15203-1 is a Wistron motherboard used in Dell devices. Enginerys has 7 schematics, 5 boardviews and 10 BIOS dumps for this board, collected from public Telegram channels.
Check that 15203-1 matches the number printed on your PCB, including the revision. Where to find it →
15203-1 schematics
- ROUNDROCK MLK (15203-1 JM7HC) REV A00 PDF(PK)Schematic · 15203-1 · 5.80 MB · 4 Mar 2026Schematic pdf5.80 MB
- 15203-1 round rock mlk-bdw a00 0819Schematic · 15203-1 · 1.81 MB · 10 May 2025Schematic pdf1.81 MB
- 15203-1 Latitude 3350元件位置图Schematic · 15203-1 · 99.2 KB · 10 May 2025Schematic pdf99.2 KB
- AFS..ROUNDROCK MLK (15203-1 JM7HC) (REV A00) PDF
Wistron-designed motherboard schematic in PDF for the Roundrock MLK project, board 15203-1 at revision A00. The name also carries the code JM7HC.
Schematic · 15203-1 · 1.97 MB · 23 Feb 2024Schematic pdf1.97 MB - Latitude 3350 15203-1 round rock mlk-bdw a00 0819Schematic · 15203-1 · 3.44 MB · 26 Dec 2023Schematic pdf3.44 MB
- ROUNDROCK MLK (15203-1 JM7HC) (REV A00) PDFSchematic · 15203-1 · 5.80 MB · 16 Nov 2022Schematic pdf5.80 MB
- ROUNDROCK MLK (15203-1 JM7HC) (REV A00) PDF
Schematic in PDF format for the Roundrock MLK board, Wistron number 15203-1, Dell part JM7HC, revision A00, packed in a 5.79 MB RAR.
Schematic · 15203-1 · 5.79 MB · 14 Feb 2022Schematic rar5.79 MB
15203-1 boardviews
- ROUNDROCK MLK (15203-1 JM7HC) (REV A00) (BDV)PKBoardview · 15203-1 · 204 KB · 4 Mar 2026Boardview rar204 KB
- ROUNDROCK MLK (15203-1 JM7HC) (REV A00) (BDV)Boardview · 15203-1 · 249 KB · 16 Dec 2025Boardview zip249 KB
- Dell Latitude 13 3350 15203-1Boardview · 15203-1 · 1.89 MB · 26 Dec 2023Boardview cad1.89 MB
- ROUNDROCK MLK (15203-1 JM7HC) (REV A00) (BDV)Boardview · 15203-1 · 1.89 MB · 16 Nov 2022Boardview cad1.89 MB
- ROUNDROCK MLK (15203-1 JM7HC) (REV A00) (BDV)
Boardview for the Dell motherboard codenamed Roundrock MLK, board number 15203-1 with Dell part number JM7HC, revision A00.
Boardview · 15203-1 · 275 KB · 14 Feb 2022Boardview zip275 KB
15203-1 BIOS dumps
- 15203-1 TBBIOS · 15203-1 · 8.00 MB · 15 Nov 2025BIOS bin8.00 MB
- 3350 15203-1 bf okBIOS · 15203-1 · 8.00 MB · 15 Nov 2025BIOS bin8.00 MB
- RoundRock MLK MB 15203-1 BF telegram BIOS Repair-2025-09-16BIOS · 15203-1 · 9.12 MB · 25 Sept 2025BIOS zip9.12 MB
- 15203-1 TBBIOS · 15203-1 · 8.00 MB · 6 May 2025BIOS bin8.00 MB
- dell latitude 3350 mlk mb 15203-1.bakBIOS · 15203-1 · 8.00 MB · 26 Sept 2024BIOS bin8.00 MB
- Latitude 3350 15203-1 okBIOS · 15203-1 · 8.00 MB · 26 Dec 2023BIOS bin8.00 MB
- RoundRock MLK MB 15203-1 BF
BIOS firmware for a board labelled RoundRock MLK MB, number 15203-1, which fits Wistron's numbering scheme, so Wistron is the ODM.
BIOS · 15203-1 · 8.82 MB · 17 Oct 2023BIOS rar8.82 MB - DELL Latitude 3350 RoundRock MLK MB 15203 1 WORKING BIOS 100%
Working BIOS for the Dell Latitude 3350, board 15203-1 with platform name RoundRock MLK, marked as fully working in an 8.98 MB RAR archive.
BIOS · 15203-1 · 8.98 MB · 17 Jun 2023BIOS rar8.98 MB - dell 3350 15203-1BIOS · 15203-1 · 8.00 MB · 5 Apr 2023BIOS bin8.00 MB
- RoundRock MLK MB 15203-1 JM7HC REV A00
BIOS dump for a Dell board with platform code name RoundRock MLK, board number 15203-1, Dell part JM7HC, revision A00, packed as a RAR archive of about 4.5 MB.
BIOS · 15203-1 · 4.50 MB · 1 May 2021BIOS rar4.50 MB
Questions about 15203-1
Is there a schematic for 15203-1?
Yes. Enginerys lists 7 schematic files for 15203-1. Each entry links to the Telegram post where the PDF can be downloaded.
Is there a boardview for 15203-1?
Yes, 5 boardview files are listed. Open them with OpenBoardView or the viewer named on the file page.
Who makes the 15203-1 board?
15203-1 follows the Wistron numbering scheme (xxxxx-x). It is found in Dell devices.