At the end of August, the boss of a building materials trading company in Tianhe looked for on-site: all 32 office computers were Dell OptiPlex 3050 purchased in 2018 (i5 - 4590/4GB memory/500GB mechanical disk), boot for two or three minutes, open Excel circle, Kingdee KIS input receipt card to employees complain every day. IT budget approval plan is to replace all new, according to the brand of commercial machine RMB 4500/set to calculate RMB 144,000. Boss let's see: "repair can still be used?"
First test: Where is it stuck?
We took five of them for benchmarking, and the questions were very focused:
| index | measured value | judge |
|---|---|---|
| Boot to Desktop Available | 117-134 seconds | Mechanical disk + auto-start software multi-bottleneck in disk |
| CrystalDiskMark sequential reading | 102 MB/s | 5400 rpm mechanical disk normal level, but too slow for 2026 software environment |
| 4K Random Read | 0.52 MB/s | Caton culprit: system disk 4K performance is insufficient, SSD 1/60 |
| Memory Usage (Power-On Quiesce) | 3.4GB / 4GB (85%) | Memory is not enough, frequent reading and writing page files are pressed to the mechanical disk, a vicious circle |
| CPU usage (daily office) | 15-25% | i5 - 4590 quad-core is enough for OA/Excel/Kingdee, not a bottleneck |
Conclusion: CPU and motherboard did not reach the elimination line,Bottleneck 100% on "mechanical disk + 4GB memory" combination. This configuration is mainstream in 2018. Windows 10/11 + domestic OA + browser in 2026 (starting with 300MB memory per tab) has drained it. This is a typical "two pieces full blood resurrection" scenario, no need to change the machine.
Scheme comparison: upgrade vs renewal
| Item | Batch upgrade plan | Renew All |
|---|---|---|
| hardware | 240GB SATA SSD (titanium SC001, RMB 299/piece)+ DDR3 8GB (2×4GB, RMB 120/set) | i5/16GB/512GB SSD |
| Cost per unit | Hardware RMB 419 + working hours (batch dilution) ≈ RMB 380/set package price | About RMB 4500/set |
| Total cost of 32 units | $12,160 | $144000. |
| downtime | Assembly line operation, 25 minutes each, completed in two days on weekends | Data migration 1-2 hours per unit, approximately one week |
| desired effect | 19 seconds to boot, OA/Kingdee smooth, another 3 years | Full and smooth, with 5-8 years |
| data migration | System clone (Aomei DiskGenius), original mechanical disk changed to storage disk to retain data | Migration of user data on a per-machine basis with more effort |
Our portfolio recommendations:All 32 units were upgraded (RMB 12,000), and RMB 45,000 was given to 8 heavy posts such as finance and design for replacement of new machines.The total investment is RMB 57,000, which is RMB 87,000 less than the total change, and the heavy post experience is directly filled. The boss made the decision on the spot.
Batch operation assembly line: how to do 32 units in two days
Batch upgrade is not "do a single repair 32 times", to streamline. Our job list (Saturday and Sunday, 3 people):
- Pre-mastering (Friday night): Install Windows 10 22H2 LTSC + OA client + Kingdee KIS + common office software + activation, make standard image. 32 sets of hardware are exactly the same, one master is fully universal.
- Station A: disassembly and cloning(2 people): The original mechanical disk is attached to the clone machine, DiskGenius clones to SSD by partition (only clone system partition and user data partition, skip page file), average 18 minutes/set.
- Station B: PC build and expansion(1 person): SSD loaded into 2.5 inches, plus memory (4GB×2 groups of dual channels), ash cleaning and thermal paste (this batch of machine fan dust serious, conveniently done), the original mechanical disk formatted and reinstalled as a storage disk.
- Station C: Acceptance(Running until Sunday): startup timing, OA login test, Kingdee input test, check of desktop files and browser favorites of each user, and updating ledger with asset label.
A detail:The original mechanical disk is not removed, and it is divided into D disk storage.. Employee history files stay where they are, SSDs are only loaded with systems and software, data migration risks are zero, employees go to work on Monday desktops and files remain intact, just "computers suddenly get faster."
Acceptance data: Monday return visit
| index | pre-upgrade | after upgrade | promote |
|---|---|---|---|
| Boot to Desktop Available | 127 seconds (mean) | 19 seconds | 6.7 times |
| 4K Random Read | 0.52 MB/s | 31.8 MB/s | 61 times |
| Kingdee KIS Record Response | 2-4 sec/pen | immediately | Employee subjective evaluation "changed a computer" |
| Browser Multi-Open (15 tags) | stuck | Fluency (61% memory usage) | —— |
| Single-day complaints | Eleven in the week before the upgrade. | One week after upgrade0 | —— |
What machines deserve a batch upgrade and what doesn't?
Our judgment criteria (for enterprise IT procurement reference):
- worth upgrading: CPU is 4th generation Core i5 or above (or Ryzen 2000+), motherboard has no fault, pure office scene. After adding SSD+ memory, this kind of machine has the greatest experience improvement, the lowest marginal cost, and it will be fine to fight for 3 years.
- Not worth the upgradeCPU dual-core low-voltage old U (such as i3- 3110M), motherboard has dark disease, DDR2 platform, or business has heavily relied on AI local reasoning/large design software — this kind of direct change, upgrade is a waste of money.
- accounting formula: upgrade cost ÷ replacement cost < 15% and the machine is expected to last another 3 years — upgrade it. In this case 380/4500 = 8.4%, a very good deal.
ACCPC provides computer batch upgrade/batch PC build/complete machine procurement services for enterprises: on-site evaluation free of charge, scheme including old and new comparison calculation, batch operation weekend without shutdown, 3 months warranty after upgrade. Also do Guangzhou computer wholesale and complete machine assembly customization, enterprise procurement of more than 10 units have channel prices. 020-39029800.