HP ProDesk 680 G4 Repair & Upgrade Specialists
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The HP ProDesk 680 G4 is a solid machine and we keep them running. From no-power and boot faults to storage failure (with data recovery) and SSD/RAM upgrades, we repair and modernise the HP ProDesk 680 G4 across Australia — with honest advice on what’s worth it.
Fast, honest HP ProDesk 680 G4 repair & upgrades — no fix, no fee.
✔ No fix, no fee · ✔ 90-day warranty · ✔ Onsite, remote & workshop · ✔ Since 2001
Common HP ProDesk 680 G4 Faults We Repair
- Won’t turn on / amber or blinking power light
- Won’t boot, no POST or beep-code errors
- No display / no signal on boot
- Hard drive / SSD failure or bad sectors (with data recovery)
- Slow performance — SSD & RAM upgrade to extend its life
- Overheating, dust-clogged or noisy fans
- Failing power supply or swollen capacitors
- Won’t connect to Wi-Fi or the internet
- BIOS / CMOS battery & boot issues
- Windows won’t boot, or upgrade to Windows 10/11
About the HP ProDesk 680 G4
We repair and upgrade every HP ProDesk 680 G4 — power, motherboard and PSU faults, swollen capacitors, ageing hard drives (with full data recovery), memory and cooling. A quality SSD, a RAM bump and a clean Windows 10 or 11 install can make it feel new for a fraction of replacement cost. Genuine, OEM-spec and quality refurbished parts; out-of-warranty and end-of-life fleet units welcome.
Our Repair Process
1. Free phone or Quick Quote triage. 2. Diagnostic — we pinpoint the exact fault. 3. Upfront fixed quote — no fix, no fee. 4. Repair or upgrade with quality parts and a 90-day warranty. Onsite, remote or in our workshop, Australia-wide.
Why The Original PC Doctor
- Since 2001 — 24+ years repairing Australian computers
- No fix, no fee diagnostics
- 90-day warranty on parts and labour
- Onsite, remote & workshop options
- Genuine, OEM-spec & quality refurbished parts
- 1,300+ verified customer reviews
Get your HP ProDesk 680 G4 repaired or upgraded — talk to a technician now.
✔ No fix, no fee · ✔ 90-day warranty · ✔ Onsite, remote & workshop · ✔ Since 2001
HP ProDesk 680 G4 Repair FAQs
How much does a HP ProDesk 680 G4 repair or upgrade cost?
Every job starts with a free, no-obligation Quick Quote and an upfront fixed price. No fix, no fee, with a 90-day warranty — and we’ll tell you honestly whether a repair or an SSD/RAM upgrade is better value.
Can you recover data from a HP ProDesk 680 G4?
Yes — we recover documents, photos and files from a HP ProDesk 680 G4 even if it won’t boot, and can move them to a new SSD or PC.
Why won’t my HP ProDesk 680 G4 turn on?
Usually a failing power supply, swollen motherboard capacitors, a flat CMOS battery or a power-button fault — all commonly repairable. We diagnose it free and quote upfront.
Is it worth repairing or upgrading my HP ProDesk 680 G4?
Often yes — an SSD, a RAM bump and a clean Windows install can make it feel new for a fraction of a replacement; we give honest advice if it isn’t.
Do you repair the HP ProDesk 680 G4 out of warranty?
Absolutely — out-of-warranty and end-of-life machines are our specialty; we’re independent.
Where can you repair my HP ProDesk 680 G4?
Australia-wide — onsite, remote, and workshop with nationwide pickup. Call 1300 723 628 or use the Quick Quote.
Related: HP Desktop Repair · Desktop PC Repair · Data Recovery
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HP ProDesk 680 G4 Repair faults we repair every week
Power supply failure
Symptom: No power or amber blinking LED on front panel
How we fix it: Disconnect mains, remove side panel, unplug 24-pin and 4-pin connectors, test PSU output voltages with multimeter, then fit genuine 280 W or 300 W HP ProDesk 680 G4 replacement unit and re-test POST.
Repair or replace? repair
Swollen electrolytic capacitors
Symptom: Random shutdowns or failure to POST after 4–6 years
How we fix it: Visually inspect motherboard VRM and PSU capacitors for bulging tops, desolder and replace with 105 °C low-ESR equivalents of matching capacitance and voltage rating.
Repair or replace? repair
HDD mechanical failure
Symptom: Clicking or grinding noises and SMART errors on 3.5-inch SATA drive
How we fix it: Clone data to new 2.5-inch or M.2 SSD using SATA-to-USB bridge and cloning software, then fit new drive and restore Windows image.
Repair or replace? repair
CMOS battery failure
Symptom: Date/time reset and BIOS boot loop or lost settings
How we fix it: Open case, locate CR2032 cell on motherboard near PCIe slots, replace with fresh battery and re-enter BIOS settings or reload saved profile.
Repair or replace? repair
Overheating from dust-clogged heatsink
Symptom: Thermal throttling, high fan noise and intermittent shutdowns
How we fix it: Power off, remove side panel and CPU cooler, clean heatsink fins and fan blades with compressed air and isopropyl, re-paste with quality thermal compound and reassemble.
Repair or replace? repair
HP ProDesk 680 G4 Repair price guide
| Repair | Indicative price | Typical turnaround |
|---|---|---|
| Power supply replacement | $145-$195+ | Same or next business day |
| Motherboard capacitor refresh | $220-$290+ | 2-3 business days |
| HDD to SSD migration + data recovery | $195-$265+ | Same or next business day |
| CMOS battery replacement | from $65 | Same day |
| Full clean and thermal repaste | from $149 | Same day |
| RAM upgrade 16 GB DDR4-2666 | $95-$130+ | Same day |
| Windows 11 clean install + drivers | $120-$160+ | Same or next business day |
Prices are indicative only — every job is confirmed with a free, no-obligation quote after diagnosis. No Fix, No Fee.
HP ProDesk 680 G4 Repair — your questions answered
How much does it cost to repair an HP ProDesk 680 G4 that won’t turn on?
A no-power fault on the 680 G4 is usually the 280 W or 300 W internal PSU. We test voltages first; if the PSU has failed we fit a replacement for $145-$195 with same-day turnaround and 90-day warranty.
Can you recover data from a clicking hard drive in my HP ProDesk 680 G4?
Yes. We connect the drive externally, image any readable sectors to a new SSD, then install the SSD in the machine. Most jobs finish in one day and cost $195-$265 depending on how many sectors remain readable.
Is it worth upgrading an HP ProDesk 680 G4 to Windows 11?
The 680 G4 meets Windows 11 requirements with an 8th-gen Intel CPU and TPM 2.0. A clean install plus SSD and RAM upgrade typically costs $215-$290 and gives the machine another three to four years of reliable service.
Why does my HP ProDesk 680 G4 keep resetting the date and time?
The CR2032 CMOS battery on the motherboard is flat after five-plus years. Replacement takes five minutes, costs from $65 and restores correct BIOS settings without further issues.
How long will a repair on my HP ProDesk 680 G4 take?
Most common jobs such as PSU swaps, SSD migrations and thermal cleans are completed same or next business day. Complex motherboard work may take two to three days; we always confirm the exact timeframe after diagnostics.
