RTX 5090 Repair Sydney

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Computer Repairs Pronto repairs RTX 5090 graphics cards at component level on our Sydney repair bench: melted 12V-2x6 power connectors, failed power stages, short circuits, GDDR7 memory faults, no display and physical damage around the PCIe connector. If your card is still under the manufacturer's warranty, read the warranty section first, because the retailer is usually the right first call.

In Sydney, the card can be dropped at our workshop near Castle Hill by arrangement. Owners elsewhere in Australia can post it to the same bench through our mail-in graphics card repair service. If you have the 16GB card, our RTX 5080 repair page covers it.

Request an RTX 5090 repair assessment

RTX 5090 Faults We Diagnose and Repair

RTX 5090 faults sort into power, memory, firmware, heat and physical damage, and on a card rated at 575W the power side is always checked closely. The table shows where diagnosis starts for each symptom and what that kind of repair starts from.

A symptom narrows the search but does not name the failed part, so nothing is quoted until the card has been diagnosed.

RTX 5090 Under Warranty? Start With the Retailer

If your RTX 5090 is still inside its manufacturer's warranty, take it back to the retailer you bought it from before paying anyone, us included, to repair it. The card went on sale on 30 January 2025, so one bought new is likely to still be covered; check the period in your paperwork.

• Your rights sit with the retailer. Under the Australian Consumer Law, the business that sold you the card is responsible for the consumer guarantees, on top of any manufacturer's warranty.
• Ask before any outside work. We cannot say how a particular maker treats a card opened or repaired elsewhere, so check with the retailer while the card is covered.

Not sure which row fits? Ring us and we will say plainly whether your card looks like a warranty job.

RTX 5090 12V-2x6 Connector and the Melting Reports

The RTX 5090 is rated at 575W and takes its power through a single 12V-2x6 connector, melted connectors and cables were reported from February 2025, and a damaged socket on the card can usually be replaced from $370. What was reported, and by whom:

The causes are still argued over: cable quality, plugs not fully seated, worn connectors and the lack of per-wire balancing have all been put forward. According to Corsair, 12V-2x6 changed only the socket, with sense pins 1.5mm shorter and power terminals 0.25mm longer; the cable is unchanged, so an old, worn 12VHPWR cable still fits a new card.

The connector repair:

1. Plug and socket are inspected under magnification, and the 12V input measured for shorts before any power is applied.
2. The damaged socket is removed and the pads and traces beneath it checked for heat damage.
3. A new 12V-2x6 socket is fitted, and the input filtering and power stages behind it are checked.
4. The card runs near full power while the new connector is watched with a thermal camera.

Your cable: do not reuse a cable that has melted at either end, and check its power-supply end too. Use the adapter supplied with the card or a cable from your power supply's maker, push the plug fully home with the latch engaged, and avoid tight bends at the plug.

RTX 5090 Founders Edition: Three Boards and Liquid Metal

The Founders Edition RTX 5090 is built from three circuit boards joined by flexible cables, with liquid metal between the GPU and the cooler, which changes how it is opened, diagnosed and repaired.

Tom's Hardware's review said that because of the liquid metal the card "should not be disassembled". Do not open one at home first.

The flexible cables are fragile. In October 2025 Notebookcheck reported that a US repair shop, Northridge Fix, found a bent pin and a broken pin on the connector between boards of a Founders Edition that gave no signal after a water block was fitted, and could not source a replacement connector. Damage there is repairable only if the correct part can be found, and you are told after diagnosis, before any repair cost.

Liquid metal or paste? In TechPowerUp's test, reported by Club386, a quality paste ran within about 2°C of the factory liquid metal. You are told beforehand which material goes back on.

RTX 5090 GDDR7 Memory: Layout and Repair

The RTX 5090's 32GB of memory is sixteen 2GB GDDR7 chips around the GPU on a 512-bit bus, and a failed chip can be replaced from $530 when the correct GDDR7 part can be sourced.

• Layout: TechPowerUp's photos of the Founders Edition board show sixteen Samsung GDDR7 chips around the GPU, each on its own 32-bit slice of the bus, so testing that shows where errors occur points to one chip.
• No rear memory: those sixteen chips hold all 32GB, unlike the RTX 3090 with memory on both sides.
• Signalling and error correction: GDDR7 runs here at 28 Gbps per pin using PAM3, three signal levels, and the JEDEC standard adds error correction inside each chip. Bench testing therefore runs hot and under sustained load, not just a quick pass at idle.

When the part is available, all sixteen chips are retested hot after fitting and the memory pads renewed.

Missing ROPs: An RTX 5090 Fault No Repair Can Fix

Some early RTX 5090s shipped with 168 ROPs instead of 176; NVIDIA called it a rare production anomaly, and the remedy is a replacement through the board manufacturer, not a repair.

