N¸¹, -x ¬°ª©¥»¥N¸¹.
MB verison -1
95152-1
AP5T MB
Q: ¬°¦ó«ØùÖAOpen¥D¾÷ªO¨Ã¨S¦³§Ö¨ú (Cache) °O¾ÐÅ骺ÂX¥R¼Ñ?
A: ·íCPUªº³t«×·U§Ö®É¡A¬Û¹ïªº¥D¾÷ªO¤W¹ï«H¸¹®É¶¡®t(timing)ªº³]-p¤]§ó¥[§xÃø
»P½ÆÂø¡A¨C¤@±ø«H¸¹½u(trace)¤Î¹s¥ó©µ¿ð§¡»Ý¦C¤J¦Ò¼{¡A¨Ï¥Î§Ö¨ú°O¾ÐÅéÂX¥R
´¡¼Ñ³]-p®É¡A´¡¼Ñ¥»¨-±N¾É-P2~3ns¤§©µ¿ð¡A¦Ó¥Ñª÷¤â«ü(golden finger)©µªø¦Ü§Ö
¨ú°O¾ÐÅé(PBSRAM)ªº«H¸¹½u¤S±N©µ¿ð1~2ns¡A¤@¥¹§Ö¨ú¼Ò²Õ©M´¡¼ÑÅܼö©Î¦~¤[
®ñ¤Æ®É±N¾É-P¨t²Î¤£Ã-©w¡C©Ò¦³«ØùÖAOpen¥D¾÷ªO¬Ò¤ä´©¤º«Ø(onboard)512K
B-1
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PBSRAM¡C¦pªG¬O¬°¤F¸û¨Î¤§¥\¯à(¬ù3%°ª©ó256KB)¡A§Ú-̱j¯P«Øij¨Ï¥Î¤º«Ø
512KB¤è¦¡¡A¤£µMÃ-©w¤§256KB±NÀu©ó¤£Ã-©w¨Ï¥Î´¡¼Ñ¤§512KB¡C«ØùÖAOpen
¦b1995¦~²Ä4©u§Y±À¥X¦¹ºØÆ[©À¡A¬O²Ä¤@®a-Ҿɦ¹ºØÆ[©À¤§¤½¥q¡C
Q: ½u©ÊÃ-À£¾¹ (Linear regulator) ¤Î¥æ´«¦¡Ã-À£¾¹ (Switching regulator) ¦³¦ó®t²§ ?
A: ¥æ´«¦¡Ã-À£¾¹§Q¥Î¤£Â_ªº¶}ÃöPower FET¤Î¹q·P¹q®e¥R©ñ¹q°j¸ô¨Ó-°À£, ¨ä®Ä²v
¸û°ª¦ýÃ-À£®ÄªG¸û®t, Âø°T¤Î¿ç®g¸û°ª. ¥D¾÷ªO¼t°Ó¦Ò¼{¥æ´«¦¡Ã-À£¾¹ªº-ì¦]
¬O¾á¤ß¥Ø«eªº½u©ÊÃ-À£¾¹®Ä²v¤£¨¬¥HÀ³¥I·s¤@¥NªºCPU, ¨ä¹ê³o¸ò¼t°Ó³]-p¤Î
Layoutªº¥\¤O¦³Ãö. ¸ò¾Ú¥Ø«eAOpen RD³¡ªù´ú¸ÕIntel PP/MT-233, K6-166/200/233
(AP5T¾ÞWinstine97) ªºµ²ªG, CPU³Ì°ª·Å«×¬ù53«×, ´²¼ö¤ù³Ì°ª·Å«×¬ù60«×,Ã-À£
IC³Ì°ª·Å«×¬ù79«×. Winstine97¤´µM¶]±o¬Û·í¨}¦n. ¤£¹L¬°¤ä´©§ó·s¤@¥NCPU(¤]
³\1998¦~) ,AOpen¤´·|¦Ò¼{¦b·s²£«~¤Á¤J¥æ´«¦¡Ã-À£¾¹.
Q: ¦P¨B (Synchronous) ¥æ´«¦¡Ã-À£¾¹©M«D¦P¨B (Asynchronous) ¥æ´«¦¡¦³¦ó®t
²§?
