Dell OptiPlex 7090 Repair & Upgrades — Australia-Wide
Last Updated:
Still running a Dell OptiPlex 7090? The Original PC Doctor keeps it going — we repair the Dell OptiPlex 7090 for power, boot, storage and overheating faults, and upgrade it with an SSD, more RAM and a clean Windows install for years more life. No fix, no fee, Australia-wide.
Fast, honest Dell OptiPlex 7090 repair & upgrades — no fix, no fee.
✔ No fix, no fee · ✔ 90-day warranty · ✔ Onsite, remote & workshop · ✔ Since 2001
Common Dell OptiPlex 7090 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 Dell OptiPlex 7090
We repair and upgrade every Dell OptiPlex 7090 — 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 Dell OptiPlex 7090 repaired or upgraded — talk to a technician now.
✔ No fix, no fee · ✔ 90-day warranty · ✔ Onsite, remote & workshop · ✔ Since 2001
Dell OptiPlex 7090 Repair FAQs
How much does a Dell OptiPlex 7090 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 Dell OptiPlex 7090?
Yes — we recover documents, photos and files from a Dell OptiPlex 7090 even if it won’t boot, and can move them to a new SSD or PC.
Why won’t my Dell OptiPlex 7090 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 Dell OptiPlex 7090?
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 Dell OptiPlex 7090 out of warranty?
Absolutely — out-of-warranty and end-of-life machines are our specialty; we’re independent.
Where can you repair my Dell OptiPlex 7090?
Australia-wide — onsite, remote, and workshop with nationwide pickup. Call 1300 723 628 or use the Quick Quote.
Related: Dell Desktop Repair · Desktop PC Repair · Data Recovery
Free Resources
Independent, non-commercial references:
Dell OptiPlex 7090 Repair faults we repair every week
Failing 250 W or 360 W internal PSU
Symptom: Amber or blinking power LED, no POST, immediate shutdown on load
How we fix it: Replace the proprietary Dell PSU with a matching 80 Plus rated unit after confirming 12 V rail stability under load.
Repair or replace? repair
Swollen Nichicon or Rubycon capacitors on motherboard
Symptom: Random restarts, failure to POST after warm soak, distorted audio
How we fix it: Remove and replace the bulging electrolytic capacitors on the VRM and standby rails with low-ESR equivalents.
Repair or replace? repair
2.5 inch SATA HDD failure
Symptom: Clicking or grinding noise, SMART errors, Windows boot failure
How we fix it: Clone the drive to a new SATA SSD using sector-by-sector imaging then reinstall Windows 10/11 with Dell drivers.
Repair or replace? repair
Overheating due to dust-clogged heatsink and fan
Symptom: Thermal throttling, loud fan ramp, shutdown after 10-15 minutes of use
How we fix it: Disassemble the chassis, clean the copper heatsink and 92 mm fan, re-paste with high-grade thermal compound.
Repair or replace? repair
Failed CMOS battery causing BIOS corruption
Symptom: Date resets, boot loop into BIOS, lost RAID or boot order settings
How we fix it: Replace the CR2032 cell and reload the latest Dell BIOS via USB bootable utility.
Repair or replace? repair
Degraded DDR4 SODIMM modules
Symptom: BSOD with memory management errors, reduced capacity shown in BIOS
How we fix it: Test modules individually, replace with matched 2666 MHz or 3200 MHz DDR4 SODIMMs.
Repair or replace? repair
Dell OptiPlex 7090 Repair price guide
| Repair | Indicative price | Typical turnaround |
|---|---|---|
| PSU replacement (250 W or 360 W) | $180-$260+ | Same or next business day |
| Motherboard capacitor replacement | $240-$340+ | 2-3 business days |
| SSD upgrade with data clone | from $165 | Same or next business day |
| Full thermal clean and repaste | from $149 | Same day |
| CMOS battery and BIOS reload | from $65 | Same day |
| DDR4 RAM upgrade (16 GB kit) | $95-$145+ | Same day |
| Windows 11 clean install and driver set | from $125 | 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.
Dell OptiPlex 7090 Repair — your questions answered
How much does it cost to replace the power supply in a Dell OptiPlex 7090?
A 250 W or 360 W Dell-specific unit typically costs $180-$260 including labour and testing. We bench-test the rails before fitting and provide a 90-day warranty on the new PSU.
Can you upgrade my OptiPlex 7090 to Windows 11?
Yes, we perform a clean Windows 11 install after confirming TPM 2.0 and Secure Boot are enabled in the Dell BIOS. A new SSD and 16 GB RAM kit are often added at the same time to maintain performance.
My OptiPlex 7090 clicks when I turn it on—what is wrong?
The clicking usually indicates a failing 2.5 inch SATA hard drive. We image the drive to a new SSD, recover your files where possible, and fit the SSD so the machine boots normally again.
Does the Dell OptiPlex 7090 support more than 16 GB of RAM?
The 7090 Micro and SFF models accept up to 64 GB using two DDR4 SODIMMs. We test existing modules first and supply matched 3200 MHz kits if an upgrade is needed.
How long does a full service and SSD upgrade take on an OptiPlex 7090?
Most jobs are completed the same day or within 24 hours. We clone your existing drive, clean the cooling system, update the BIOS and return the machine with a 90-day warranty.