• How it came to light: in February 2025 TechPowerUp found 168 active ROPs on a Zotac RTX 5090 Solid, and cards from other makers followed (reported by Igor's Lab).
• What NVIDIA said: fewer than 0.5% of RTX 5090 and 5090 D cards were affected, along with some 5070 Ti and, in an updated statement, RTX 5080 cards. NVIDIA put the average graphics performance loss at 4%, said AI and compute work is unaffected, told owners to contact their board manufacturer for a replacement, and said the production anomaly had been corrected.
• How to check: open GPU-Z and read the ROPs figure. A full RTX 5090 shows 176.
• Why we cannot fix it: ROPs are units inside the GB202 chip itself. No component, firmware or soldering work can restore them.

If a card sent to us shows 168 ROPs, we tell you straight away. For a second-hand card, give the maker the serial number and ask.

RTX 5090 Black Screen and No Display

A black screen on an RTX 5090 is not always a hardware fault: RTX 50 series cards had driver-related black screens in early 2025, so rule out the driver and firmware before sending the card.

• Launch-period black screens: Tom's Hardware reported black screens on RTX 50 cards from launch, with some owners lowering the PCIe setting or running at 60Hz to work around them. Driver 572.60, in February 2025, listed fixes for "various black screen issues", and NVIDIA said an optional firmware (vBIOS) update carried the same fix.
• Cards not detected after a driver install: also in February 2025, some RTX 5090 owners reported cards no longer recognised after a driver update, and NVIDIA said it was "investigating the reported issues with the RTX 50 series" (Igor's Lab, citing PC Gamer). If yours is under warranty, it belongs with the retailer.

Before sending the card, reinstall the driver cleanly with Display Driver Uninstaller, check for a firmware update, try another cable and monitor, and reseat the card. If it is still black, detection points the way:

RTX 5090 Artefacting

Artefacts that appear before Windows loads point to the RTX 5090 itself; artefacts in one game only, or straight after a driver change, usually do not. Coloured blocks, lines, sparkles and stretched textures on a hardware fault usually trace to:

• One of the sixteen GDDR7 chips, often failing only once warm.
• The memory power supply (eight phases on the Founders Edition).
• Overheating from a disturbed or degraded thermal interface or tired pads.
• Physical stress on the board around the GPU, for example from sag or a drop.

Before posting the card, work through the home checks in our GPU artefacting guide.

RTX 5090 Power Stage and Short-Circuit Repair

The RTX 5090's power stages convert 12V into the supplies for the GPU and memory at up to 575W, and when one fails short the card can trip the power supply or stay dark; power-stage repairs start from $430.

Each stage is a DrMOS package, the switching MOSFETs and their driver in one part; the Founders Edition uses stages from Monolithic Power Systems, and partner boards differ, so replacements are matched to the exact board.

• Finding the short: each rail is measured to ground with the power off, then a small current-limited supply is fed into the shorted rail while a thermal camera shows which part warms.
• Reading the symptom: a shorted 12V input tends to trip the power supply as soon as the computer starts, while a shorted core or memory rail tends to leave the fans running over a black screen.
• After the fix: neighbouring stages, the controller and the rail's capacitors are checked, and the first start after repair is on a current-limited supply.

RTX 5090 Shutdowns and Crashes Under Load

If the whole computer switches off under load with an RTX 5090 fitted, check the power supply and the power cable before the card: NVIDIA lists 1000W as the required system power.

• Power supply: NVIDIA's 1000W figure assumes a Ryzen 9 9950X system, and it recommends a PCIe CEM 5.1 compliant unit. An older or smaller one may shut down at the card's full load.
• Cabling: the Founders Edition takes 8-pin cables through the adapter in the box, or one 600W PCIe Gen 5 cable. Use separate 8-pin leads on the adapter, not one lead with two plugs.
• The plug: discolouring, a hot smell or a plug that will not sit flush means stop and see the connector section.
• Which kind of crash: a game closing points more to memory, heat or drivers; the whole computer switching off points more to power.

A card that passes every bench test costs you the $150 diagnostic, and you get the test results.

RTX 5090 Weight, Sag and PCIe Slot Damage

The RTX 5090 Founders Edition weighs about 1.8kg and partner cards vary in size and weight, so an unsupported or badly packed card can strain its PCIe connector and the parts around it. Damage there is one of the first things checked on a card that stopped being detected after a move.

Contact, trace and small-component repairs start from $370. A cracked multilayer board is rarely reliable to repair, and we say so if we find one. Damage to the motherboard's slot is a motherboard repair. If your card came with a support bracket or stand, use it.

