FANUC Alarm SRVO-336 — DCS RAMCHK alarm %x,%x
FANUC SRVO-336 (“DCS RAMCHK alarm %x,%x”): A DRAM failure is detected. First check: Replace the CPU card. Likely part: Main board (Main CPU board) +1 more.
Updated 2026-08-29 · LogrobotLM reference
Description
A DRAM failure is detected.
Remedy · Remède
Replace the CPU card. Replace the main board. Refer to the troubleshooting section in the Controller Series Electrical Connection and Maintenance Manual.
Part to check / replace · Pièce à contrôler / remplacer
FANUC SRVO-336 points to the hardware below — start here before ordering. · SRVO-336 met en cause l'organe ci-dessous : commencez par là.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.
Frequently asked · Questions fréquentes
- What does FANUC alarm SRVO-336 mean?
- FANUC SRVO-336 (“DCS RAMCHK alarm %x,%x”): A DRAM failure is detected.
- How do you troubleshoot FANUC alarm SRVO-336?
- Replace the CPU card. Replace the main board. Refer to the troubleshooting section in the Controller Series Electrical Connection and Maintenance Manual.
- Which part is involved in FANUC SRVO-336?
- SRVO-336 points to Main board (Main CPU board), CPU card (CPU card). Confirm the real cause against the robot backup before replacing a part.
Related codes / Codes liés
Same hardware involved / Même matériel en cause
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →