the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
| 07 Jan 2026
Diagnostic and Recovery Method for Boot Failure in PC/104-Based Geophysical Resistivity Instruments Following CMOS Configuration Loss: On the ABEM Terrameter SAS-1000/4000 Using the PFM-540I Platform
Abstract. Boot failures in embedded geophysical instruments frequently arise from the loss of CMOS-retained BIOS parameters, a condition well documented in legacy computing systems that depend on fixed hardware configurations. The ABEM Terrameter SAS-1000/4000 relies on a PC/104 controller (PFM-540I), CompactFlash (CF) storage, and specialized BIOS settings to load its internal firmware. When the CMOS battery depletes, the BIOS reverts to factory defaults that are incompatible with the Terrameter's required hardware profile, resulting in complete boot failure and a black LCD screen. This paper describes a full diagnostic and recovery procedure involving external VGA/PS-2 interfacing, jumper validation, CMOS clearing and manual BIOS reconstruction. The restored system achieved 100% boot success, persistent CF detection and stable BIOS retention across multiple test cycles. The findings provide a validated engineering method for maintaining legacy PC/104-based scientific instruments vulnerable to CMOS configuration loss.
- Preprint
(825 KB) - Metadata XML
- BibTeX
- EndNote
Status: final response (author comments only)
- RC1: 'Comment on egusphere-2025-6396', Anonymous Referee #1, 23 Feb 2026
-
RC2: 'Comment on egusphere-2025-6396', Anonymous Referee #2, 05 Mar 2026
The boot failure caused by CMOS battery depletion and subsequent loss of BIOS parameters addressed in this paper is a common issue in PC/104-based embedded legacy scientific instruments. As a primary piece of equipment for field geophysical exploration, the ABEM Terrameter SAS-1000/4000 currently relies largely on manufacturer technical support or empirical practices for maintenance. This study effectively resolves practical challenges in industrial operation; however, as an academic paper, it is significantly deficient in core dimensions including theoretical depth, research scope, quantitative analysis, and academic argumentation, thus failing to meet the core requirements of an academic paper.
Â
The research focuses primarily on summarizing methodologies at the engineering and practical operation level, without conducting in-depth analysis of underlying hardware principles (e.g., the specific configuration principles of IDE timing parameters, the storage mechanism of CMOS chips, and the electrical coupling principles between jumpers and BIOS parameters). Nor does it present quantitative analysis of the occurrence probability of CMOS failures or the relationship between battery lifespan and environmental factors, resulting in relatively weak theoretical depth.
Â
A standard academic paper framework should include a comprehensive literature review (e.g., systematically sorting out the research status and gaps in CMOS failure recovery), comparative experiments (e.g., comparing the efficiency and effectiveness of different repair methods), and in-depth reflection in the discussion section (e.g., addressing research limitations and future theoretical exploration directions). In this paper, however, the literature review merely mentions that "CMOS depletion is a common problem" without collating the current research status, and the discussion section only concludes that "the method is effective" with no in-depth academic reflection.
Â
All experiments were conducted under controlled laboratory conditions, yet the core application scenario of this instrument is the complex field environment (e.g., extreme temperatures, high humidity, and lack of mains power). The paper does not explore simplified methods for rapid field diagnosis and recovery (such as portable peripheral interfaces, key points for on-site jumper inspection, and BIOS configuration techniques without laboratory conditions), leading to insufficient integration with actual field application scenarios.
Â
Minor flaws exist in the annotations of some figures and tables, image clarity, and reference formatting, all of which leave room for optimization.
Â
In summary, this manuscript reads more like a concise engineering technical solution, but it lacks core academic elementsm such as in-depth mechanism analysis, generalizability validation, and quantitative analysism required for a qualified academic paper. While the paper has certain practical value, this is an academic journal, and revisions must align with the standards of journal papers. If the manuscript is to be published in an international geophysical (GI) academic journal, extensive revisions are needed, including the addition of experiments, which will likely require a significant amount of time. Therefore, I recommend a decision of Reject and Resubmit, allowing the authors sufficient time to conduct thorough revisions.
Â
The specific revision suggestions are as follows:
(I) Supplement analysis of underlying mechanisms to enhance theoretical depth
- Add a new section entitled Fault Mechanism Analysis. Combining the hardware principles of the PC/104 architecture, IDE interface, and CMOS/BIOS, analyze the electrical coupling mechanism by which the loss of CMOS configuration leads to CF card detection failure, and explain the adaptation logic between BIOS timing parameters and CF cards.
- For the core BIOS configuration parameters, supplement explanations of their adaptation basis. Demonstrate the rationality of parameter selection by integrating the hardware manual of the PFM-540I controller and the firmware requirements of the ABEM Terrameter instrument.
- Combining relevant academic research on embedded system reliability, analyze how the method in this paper supplements and applies existing theories, and clearly define the academic contributions of this study.
(II) Expand research scope and supplement cross-platform validation experiments
- Select 2–3 models of PC/104-based geophysical resistivity instruments (or similar scientific instruments) from different brands, conduct validation experiments for failure recovery, and supplement relevant experimental data and result analysis.
- Summarize the BIOS parameter adaptation rules for different instruments, and establish a Parameter Configuration Table for CMOS Failure Recovery of PC/104-Based Instruments to provide a systematic reference for the repair of similar instruments.
- In the conclusion section, clearly define the scope of application and limitations of the method in this paper to avoid overstating its generalizability.
(III) Add quantitative analysis and supplement academic data support
- Supplement quantitative data related to CMOS failures, such as analyzing the correlation between CMOS battery lifespan and temperature/humidity through investigation and experiments, and counting the occurrence probability of CMOS failures in such instruments.
- Conduct BIOS parameter optimization experiments, set different parameter combinations, and quantitatively compare the CF card detection success rate and instrument boot time to demonstrate the superiority of the parameters selected in this paper.
- Perform statistical analysis on the existing experimental data (e.g., calculating the confidence interval and significance level of the 15 cold boot experiments) to improve the academic reliability of the experimental results.
(IV) Improve the literature review and discussion section to strengthen academic argumentation
- Rewrite the literature review in the introduction section, comprehensively collating the research status of embedded system CMOS failure recovery, PC/104-based instrument maintenance, and geophysical instrument engineering. Identify the gaps in current research and clarify the research significance and academic contributions of this paper.
- Expand the discussion section by adding in-depth analysis of Research Limitations and Future Research Directions; insert a new subsection on Method Comparison to compare the efficiency and success rate of the standardized method in this paper with traditional empirical repair methods, thus proving the superiority of the proposed method.
(V) Supplement research on field adaptability and preventive maintenance to align with practical applications
- Add a new section entitled Optimized Field Operation Protocol, design portable adapter devices, propose a rapid diagnosis and recovery process for complex field environments, and clarify the key points of field jumper inspection and BIOS configuration.
- Add a new section entitled Preventive Maintenance Strategy, conduct quantitative research on CMOS battery lifespan to establish an early warning mechanism for battery replacement; design a backup scheme for CMOS BIOS parameters to realize the upgrade from "post-failure recovery" to the "full-life-cycle maintenance" of the instrument.
(VI) Revise flaws in scholarly norms and minor details
- Conduct a full check of the manuscript to correct spelling and terminology errors, and unify the expression of professional terms.
- Optimize reference formatting in accordance with academic journal standards, supplement missing issue/volume numbers, increase the proportion of academic research literatures published in the past 5 years, and distinguish the citation formats of technical manuals, industry specifications, and academic papers.
- Improve figure and table annotations by adding detailed descriptions of components and experimental scenarios to all figures and tables, and ensure a one-to-one correspondence between figure/table numbers and their citations in the main text.
- Streamline the abstract and conclusion sections by deleting redundant content. The abstract should highly summarize the research background, methods, results, and core contributions; the conclusion should refine the engineering and academic value of the research, and clearly state its generalizability and future research directions.
(VII) Other Requirements
- The authors must provide a point-by-point response to the above revision suggestions, clearly stating the revised content, supplemented experimental data/analyses, and revised positions, with corresponding annotations in the revised manuscript.
- Complete experimental data and raw records for the supplemented cross-platform validation experiments and quantitative analysis experiments must be provided to ensure the reproducibility of the experiments.
- The overall structure of the revised manuscript should be optimized, and I recommend the following structure consistent with the standards of academic papers: Introduction (Research Background + Literature Review + Research Significance) → Fault Mechanism Analysis → Research Methodology → Experimental Validation (Laboratory + Field) → Results and Analysis → Discussion (Method Comparison + Limitations + Future Directions) → Conclusion.
Â
Citation: https://doi.org/10.5194/egusphere-2025-6396-RC2
Viewed
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 177 | 89 | 16 | 282 | 17 | 15 |
- HTML: 177
- PDF: 89
- XML: 16
- Total: 282
- BibTeX: 17
- EndNote: 15
Viewed (geographical distribution)
| Country | # | Views | % |
|---|
| Total: | 0 |
| HTML: | 0 |
| PDF: | 0 |
| XML: | 0 |
- 1
The reviewed ms describes a method for fixing a certain type of boot failure in a legacy device. The diagnostics and recovery method are described clearly and may be applied to other aging geophysical instrumentation. The topic is within the scope of the journal and is actual and relevant.
Criticism is minor and refers mainly to technical issues that should be easy to correct. It is listed below.
1) With the exception of the appendix, Figures and the Table are not referred to in the text. Please include reference to them in the descriptions given in the text.
2) Figure 1 is blurred and Figure 5 has too small annotations. Please provide Figures of good quality so that they are readable.
3) Punctuation and wording should perhaps be:
-line 22 "Many geophysical instruments, particularly legacy ones still widely used for field measurements, depend on ..." (unless you think that this problem applies only to devices for resistivity investigation),
-line 43 "... the display remained black, an expected result when ...",
-line 47 "These mirrored failure modes can be seen in ...",
- line 78 "The testing procedure consists of three stages as descripbed below."Â
4) A sentence should be added to the introduction to answer the question which purpose the specific instrument you treat (ABEM Terrameter SAS-1000/4000) serves when returned to functionality.
5) The text in general is rather concise and terse and it contains a number of not introduced abbreviations. Since practically all of them are generally known to a reader familiar with IT and computer hardware, this is not incorrect. But I wonder if sections 2 and 3 should not be formulated in somewhat more detail for the sake of better understanding for a wider audience. I leave this question to the discretion of the Editor.
I recommend publication after minor revision.