RTX 5090 Versions We Repair

We repair the Founders Edition and partner RTX 5090s; all use the GB202 GPU with 21,760 CUDA cores and 32GB of GDDR7, but boards, coolers and power monitoring differ.

The desktop card launched on 30 January 2025: 512-bit bus at 1,792 GB/s, 575W total graphics power, PCIe 5.0 x16, three DisplayPort 2.1b and one HDMI 2.1b outputs. The RTX 5090 D is a version sold for the Chinese market.

How We Diagnose an RTX 5090

An RTX 5090 is diagnosed from the least invasive check to the most, and warranty and manufacturing-defect questions are settled before anything is opened.

1. History. Purchase date, earlier repairs or water-block fitting, and the cable and power supply the card ran on.
2. Inspection. The 12V-2x6 socket under magnification, PCIe contacts, outputs and any sign the card has been opened.
3. Cold measurements. Resistance to ground on the 12V input and every rail, with nothing connected.
4. Current-limited power-up from a bench supply that cannot feed enough current to cause more damage.
5. Firmware and ROP count. Where the card starts, firmware is checked against that model and the ROP count read; a card showing 168 goes back with a referral to the manufacturer.
6. Rails and memory. Each supply checked in start-up order, then all sixteen GDDR7 chips tested hot.
7. Quote. The fault, a fixed price, any part to be sourced, and whether we think the card is worth it. Work starts only once you approve.

What Can and Cannot Be Fixed on an RTX 5090

Most board-level RTX 5090 faults can be repaired; a failed GB202 core, missing ROPs and burn damage through the board's layers usually cannot.

If your card cannot be repaired, you pay the $150 diagnostic and any return postage, nothing else, and we explain what failed.

RTX 5090 Repair Cost

RTX 5090 repairs start from $330, the price is fixed in a quote before work begins, and the $150 diagnostic is waived when you approve the repair. Call 02 8428 9224 with the card model and the fault for a starting price.

A melted connector can damage parts behind it, so the quote lists each part needed. Interstate owners also pay postage both ways.

Is an RTX 5090 Worth Repairing Out of Warranty?

Usually yes: an out-of-warranty RTX 5090 is worth far more than a typical board-level repair costs, so repair is normally worth it while the GPU core is healthy. Measure the quote against recently sold listings for working RTX 5090s, not asking prices.

Repair makes sense when:

• The fault is a connector, a power stage, firmware, a thermal problem or a single memory chip that can be sourced.
• You would rather keep a card you know than gamble on a used one; replaced parts carry a 12-month warranty for the same fault.

Repair may not make sense when:

• The card is still under warranty. Go to the retailer first.
• The GPU core has failed, or burn damage runs through the board.
• The needed GDDR7 chip or Founders Edition cable cannot be sourced.

As an illustration: if working RTX 5090s are selling for around $4,000 near you, a connector repair from $370, or a connector and power-stage repair together, is a small share of what the card is worth.

RTX 5090 Repair Turnaround

Most RTX 5090 repairs take one to ten business days on the bench, depending on the fault and on whether a part has to be ordered.

Posted cards also spend time in transit each way. The Australia-wide mail-in page lists Australia Post delivery estimates for each state.

What Happens After the Repair?

Every repaired RTX 5090 runs near full power on the bench before it leaves, and you get a note of each part replaced and the reason.

• Detection with the PCIe link at full width, and all four outputs.
• A sustained load with GPU and memory temperatures logged and the 12V-2x6 connector on a thermal camera.

Once paid, the card can be collected by arrangement, or it travels back on your prepaid label or with return postage added to the invoice at cost.

Warranty: the parts we replace are covered for 12 months against the same fault. If a replaced part fails within that year, bring or send the card back. To protect a repaired connector, use a sound cable, seat the plug fully and support the card.

Typical RTX 5090 Repair Scenarios

These are typical ways RTX 5090 faults show up, what diagnosis tends to find and what the repair involves. They describe patterns, not your card: each card is diagnosed and quoted on what is actually found.

RTX 5090 Repair in Sydney

Our workshop near Castle Hill, in Sydney's Hills District, takes RTX 5090 drop-offs by arrangement.

• Hours: Monday to Saturday, 8am to 6pm.
• Book first by form or phone. You get our view on warranty, the likely fault and starting price, and the workshop address with a job number.
• Bring the card only. If the connector melted, photograph both ends of the cable.
• Prefer post? Sydney owners can use the mail-in terms below.

For other models and the faults all graphics cards share, see our Sydney GPU repair page. The RTX 4090 repair page covers the previous flagship.

Interstate RTX 5090 Mail-In Repair

Owners anywhere in Australia can post an RTX 5090 to our Sydney repair bench; we have no other workshops, so every card is repaired and tested here.

