E344 · Source-scoped pinout variants

Miniature four-position floppy-drive power housing engineering reference

Named wiring from the pinout research; connector shape alone does not establish capabilities.

Open field note Source trail

Source checked · no independent review claimed · Fabrication approved: no

Miniature four-position floppy-drive power (Berg) engineering reference original orientation schematic — Original pinout diagram; read the exact variant and view below. Not to scale.

Contact count

Not asserted

Source-scoped connector interface

Mating boundary

Shape is not the verdict.

Check the exact device and mating connector.

Orientation

How to read this profile

Read the exact variant view convention. Schematic layouts do not establish physical positions.

Source-scoped identification facts

Each value retains its exact example, role and measurement axis. Facts from different parts must not be combined into an invented component.

Documented examples; not a mating drawing or compatibility approval
Positions / cavity span	4 (Claim C368A)S578Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V140 / Source-scoped historical or exact-part identity only. No wiring, pinout, universal fit, cable/terminal assembly, device rating, fabrication or publication approval.
Contact rows	1 (Claim C368A); 1 (171822-4)S578 · S578Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. TE 171822-4 is a four-position, single-row receptacle housing for wire-to-board crimp termination in its AMP EI series, not the same four-position housing as TE 1-480424-0. \| V140 / Source-scoped historical or exact-part identity only. No wiring, pinout, universal fit, cable/terminal assembly, device rating, fabrication or publication approval. 171822-4. Documented role: socket. Housing has one row, distinct from5.08mm MATE-N-LOK form. Voltage/current are manufacturer part attributes, not floppy harness approval.
Contact pitch	2.5 mm Source-described pitch / centerline (Claim C368B); 2.5 mm published contact centerline (171822-4)S575 · S578 · S578Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. V140 / Source-scoped historical or exact-part identity only. No wiring, pinout, universal fit, cable/terminal assembly, device rating, fabrication or publication approval. 171822-4. Documented role: socket. Housing has one row, distinct from5.08mm MATE-N-LOK form. Voltage/current are manufacturer part attributes, not floppy harness approval.
Dimensions / axis	14 mm connector length (171822-4); 5.75 mm connector height (171822-4)S578Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 171822-4. Documented role: socket. Housing has one row, distinct from5.08mm MATE-N-LOK form. Voltage/current are manufacturer part attributes, not floppy harness approval.
Connector role	socket (171822-4)S578Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 171822-4. Documented role: socket. Housing has one row, distinct from5.08mm MATE-N-LOK form. Voltage/current are manufacturer part attributes, not floppy harness approval.
Coupling / latch	Locking mating retention; free-hanging inline housing (171822-4)S578Named source examples retain separate role, part, view and axis limits; values are not a universal family specification. 171822-4. Documented role: socket. Housing has one row, distinct from5.08mm MATE-N-LOK form. Voltage/current are manufacturer part attributes, not floppy harness approval.
Manufacturer	TE Connectivity (171822-4)S578Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V140 / Source-scoped historical or exact-part identity only. No wiring, pinout, universal fit, cable/terminal assembly, device rating, fabrication or publication approval.
Series	AMP EI (171822-4)S578Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V140 / Source-scoped historical or exact-part identity only. No wiring, pinout, universal fit, cable/terminal assembly, device rating, fabrication or publication approval.
Exact part / implementation	171822-4 (171822-4)S578Recorded source-scoped values; named examples do not describe every family variant or establish compatibility. V140 / Source-scoped historical or exact-part identity only. No wiring, pinout, universal fit, cable/terminal assembly, device rating, fabrication or publication approval.

Not recorded: Nominal contacts, Populated contacts, Contact gender / arrangement, Mounting, Keying / polarization, Shell / form, Recorded markings, View convention. Unknown fields stay unknown; illustrations supply no measurements or pin assignments.

Recorded variant and source limits

Check the exact device manual before wiring or applying power.
Intel ATX v3 floppy connector (historical reference only): Per Table 5-3.
SSI 2008 PSDG floppy power connector: Per Table 8.
Intel rev 2.1a historical floppy cable: Numbered assignments only. The retrieved Intel section supplies a table but no numbered mating-face or wire-side drawing; spatial orientation is UNVERIFIED. Do not mirror these numbers onto an unidentified cable end.

Report a correction to these facts →

Pins & wiring

Pinout

Choose the exact wiring. Pin numbers follow its stated view; a schematic does not establish physical positions. Check your exact device before wiring.

Dark pinout view

What the status labels mean

Confirmed: Recorded research passes agree within this variant; this is not independent human review or hardware validation.
Single source: Only one underlying document, or one pass, supports this assignment.
Device-specific: Supported for the named equipment or wiring only. Check your device’s manual.
Unverified: Missing or conflicting evidence. Do not wire from this row.
Not connected: The source explicitly says NC, no contact or no pin for this wiring.

Wiring variantIntel ATX v3 floppy connector (historical reference only)

Intel ATX v3 floppy connector (historical reference only)

View and evidence limits

Per Table 5-3.

P368 floppy power — **Agree**: 1 +5 V, 2/3 return, 4 +12 V — Same Intel historical-reference table in both; SSI adds evidence in A only. Contact order differs from LP4. Numbered housing-face orientation remains unverified.
The AMP/TE housing drawing was not retrieved; contact-number placement on the housing is not verified here.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

Intel ATX v3 floppy connector (historical reference only) — source-scoped contact map
Pin	Signal	What it does	Status
1	+5V DC	Power connection (+5V DC). Check the specified supply.	Confirmed Sources
2	COM	Ground reference and return.	Confirmed Sources
3	COM	Ground reference and return.	Confirmed Sources
4	+12V1 DC	Power connection (+12V1 DC). Check the specified supply.	Confirmed Sources

Sources (2)

S755 · Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide
Document 336521, Revision 2.1a, November 2023 · Section 5.2.2.3 Floppy Drive Connector - Do Not Include (For Historical Reference Only), AMP 171822-4, Table 5-3 Floppy Connector Pin-out, printed p. 56
S842 · Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide
2.1a; web date 11/01/2023 · Mechanical > Connectors > DC Connectors > Floppy Drive Connector — Do Not Include (For Historical Reference Only), Table 5-3: Floppy Connector Pin-out

SSI 2008 PSDG floppy power connector

View and evidence limits

Per Table 8.

P368 floppy power — **Agree**: 1 +5 V, 2/3 return, 4 +12 V — Same Intel historical-reference table in both; SSI adds evidence in A only. Contact order differs from LP4. Numbered housing-face orientation remains unverified.
The AMP/TE housing drawing was not retrieved; contact-number placement on the housing is not verified here.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

SSI 2008 PSDG floppy power connector — source-scoped contact map
Pin	Signal	What it does	Status
1	+5 VDC	Power connection (+5 VDC). Check the specified supply.	Confirmed Sources
2	COM	Ground reference and return.	Confirmed Sources
3	COM	Ground reference and return.	Confirmed Sources
4	+12 V4	Power connection (+12 V4). Check the specified supply.	Single source Sources

Sources (2)

S760 · SSI Forum (archive hosted by SNIA) · Power Supply Design Guideline for 2008 Dual-Socket Servers and Workstations (A Server System Infrastructure Specification)
Version 1.2.1 (copyright 2008-2012 SSI Forum) · Section 4.2.5, Table 8 Floppy Power Connector (Amp 171822-4), printed p. 13
S842 · Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide
2.1a; web date 11/01/2023 · Mechanical > Connectors > DC Connectors > Floppy Drive Connector — Do Not Include (For Historical Reference Only), Table 5-3: Floppy Connector Pin-out

Intel rev 2.1a historical floppy cable

View and evidence limits

Numbered assignments only. The retrieved Intel section supplies a table but no numbered mating-face or wire-side drawing; spatial orientation is UNVERIFIED. Do not mirror these numbers onto an unidentified cable end.

P368 floppy power — **Agree**: 1 +5 V, 2/3 return, 4 +12 V — Same Intel historical-reference table in both; SSI adds evidence in A only. Contact order differs from LP4. Numbered housing-face orientation remains unverified.
Intel names AMP 171822-4 (or equivalent); numbered color order is red/black/black/yellow. The guide explicitly labels this historical and Do Not Include.
The table establishes numeric cable assignment but no numbered spatial face. A bare housing does not identify installed wiring or the viewed side.

Schematic only · physical contact positions unconfirmed. Original drawing · not to scale. Scroll sideways if needed.