A: ¥æ´«¦¡Ã-À£¾¹§Q¥Î¤£Â_ªº¶}ÃöPower FET¤Î¹q·P¹q®e¥R©ñ¹q°j¸ô¨Ó-°À£. ¥Ø«e¤j
³¡¤Àªº³]-p¬°«D¦P¨B¥æ´«¦¡, §Q¥ÎSchottky ¤G·¥Åé§@¬°¹q¬y°j¸ô, ¥Ñ§Þ³NÆ[ÂI
¨Ó¬Ý, ¤´µM®ø¯ÓÆZ¤jªº¼ö¶q. AOpen ªº¦P¨B¥æ´«¦¡³]-p¨Ï¥Î¥t¤@ MOS FET §@¬°
¹q¬y°j¸ô, ¨Ã¥B»PMOS FET ¦P¨B°Ê§@ (¤@¶}¤@Ãö), ¦]¦¹·Å«×¶È¬° 36 «×¥ª¥k, ¤ñ
«D¦P¨B¥æ´«¦¡ 57 «×¬°§C.
Q: ¤°»ò¬O3V ¹L¹q¬y«OÅ@(Over-current Protection) ?
A: ¦b¶Ç²Î +5V/+12V Baby AT ©Î ATX ¥æ´«¦¡¹q·½¨ÑÀ³¾¹¤W, ¹L¹q¬y«OÅ@¬O«Ü±`
¨£ªº¹q¸ô. ¹ï©ó¸Ë¾÷®É¤£¤p¤ßªºµu¸ô, ¹L¹q¬y«OÅ@ªº½T«D±`¦³®Ä. ¦ý·s¤@¥Nªº
CPU ¤Î´¹¤ù²Õ¨Ï¥Î 3.3V ©Î 2.8V, ¨ä¶¡»Ý-nÃ-À£¾¹ IC ªºÂà´«, -ì¨Óªº
+5V/+12V¹L¹q¬y«OÅ@¦]¦ÓµLªk¥¿±`¹B§@. «ØùÖ (AOpen)¥D¾÷ªOªº¦P¨B¥æ´«¦¡
Ã-À£¾¹³]-p, ¨ã¦³ 3.3V (Vcpuio, chipset, PBSRAM, SDRAM) ¤Î 2.8V (CPU
®Ö¤ß¹qÀ£) ¹L¹q¬y«OÅ@ªº¥\¯à, °t¦X-ì¨Óªº¹q·½¨ÑÀ³¾¹¥i´£¨Ñ¥þ¤è¦ìªºµu¸ô«O
Å@¯à¤O.
Q: ¤°»ò¬OCPU ¹L¼ö«OÅ@(Thermal Protection)?
A: CPU ³t«×¶V°ª´²¼ö°ÝÃD¶V-«-n, ¦pªG¨Ï¥ÎªÌ¨S¦³¥¿½T¦w¸ËCPU -·®°, «D±`¦³
¥i¯à³y¦¨ CPU ¹L¼ö¥H¤Î¨t²Î¤£Ã-©w. AOpen ·s¤@¥Nªº¥D¾÷ªO¨ã¦³CPU ¹L¼ö
«OÅ@¹q¸ô, ·í CPU ¶W¹L¤@¹w©w·Å«×®É(55 «× C.), ¨t²Î·|¦Û°Ê-°§C CPU ³t«×¨Ã
¥B³z¹LÀ³¥Îµ{¦¡(¦p ADM, Advanced Desktop Manager) ²£¥Íĵ§i«H¸¹.
B-2
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Q: ¬°¦ó«ØùÖAOpen¥D¾÷ªO¦bCPU´¡¼ÑÃä ¦³ §ó ¦h ¤§ ¹q ®e ¡H
A: ¦b·sªº¤@¥NCPU¡A¹q·½Åܦ¨·U¨Ó·U-«-n¤§½ÒÃD¡C¥Ñ¼W¥[¹q®e¼Æ¶q¨Ó-°§C°ª³t/
°ª¹q·½¤§CPUªº¹qÀ£º§ªi(Voltage ripple/¤£Ã-©w¹q·½¾¸-µ)¡A¥i¨Ï±o¨t²Î§óéw¡C¬°¦¹¡A«ØùÖAOpen¹ï¥þ¨t¦C¤§¥D¾÷ªO¾¨¥i¯à¥[¤W·U¦hªº¹q®e¡A¼W¥[³\¦h¦¨
¥»¡A¦ý¤]¨Ï¨t²Î§ó¥[Ã-©w¡C
Q: ¬°¦ó«ØùÖAOpen¥D¾÷ ªO ¨Ï ¥Î ³\ ¦h ¹q ¸Ñ (Electrolytic) ¹q®e¦Ó¤£¨Ï¥Î©Z½è
(Tantalum) ¹q®e?