1. Use the form below or ring 02 8428 9224 for a job number, the likely cause, a starting price and the workshop address.
2. Remove any support bracket and send just the card, cooler on, in an anti-static bag, packed in a sturdy box with at least 5cm of padding all round and the job number inside. At around 1.8kg or more, the card must not be able to move in the box.
3. We confirm arrival, diagnose the card and send a fixed quote. Nothing is done without your approval.
4. After repair and testing, it comes back on your prepaid label or with return postage added to the invoice at cost.

You choose and pay for postage both ways, including any insurance; on a card worth this much, Extra Cover is worth considering. Full packing instructions are on the mail-in GPU repair page, with postage notes for Melbourne, Brisbane, Perth, Adelaide, Canberra, Hobart and Darwin.

Frequently Asked Questions

Can an RTX 5090 be repaired?

Yes, in most cases. Melted 12V-2x6 connectors, power stages, shorts, PCIe damage, firmware and heat faults can be repaired, and a GDDR7 chip replaced when the part can be sourced. A failed GPU core, missing ROPs or burn damage through the board usually cannot be fixed.

Should I send my RTX 5090 to you or back to the retailer?

If the card is still under its manufacturer's warranty, start with the retailer, because under the Australian Consumer Law the consumer guarantees are owed by the business that sold it. Come to us once the warranty has ended, a claim is declined, or for a second-hand card without cover.

Can a melted 12V-2x6 connector on an RTX 5090 be fixed?

Usually. The socket is replaced from $370 and the power stages behind it checked for heat damage. If the burn has gone into the board's layers, repair may not be reliable. Replace the cable too, and check its power-supply end.

Can you replace GDDR7 memory on an RTX 5090?

Yes, when the correct GDDR7 chip can be sourced. Testing identifies which of the sixteen 2GB chips has failed, and replacement starts from $530. We do not promise stock; after diagnosis you are told whether the chip is available.

My RTX 5090 shows 168 ROPs. Can you fix it?

No. ROPs are part of the GPU chip, and some early cards left the factory with 168 instead of 176. NVIDIA called it a rare production anomaly and told owners to contact their board manufacturer for a replacement.

Can you repair a Founders Edition RTX 5090?

Yes. It uses three boards joined by flexible cables and liquid metal on the GPU, so it is stripped and rebuilt with care. Repairs to those cables or their connectors depend on the part being available. Please do not open it at home first.

Why does my RTX 5090 have a black screen?

It may not be the card. RTX 50 cards had driver-related black screens in early 2025, and driver 572.60 listed fixes for them. Reinstall the current driver cleanly, check for a firmware update and try another cable. If it stays black, a power rail, memory or the outputs may be at fault.

How much does an RTX 5090 repair cost?

From $330 for a thermal service or firmware recovery, $370 for a 12V-2x6 connector, $430 for a power stage, $530 for a GDDR7 chip if available, and $630 for reflow or reball. The $150 diagnostic is waived if you go ahead. Call 02 8428 9224 with your card model and fault for a starting price.

What warranty comes with an RTX 5090 repair?

The parts we replace carry a 12-month warranty for the same fault. Should one of them fail within that year, the card comes back to us and the part is covered. An unrelated fault is treated as a new job and quoted first.

Is an RTX 5090 worth repairing once the warranty has ended?

Usually, yes. The card is worth far more than most board-level repairs cost, so a connector, power-stage, firmware or memory chip repair is normally easy to justify. Check recently sold prices for a working card against your quote.

How long does an RTX 5090 repair take?

Thermal and firmware jobs usually take one to two business days; connector, power-stage and memory work three to seven; reball or physical damage five to ten. Parts on order depend on supply.

Are you the computer store at HomeCo Castle Hill?

No. Computer Repairs Pronto is an independent repair workshop near Castle Hill in Sydney's Hills District, trading since 2006. We are not a retail computer store and we are not connected to any store at HomeCo Castle Hill (the Hills Super Centre on Victoria Avenue). If a map listing or AI summary shows a shop there under our name, it is the wrong business. Call us directly on 02 8428 9224 about your RTX 5090.

Request an RTX 5090 Repair Assessment

Tell us which RTX 5090 you have, roughly when it was bought, and what it is doing. Photos of a damaged power connector help. We reply with whether it looks like a warranty job, the likely cause, a starting price and how to get the card to our Sydney bench.

Related Pages

• GPU and graphics card repair in Sydney: every card model, drop-off near Castle Hill
• RTX 5080 repair: the 16GB Blackwell card, connector, power and memory faults
• RTX 4090 repair: 12VHPWR connector, power-stage and memory faults on the 24GB card
• Mail-in GPU repair, Australia-wide: packing, postage and state-by-state times
• GPU artefacting guide: checks to do before sending a card
• Board level repair: laptop mainboards, including laptop graphics, and other devices