- Laptops
- Laptop
2000-0122
Dell 2000-0122 on laptop: ePSA finds excessive memory errors
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
Dell's ePSA diagnostics found memory errors, and too many of them (2000-0122). If Windows starts, back up your data, update the BIOS and repeat the diagnostics; reseating or swapping memory modules is a job for a technician.
Safety first
Stop and check this first
- Do not open the laptop to reseat or swap the memory: on most current Dell laptops the battery stays connected inside and a slip can damage the board or the battery. A technician does this with the service manual.
- With memory errors, Windows can freeze or save damaged files: keep a current backup until the diagnostics come back clean.
Safe checks you can perform
- Full ePSA code and message
- Back up your data while Windows starts
- BIOS on the latest version
- Repeat the diagnostics and use Dell's online tool
Leave these tasks to a qualified professional
- Do not attempt this professional task: Reseat the memory and test module by module
- Do not attempt this professional task: Test with known good memory and replace
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Reseat the memory and test module by module
What they doThe technician powers the laptop down, reseats the memory per the service manual and repeats the diagnostics with one module at a time and in each slot.
They must show youthe diagnostics result with each module and slot.
In writingwhich module or slot fails and the code of each run.
Test with known good memory and replace
What they doThey fit a module of the same type that is known to work; if 2000-0122 disappears they replace the faulty module, and if it persists they assess the board through Dell's warranty or with a written quote.
They must show youdiagnostics without memory errors after the repair.
In writingthe reference of the module fitted or the reason the board is blamed, and the final test.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Checks and evidence, step by step
Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
- 1
Full ePSA code and message
No special tools
Procedure
- Who:
- you.
- How:
- when Dell's pre-boot diagnostics (ePSA or SupportAssist) stop with the error, photograph the screen showing 2000-0122, the full text and the Service Tag label.
- Result that matters:
- that the message matches memory errors detected and excessive errors detected.
- If it matches:
- follow the steps on this page.
- If the number or text is different:
- look it up in Dell's table; 2000-0121 means errors that were repaired and 2000-0123 is a different memory error.
- Evidence to keep:
- a clear photo of the diagnostics screen and of the Service Tag.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- 2
Back up your data while Windows starts
No special tools
Procedure
- Who:
- you.
- How:
- if Windows still starts, copy documents and photos now to an external drive or the cloud, before updates or long tests.
- Result that matters:
- having a complete copy off the laptop.
- If the copy finishes:
- you can continue with the BIOS and diagnostics without risking your files.
- If the laptop freezes or restarts during the copy:
- stop, note when it happened and tell the technician.
- Evidence to keep:
- the list of folders copied and any freeze or message during the copy.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- 3
BIOS on the latest version
No special tools
Procedure
- Who:
- you, if Windows starts.
- How:
- on Dell's support page for your Service Tag, install the latest BIOS with the charger connected and without turning the laptop off during the install.
- Result that matters:
- that the installed BIOS is the latest one published for your model.
- If it installs:
- repeat the diagnostics to see whether 2000-0122 still appears.
- If the install fails or Windows does not start:
- do not keep retrying; go to Dell's online tool or support.
- Evidence to keep:
- BIOS version before and after the update.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- 4
Repeat the diagnostics and use Dell's online tool
No special tools
Procedure
- Who:
- you.
- How:
- run the pre-boot diagnostics again the same way as the first time. If 2000-0122 repeats, enter the code on Dell's SupportAssist Pre-Boot System Performance Check page (the ePSA online tool), which gives solutions and, under warranty, a parts work order.
- Result that matters:
- whether 2000-0122 appears again with the BIOS up to date.
- If it no longer appears:
- the update solved it; watch that it does not return.
- If it appears:
- follow Dell's warranty process or ask for a written professional diagnosis.
- Evidence to keep:
- the Dell case number and photos of both diagnostic runs.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Laptops
- Brand
- Dell
- Product type
- Laptop
Known code variants
- 2000 0122
- 20000122
- Dell 2000-0122
- ePSA 2000-0122
- excessive memory errors
- PSA 1000-0122
What it means
In Dell's ePSA table, 2000-0122 is "Memory - Memory errors were detected and excessive errors were detected"; on older PSA, 1000-0122 is a memory test initialization failure. Dell says the error may involve the system board or the memory. Its steps are to update the BIOS, reseat the memory, test one module at a time and try a known good module of the same type, repeating the diagnostics after each step. The code alone does not say whether a module, its slot or the board is at fault.
Warnings and stop conditions
- Higheditorial warning
Do not open the laptop to reseat or swap the memory: on most current Dell laptops the battery stays connected inside and a slip can damage the board or the battery. A technician does this with the service manual.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- Mediumeditorial warning
With memory errors, Windows can freeze or save damaged files: keep a current backup until the diagnostics come back clean.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
Symptoms and causes
Probable causes · in order
- Faulty memory moduleCommon
The error follows one specific module when the technician tests modules one at a time or fits a known good one of the same type.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- Poorly seated modulePossible
The error disappears when the technician powers down and reseats the memory, which is Dell's first hardware step for this code.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- Outdated BIOSPossible
The error stops after installing the latest BIOS; Dell requires it before taking the case to its online tool.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
- System board or memory slotPossible
Dell says the board may be involved. Suspect it when every module fails in the same slot or known good memory still gives 2000-0122.
Evidence: Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
Virtual technician
Does 2000-0122 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Reference Table of ePSA, PSA Error Codes, and Troubleshooting Steps (2000-0NNN Series)
Dell · 2026 · official_doc
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