A: ¹q¸Ñ¹q®e«~½è¨Ì¾Ú«¬¸¹¤Î¼t°Ó®t²§·¥¤j . ¤@¯ë¨Ó»¡©Z½è¹q®eªº«~½è¤ñ¹q¸Ñ¹q®e
¦n, ¦ý»ù®æ©ù¶Q«~½èÀu¨}ªº¹q¸Ñ¹q®e¤ñ©Z½è¹q®e-n¦n. ³Ì¦- AOpen ¥D¾÷ªO
CPU®Ç¨Ï¥Î 100uF ªº©Z½è¹q®e¨Ó-°§C CPU ¹qÀ£º§ªi (voltage ripple), ¦ý·sªº
§Þ³N§ï¶i¦¨¥\ªº±À¥X 1000uF ·¥§CESR (Equivalent SerialResistor) ªº¹q¸Ñ¹q
®e. ¨ä ESR ¬° 0.15 ohm ¦Ó©Z½è¹q®e¤Ï¦Ó-n 0.7 ohm.
¥H¤U¬O¥Ø«e«ØùÖAOpen¨Ï¥Îªº¹q®e³W®æ:
©Z½è (Tantalum): SPRAGUE 100uF,
«¬¸¹ 595D107X06R3C2T,
³Ì¤j ESR : 0.7 ¼Ú©i (25 «× 100KHz)
¹q¸Ñ (Electrolytic): SANYO 1000uF,
«¬¸¹ 16MV1000CG,
³Ì¤j ESR : 0.15 ¼Ú©i (20 «× 100KHz)
¦P®É, ¶V¦h¹q®e¨Ã¤£¥NªíCPU ¹qÀ£¤@©w§ó¦n, ¯u¥¿Äpµ²¦b¹q®eªº¦ì¸m (layout).
¤ñ¸ûºë½Tªº¤èªk¬°¨Ï¥ÎÀx¦s¦¡¥Üªi¾¹ª½±µ´ú¶q CPU ¹qÀ£. ·íµM,¨Ï¥ÎªÌ«ÜÃø¦p
¦¹°µ. AOpen ¬ãµo³¡ªù§¹¥þ¿í³y Intel, AMD ¤Î Cyrix ªº³]-p³W½d, ¨Ã¥B³q¹L
Intel, AMD ¤Î Cyrix. ªº»{ÃÒ.
Q: ¤°»ò¬OLDCM (LAN Desktop Client Manager)¡H
A: LDCM¬OIntel ±ÂÅv´£¨Ñ(·íµM-n¥I¶O)ªº³nÅé, ¨ä¥Øªº¦bÀ°§U¤½¥q¤º³¡ªººô¸ôºÞ
²z¤H-û(Network Administrator)ºÊ·þ¤ÎºÞ²zClientºÝ(¨Ï¥ÎªÌ)ªº¨t²Î¸ê·½ .
LDCM¥²¶·°t¦XDMI BIOS¨Ï¥Î, ¨ä¹êAOpen¥D¾÷ªO§¡¬°DMI BIOS, ¥u¬O¥¼¤Á
B-3
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¤JLDCM³nÅé¦Ó¤v, ¤£¹LLDCM¶È¤ä´©ATI VGA¤ÎIntel Network¥d, ¦A¥[¤W¨äÀ³
¥Î©ó¿ì¤½«ÇÀô¹Ò, ¤@¯ë®a®x¨Ï¥ÎªÌÅãµM¨S¦³¥²-n¦h¥I¿ú¨ÓÁʶRLDCM.
Q: ¤°»ò¬OADM (Advanced Desktop Manager)?
A: ³o¬OAcer µo®iªº³nÅé , ¥¦Ãþ¦ü Intel LDCM, ¦ý¦³¤@¨Ç§ï¶i. ADM ¤£¥u¥Î©ó¿ì
¤½«Çºô¸ôÀô¹Ò, ¥¦¦P®É¥i¥Î©ó¨t²Îª¬ºAªº°»´ú , ¦p CPU -·®°°»´ú, ¨t²Î¹qÀ£°»
´ú¤Î CPU ¹L¼ö«OÅ@.
