25:
712:
193:. The specification had support from major OEMs (Compaq, Dell, Fujitsu, Gateway, Hewlett-Packard, IBM, Intergraph, NEC, Siemens Nixdorf, and UMAX) and motherboard manufacturers (Acer, Asus, Supermicro and Tyan) and was updated (1.1) in February 1999. As of 2008, the specification has been discontinued and the URL www.wtx.org no longer hosts a website and has not been owned by Intel since at least 2004.
90:
219:
location, and allow for high volume airflow through a portion of the chassis where the processors are positioned. This allowed for standard form factor motherboards and chassis to be used to integrate processors with more demanding thermal management requirements.
227:, maximum WTX motherboard size was 14 × 16.75 in (356 × 425 mm). This was intended to provide more room in order to accommodate higher numbers of integrated components.
295:
54:
230:
WTX computer cases were backwards compatible with ATX motherboards (but not vice versa), and sometimes came equipped with ATX power supplies.
753:
465:
690:
288:
196:
This form factor was geared specifically towards the needs of high-end systems, and included specifications for a WTX
777:
746:
76:
47:
782:
190:
281:
474:
739:
242:: a version of ATX which has a form factor of 304.8 × 330.2 mm (12 × 13 in).
772:
650:
37:
41:
33:
216:
615:
567:
268:
58:
314:
182:
727:
304:
212:
174:
8:
559:
186:
719:
599:
498:
437:
429:
197:
389:
376:
550:
323:
263:
258:
723:
185:
in
September 1998, for its use at high-end, multiprocessor, multiple-hard-disk
766:
674:
583:
380:
208:
171:
711:
273:
666:
642:
591:
453:
623:
575:
538:
530:
522:
514:
506:
482:
123:
111:
490:
445:
413:
340:
332:
99:
658:
631:
201:
178:
405:
364:
348:
245:
239:
89:
607:
397:
224:
135:
207:
The WTX specification was created to standardize a new
93:ATX motherboard size comparison; rear is on left.
764:
46:but its sources remain unclear because it lacks
200:(PSU) using two WTX-specific 24-pin and 22-pin
747:
289:
754:
740:
296:
282:
303:
77:Learn how and when to remove this message
691:Small Form Factor Special Interest Group
248:: Server Workstation Technology Extended
88:
765:
277:
16:Motherboard form factor specification
706:
18:
13:
14:
794:
252:
710:
259:Intel's 1998 WTX case definition
23:
168:Workstation Technology Extended
1:
157:(356 × 425 mm)
148:(305 × 330 mm)
139:(305 × 244 mm)
127:(284 × 208 mm)
115:(244 × 244 mm)
103:(229 × 191 mm)
726:. You can help Knowledge by
177:specification introduced by
7:
269:WTX Power Supply connectors
233:
10:
799:
705:
264:WTX Form Factor definition
146: Extended ATX (EATX)
685:
549:
464:
375:
322:
311:
778:Motherboard form factors
32:This article includes a
783:Computer hardware stubs
61:more precise citations.
160:
305:Computer form factors
92:
215:, fix the relative
773:IBM PC compatibles
161:
34:list of references
735:
734:
720:computer hardware
700:
699:
466:Small form factor
198:power supply unit
87:
86:
79:
790:
756:
749:
742:
714:
707:
693:
678:
670:
662:
654:
646:
638:
627:
619:
611:
603:
595:
587:
579:
571:
563:
542:
534:
526:
518:
510:
502:
494:
486:
478:
457:
449:
441:
433:
425:
417:
409:
401:
393:
368:
360:
352:
344:
336:
298:
291:
284:
275:
274:
158:
154:
149:
145:
140:
133:
128:
121:
116:
109:
104:
97:
82:
75:
71:
68:
62:
57:this article by
48:inline citations
27:
26:
19:
798:
797:
793:
792:
791:
789:
788:
787:
763:
762:
761:
760:
703:
701:
696:
689:
681:
673:
665:
657:
649:
641:
630:
622:
614:
606:
598:
590:
582:
574:
566:
558:
545:
537:
529:
521:
513:
505:
497:
489:
481:
473:
460:
452:
444:
436:
428:
420:
412:
406:EATX (Extended)
404:
396:
388:
371:
363:
355:
347:
339:
331:
318:
307:
302:
255:
236:
159:
156:
152:
150:
147:
143:
141:
138:
131:
129:
126:
119:
117:
114:
107:
105:
102:
95:
83:
72:
66:
63:
52:
38:related reading
28:
24:
17:
12:
11:
5:
796:
786:
785:
780:
775:
759:
758:
751:
744:
736:
733:
732:
715:
698:
697:
695:
694:
686:
683:
682:
680:
679:
671:
663:
655:
647:
639:
628:
620:
612:
604:
596:
588:
580:
572:
564:
560:EPIC (Express)
555:
553:
547:
546:
544:
543:
535:
527:
519:
511:
503:
495:
487:
479:
470:
468:
462:
461:
459:
458:
450:
442:
434:
426:
418:
410:
402:
394:
385:
383:
373:
372:
370:
369:
361:
353:
345:
337:
328:
326:
320:
319:
312:
309:
308:
301:
300:
293:
286:
278:
272:
271:
266:
261:
254:
253:External links
251:
250:
249:
243:
235:
232:
151:
142:
130:
118:
106:
94:
85:
84:
67:September 2012
42:external links
31:
29:
22:
15:
9:
6:
4:
3:
2:
795:
784:
781:
779:
776:
774:
771:
770:
768:
757:
752:
750:
745:
743:
738:
737:
731:
729:
725:
722:article is a
721:
716:
713:
709:
708:
704:
692:
688:
687:
684:
676:
672:
668:
664:
660:
656:
652:
648:
644:
640:
636:
635:
629:
625:
621:
617:
613:
609:
605:
601:
597:
593:
589:
585:
581:
577:
573:
569:
565:
561:
557:
556:
554:
552:
548:
540:
536:
532:
528:
524:
520:
516:
512:
508:
504:
500:
496:
492:
488:
484:
480:
476:
472:
471:
469:
467:
463:
455:
451:
447:
443:
439:
435:
431:
427:
423:
419:
415:
411:
407:
403:
399:
395:
391:
387:
386:
384:
382:
378:
374:
366:
362:
358:
354:
350:
346:
342:
338:
334:
330:
329:
327:
325:
321:
316:
310:
306:
299:
294:
292:
287:
285:
280:
279:
276:
270:
267:
265:
262:
260:
257:
256:
247:
244:
241:
238:
237:
231:
228:
226:
221:
218:
214:
210:
205:
203:
199:
194:
192:
188:
184:
180:
176:
173:
169:
165:
137:
125:
113:
101:
91:
81:
78:
70:
60:
56:
50:
49:
43:
39:
35:
30:
21:
20:
728:expanding it
717:
702:
633:
421:
356:
229:
223:Bigger than
222:
211:and chassis
206:
204:connectors.
195:
191:workstations
167:
163:
162:
136:Standard ATX
73:
64:
53:Please help
45:
675:CoreExpress
584:COM Express
381:Workstation
213:form factor
209:motherboard
175:form factor
172:motherboard
59:introducing
767:Categories
667:mobile-ITX
592:ESMexpress
313:Listed by
155: WTX
618:(102×102)
578:(120×120)
562:(165×115)
541:(140×147)
533:(150×150)
525:(170×170)
517:(203×170)
509:(264×267)
501:(203×244)
493:(229×191)
485:(244×244)
477:(254×228)
456:(367×244)
454:Ultra ATX
448:(305x267)
440:(330×229)
432:(325×267)
424:(356×425)
416:(330×216)
408:(305×330)
400:(305×244)
392:(351×305)
367:(419×330)
359:(356×425)
351:(345×381)
343:(305×330)
335:(411×330)
317:size (mm)
217:processor
626:(100×72)
624:Pico-ITX
610:(114×95)
602:(114×95)
594:(125×95)
586:(125×95)
576:Nano-ITX
570:(149×71)
551:Embedded
539:Mini-STX
531:Mini ATX
523:Mini-ITX
515:Mini-DTX
507:microBTX
483:microATX
234:See also
170:) was a
124:Mini ATX
112:microATX
677:(58×65)
669:(60×60)
661:(70×70)
653:(82×80)
645:(95×55)
637:(96×90)
634:(-Plus)
632:PC/104
491:FlexATX
446:SSI CEB
414:Baby-AT
377:Desktop
341:SSI EEB
333:SSI MEB
324:Servers
187:servers
181:at the
100:FlexATX
55:improve
659:Qseven
643:ESMini
153:
144:
134:
132:
122:
120:
110:
108:
98:
96:
718:This
651:SMARC
202:Molex
179:Intel
166:(for
40:, or
724:stub
365:SWTX
349:HPTX
246:SWTX
240:eATX
189:and
616:NUC
608:XTX
600:ETX
568:ESM
499:DTX
475:NLX
438:LPX
430:BTX
422:WTX
398:ATX
357:WTX
315:PCB
225:ATX
183:IDF
164:WTX
769::
390:AT
44:,
36:,
755:e
748:t
741:v
730:.
379:/
297:e
290:t
283:v
80:)
74:(
69:)
65:(
51:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