Intel rev 2.1a historical floppy cable — source-scoped contact map
Pin	Signal	What it does	Status
1	+5V DC	Power connection (+5V DC). Check the specified supply.	Confirmed Sources
2	COM	Ground reference and return.	Confirmed Sources
3	COM	Ground reference and return.	Confirmed Sources
4	+12V1 DC	Power connection (+12V1 DC). Check the specified supply.	Confirmed Sources

Sources (3)

S842 · Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide
2.1a; web date 11/01/2023 · Mechanical > Connectors > DC Connectors > Floppy Drive Connector — Do Not Include (For Historical Reference Only), Table 5-3: Floppy Connector Pin-out
S755 · Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide
Document 336521, Revision 2.1a, November 2023 · Section 5.2.2.3 Floppy Drive Connector - Do Not Include (For Historical Reference Only), AMP 171822-4, Table 5-3 Floppy Connector Pin-out, printed p. 56
S760 · SSI Forum (archive hosted by SNIA) · Power Supply Design Guideline for 2008 Dual-Socket Servers and Workstations (A Server System Infrastructure Specification)
Version 1.2.1 (copyright 2008-2012 SSI Forum) · Section 4.2.5, Table 8 Floppy Power Connector (Amp 171822-4), printed p. 13

Unknowns stay unknown.

Check the exact device manual before wiring or applying power.

Your next step

Use the detail without guessing past its limits.

Read the connector field note Recognition clues and practical checks.Work through a connection Keep exact equipment and cable requirements separate.

Source trail

Claims and sources

C811Gsource checked

Intel ATX v3 floppy connector (historical reference only): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide ↗
Revision history entry for 2.1 (printed p. 13): 12VHPWR renamed 12V-2x6 throughout, 'Cable Plug' side unchanged; Section 5.2.2.4.3 'Special Note on 12V-2x6 vs. 12VHPWR connectors' (printed p. 61); Table 5-7 (printed p. 66); Section 5.2.2.1, Table 5-1 Main Power Connector Pin-Out, printed p. 55; Section 5.2.2.2 Peripheral Connectors (AMP 1-480424-0 or Molex 15-24-4048), Table 5-2 Peripheral Connector Pin-out, printed pp. 55-56; Section 5.2.2.3 Floppy Drive Connector - Do Not Include (For Historical Reference Only), AMP 171822-4, Table 5-3 Floppy Connector Pin-out, printed p. 56; Section 5.2.2.4.1, Table 5-4 PCIe 2x3 Auxiliary Power Connector Pin Assignment (75 watts) and note 2, printed p. 57; Section 5.2.2.4.2, Table 5-5 PCIe 2x4 Auxiliary Power Connector Pin Assignment (150 Watts) and Table 5-6 Sense Pin Decoding, printed p. 58; Section 5.2.2.4.3, Table 5-7 PCIe 12V-2x6 Auxiliary Power Connector Pin Assignment (600 watts), printed p. 66; sideband definitions Section 3.3 and Table 3-6, printed pp. 29-32; Section 5.2.2.5, Table 5-9 +12 V Power 8 pin Connector Pin-Out, printed p. 67 · Source scope and unresolved evidence are preserved in the engineering variant.

Intel Corporation · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide ↗
Mechanical > Connectors > DC Connectors > Floppy Drive Connector — Do Not Include (For Historical Reference Only), Table 5-3: Floppy Connector Pin-out · Source scope and unresolved evidence are preserved in the engineering variant.

C811Hsource checked

SSI 2008 PSDG floppy power connector: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

SSI Forum (archive hosted by SNIA) · Power Supply Design Guideline for 2008 Dual-Socket Servers and Workstations (A Server System Infrastructure Specification) ↗
Section 4.2.1, Table 3 P1 Baseboard Power Connector, printed p. 10; Section 4.2.2, Table 4 Processor 0 / memory power Connector, printed p. 12; Section 4.2.2, Table 5 Processor 1 / memory power Connector, printed p. 12; Section 4.2.4, Table 7 Peripheral Power Connectors (Amp 1-480424-0), printed p. 13; Section 4.2.5, Table 8 Floppy Power Connector (Amp 171822-4), printed p. 13; Section 4.2.8, Table 11 PCI Express Graphic Card Power Connector(s), printed p. 15 · Source scope and unresolved evidence are preserved in the engineering variant.

C811Isource checked

Intel rev 2.1a historical floppy cable: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

3 source records support this profile. No independent engineering review or hardware validation is claimed.

Evidence behind this page

Scope first. Source second. Approval separate.