Features ADM 2.0 LDCM 3.0
VGA card
Network card
Support DMI BIOS 2.0
Support Win95
Support Win NT
Real-Time CPU/Memory
Utilization Monitoring
Multi-Machine
Monitoring on One
Screen
Remote Management
Protocol
Standard SNMP Trap
Remote File Transfer
¤£-- ¥u¦³ ATI
¤£-- ¥u¦³ Intel
Yes Yes
Yes Yes
No (ADM 2.1 ±N·|¤ä
´©)
Yes No
Yes No
¼Ð·Ç SNMP protocol Intel ±M¥ÎRAP
Yes (¦]¦¹¥i¥Î©ó¼Ð·Ç
³nÅé¦p HP Open
View)
No Yes
Yes
protocol
No
Q: ¤°»ò¬OMMX¡H
A: MMX¬O·s¤@¥NIntel Pentium PP/MT (P55C) ¤ÎPentium II (Klamath) CPUªº³æ
¦æ¦h«ü¥O(single line multiple instruction)§Þ³N¡AMMX¤§«ü¥O¦b¦h´CÅéÀ³¥Î¤W¯S§O
¦³®Ä(¦p3D¥ßÅé¼v¹³¡B3D-µ®Ä¡Bµø°T·|ij¸Ë¸m)¡C¦h´CÅéÀ³¥Îµ{¦¡-Y¨Ï¥ÎMMX«ü¥O
±N¥i¤j´T§ïµ½¤u§@®Ä¯à¡C«ØùÖAOpen¥D¾÷ªO¤W¦³¦Ü¤ÖÂù¹q·½¤ä´©P55C¡A¨Ã¤£»Ý-n
¯S®í¤§´¹¤ù¨Ó¤ä´©MMX CPU§Y¥i¨Ï¥Î¦¹¤@¥\¯à¡C
B-4
±`°Ý°ÝÃD
Q: SDRAM DIMM¥i©MFPM/EDO SIMM¤@°_¨Ï¥Î¶Ü?
A: FPM/EDO¶·¦b5VÀô¹Ò¤U¨Ï¥Î¡ASRDAM¶·¦b3.3V¤U¨Ï¥Î¡C¥Ø«eªº¥D¾÷ªO³]-p
¥i¦P®É´£¨Ñ¤£¦P¹q·½µ¹ DIMM©MSIMM¡A¦ý¸ê®Æ¶×¬y±Æ(Data Bus)¬O³s±µ¦b¤@°_
ªº¡A¬G¦bµu¼È®É¶¡¤U¡ASIMM©MDIMM¥i¦X¨Ö¨Ï¥Î¡A¦ý¦b¼Æ-Ó¤ëªø´Á¨Ï¥Î«á¡ASDRAM
ªº3.3V¸ê®Æ¿é¤J¸}¦ì(Data Input Line)±N³Q5V FPM/EDO¸ê®Æ¿é¥X¸}¦ì(Data
Output Line)©Ò·l®`¡A¦]¦¹§Ú-Ì·¥¤£±ÀÂË DIMM©MSIMM¦X¨Ö¨Ï¥Î¡C¤£¹L¦³¤@¨Ò¥~¡A
-Y±z¨Ï¥ÎªºSDRAM¥i¥H®e§Ô5V¹qÀ£(5V Tolerance)¡A¦pTI ©Î Samsung¥i¦b 3.3V
¹q·½¹B§@¤U±µ¨ü5V°T¸¹®É,¤~¥i¦X¨Ö¨Ï¥Î¡C
Manufacturer Model Suggested CAS
Samsung KM416511220AT-G12 2 Yes
NEC D4S16162G5-A12-7JF 2 No
Hitachi HM5216805TT10
Fujitsu 81117822A-100FN
TI
TI
TI
TI
TMX626812DGE-12
TMS626812DGE-15
TMS626162DGE-15
TMS626162DGE-M67
Latency Time
2 No
2 No
2 Yes
3 Yes
3 Yes
3 Yes
5V Tolerance
Q: -þ¤@¨ÇSDRAM ¦b AP5T/AX5T ¤W ´ú ¸Õ ¹L?
A: ¦³¤@-Ó«Ü-«-nªº°Ñ¼Æ·|¼vÅT SDRAM ªº³t«× , CAS Latency Time. ¥¦Ãþ¦ü
EDO ªº CAS Access Time ¦ý¬O¥Hclock state ¬°-p¶q³æ¦ì. INTEL TX chipset
¤ä´© 2 ©Î 3 clock ªº CAS Latency Time, ¥i¬O¦³¤@¨ÇSDRAM µLªk¦b INTEL
TX chipset ¤W¨Ï¥Î2 clock. ¥Ø«e AOpen ´ú¸Õ¹Lªº SDRAM ¦p¤U. ¦pªG±zµo²{
SDRAM ¦³¤£Ã-©w²{¶H, ½Ð¶i¤J BIOS setup --> Chipset Features -->
SDRAM(CAS Lat/RAS-to-CAS), ±N2/2 §ï¦¨ 3/3, ·N§Y3 clock ªº CAS
Latency.
B-5