3 linked sources · 3 scoped claims · 0 sources with inspection/access flags.

Page scope: Original schematic; not to scale and not fabrication approval.

Assessment 2026-10-22 · earliest scheduled source review 2027-01-18. This is a recorded-date assessment, not a live source check. Page-level independent review is not established by this panel.

Inspect 3 source scopes, access limits and dates

S755 · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide

Intel Corporation · Manufacturer / product-owner domain · inspected 2026-10-20 · due 2027-01-18

Within inspection window

Scoped support: Exact named pinout variant only; not capability or compatibility approval.

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Revision history entry for 2.1 (printed p. 13): 12VHPWR renamed 12V-2x6 throughout, 'Cable Plug' side unchanged; Section 5.2.2.4.3 'Special Note on 12V-2x6 vs. 12VHPWR connectors' (printed p. 61); Table 5-7 (printed p. 66); Section 5.2.2.1, Table 5-1 Main Power Connector Pin-Out, printed p. 55; Section 5.2.2.2 Peripheral Connectors (AMP 1-480424-0 or Molex 15-24-4048), Table 5-2 Peripheral Connector Pin-out, printed pp. 55-56; Section 5.2.2.3 Floppy Drive Connector - Do Not Include (For Historical Reference Only), AMP 171822-4, Table 5-3 Floppy Connector Pin-out, printed p. 56; Section 5.2.2.4.1, Table 5-4 PCIe 2x3 Auxiliary Power Connector Pin Assignment (75 watts) and note 2, printed p. 57; Section 5.2.2.4.2, Table 5-5 PCIe 2x4 Auxiliary Power Connector Pin Assignment (150 Watts) and Table 5-6 Sense Pin Decoding, printed p. 58; Section 5.2.2.4.3, Table 5-7 PCIe 12V-2x6 Auxiliary Power Connector Pin Assignment (600 watts), printed p. 66; sideband definitions Section 3.3 and Table 3-6, printed pp. 29-32; Section 5.2.2.5, Table 5-9 +12 V Power 8 pin Connector Pin-Out, printed p. 67

S760 · Power Supply Design Guideline for 2008 Dual-Socket Servers and Workstations (A Server System Infrastructure Specification)

SSI Forum (archive hosted by SNIA) · Standards-organization domain · inspected 2026-10-20 · due 2027-01-18

Within inspection window

Scoped support: Exact named pinout variant only; not capability or compatibility approval.

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Section 4.2.1, Table 3 P1 Baseboard Power Connector, printed p. 10; Section 4.2.2, Table 4 Processor 0 / memory power Connector, printed p. 12; Section 4.2.2, Table 5 Processor 1 / memory power Connector, printed p. 12; Section 4.2.4, Table 7 Peripheral Power Connectors (Amp 1-480424-0), printed p. 13; Section 4.2.5, Table 8 Floppy Power Connector (Amp 171822-4), printed p. 13; Section 4.2.8, Table 11 PCI Express Graphic Card Power Connector(s), printed p. 15

S842 · ATX Version 3 Multi Rail Desktop Platform Power Supply Design Guide

Intel Corporation · Manufacturer / product-owner domain · inspected 2026-10-21 · due 2027-01-19

Within inspection window

Scoped support: Exact named pinout variant only; not capability or compatibility approval.

Not established / limitations: Source scope and unresolved evidence are preserved in the engineering variant.

Locator: Mechanical > Connectors > DC Connectors > Floppy Drive Connector — Do Not Include (For Historical Reference Only), Table 5-3: Floppy Connector Pin-out

Trace 3 claims to their source records

C811G · P368

Intel ATX v3 floppy connector (historical reference only): original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S755 · S842 · Evidence trail → (private workspace)

C811H · P368

SSI 2008 PSDG floppy power connector: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S760 · S842 · Evidence trail → (private workspace)

C811I · P368

Intel rev 2.1a historical floppy cable: original contact normalization. Statuses distinguish comparison agreement, source limits and named-device wiring.

Claim scope: Pinout variant only; see comparison and per-contact status. Not fabrication approval.

Source links: S755 · S760 · S842 · Evidence trail → (private workspace)

Prepare this page for review →Read the evidence method →

Recorded evidence only. An inspection date, publisher label, source link or generated packet is not independent technical review, hardware testing, fabrication approval or a compatibility verdict.