RTX 5090 Gains Two 8-Pin Inputs In Soldered Load Sharing Mod

By Indie Kings | October 4, 2026

Updated October 4, 2026: An RTX 5090 owner added two 8-pin PCIe inputs alongside the original connector and reported around 3A per conductor with wire temperatures below 40C during a 550W full load test for 48 hours. The original connector stays in use, so VideoCardz notes the problem is reduced not removed.

VideoCardz by WhyCry reported the mod on Oct 3, 2026 at 11:40 GMT. The report describes work attributed to Redditor DallasGrave on Reddit. The angle is load sharing, not connector replacement.

The report states that an RTX 5090 owner added two conventional 8-pin PCIe power inputs operating alongside the original connector. The original cable remains connected and active. The GPU receives power from the original cable and two additional PCIe cables at the same time.

The pictured card in this article is an unmodified NVIDIA reference RTX 5090, not the soldered mod unit. No photos of the mod are republished here. The image is for reference only.

Image: NVIDIA GeForce RTX 5090. Credit: NVIDIA.

Two Cables Beside One

VideoCardz reports that the mod keeps the original 12VHPWR header in service. Two extra 8-pin PCIe inputs are added beside it. All three connections are used together.

The report describes a small pickup PCB soldered to the contacts of the original 12VHPWR header. Wires run from this board to another PCB carrying two 8-pin PCIe connectors. The extra board connects directly to the GPU side of the original header.

The creator says this distributes load across six additional conductors. That characterization comes from the creator via VideoCardz. It is a creator report, not an independent test result.

The GPU receives power from the original cable and two additional PCIe cables at the same time. That simultaneous feed is central to the claim. It is not a swap from one connector type to another.

VideoCardz presents the layout as an addition, not a removal. The original path remains part of the circuit. That fact shapes the rest of the assessment.

The report does not confirm the exact card model beyond RTX 5090. No brand is named for the modded card in the extract. This article does not assign a brand to that card.

PNY appears in the story only for a separate version in progress. The modded card itself is described only as an RTX 5090. That distinction matters for accuracy.

VideoCardz notes the cheapest PCPartPicker listed RTX 5090 is the card in question. The outlet reads that as a comment on pricing. This article attributes that reading to VideoCardz and restates no price.

The pickup method is specific in the report. A small PCB solders to the header contacts. That board then feeds a second PCB with the two 8-pin inputs.

The report states that the extra board connects directly to the GPU side of the original header. That placement is part of the creator account. It is reported as described, not verified independently here.

Reddit is the underlying venue for the creator posts. DallasGrave is named as the Redditor behind the work. Those posts are summarized through VideoCardz.

NVIDIA is the maker of the GeForce RTX 5090 platform referenced here. The reference image shows an unmodified NVIDIA card. It does not show the soldered unit.

The following table summarizes the mod as reported. Every detail is attributed to the creator account via VideoCardz unless listed as a plain fact. No step, diagram, or parts list is included.

The table reflects only what VideoCardz conveyed from the creator. It does not add test conditions beyond those stated. Ambient conditions, fan speeds, and before mod temperatures were not stated.

The mod adds copper paths in parallel with the original feed. That is the plain description of the layout. The effect on safety over time is not established in the extract.

Each conductor carries less current when more conductors share the load. That is the creator logic as reported. The reported figure is around 3A per conductor.

The report ties the wiring to the GPU side of the header. That detail is repeated because placement matters to the claim. It remains a creator report.

PCPartPicker is mentioned only for the pricing observation attributed to VideoCardz. No model recommendation follows from that mention. No store link is included.

This section establishes layout only. Measurements are addressed next. Limits are addressed after that.

3A and 40C

VideoCardz conveys creator measurements of around 3A per conductor. That figure is presented as a creator measurement. It is not presented as lab verification.

The modified card ran at 550W under full load for 48 hours. That duration and load are creator reported. They describe one reported run, not a long term study.

Wire temperatures stayed below 40C including at the joint. That result is also creator reported. It covers wires and the joint area as described.

The three figures belong together. Around 3A per conductor, 550W full load, 48 hours, and below 40C wires form one claim set. Each part has the same standing as creator reported.

VideoCardz does not supply before mod temperatures in the extract. No baseline is available for comparison here. This article makes no comparison to an unmodified state.

Ambient conditions were not stated. Fan speeds were not stated. Case airflow was not stated. Those gaps limit what can be inferred.

The 550W figure describes load during the reported test. It does not describe every game or workload. It describes the full load condition cited by the creator.

The 48 hour figure describes duration of that reported run. It does not describe months of use. Long term results were not stated.

The below 40C figure describes wire temperatures including at the joint. It does not describe GPU core, memory, or hotspot readings. Those values were not stated.

Around 3A per conductor describes current after the mod in the creator account. It does not include a before value. No reduction amount can be calculated from the extract.

The creator says load spreads across six additional conductors. That statement explains the claimed mechanism. It remains a creator statement via VideoCardz.

All three connections are used together during operation. The original cable is not idle. The two extra cables are not standby spares.

VideoCardz frames these numbers as reported, not confirmed. That framing is preserved here. Every sentence on numbers points back to the creator.

The outlet title speaks of reducing 12VHPWR load. That wording signals less stress, not zero stress. The original connector remains energized.

Reddit hosts the underlying creator account. VideoCardz summarizes that account for a wider audience. This article summarizes VideoCardz.

NVIDIA cards in the 5090 class draw high power under load. That context explains interest in current sharing. It does not prove safety or reliability.

No independent meter data is quoted in the extract. No thermal camera data is quoted. No third party repeat is cited.

The numbers are quotable only with attribution. Around 3A per conductor is a creator measurement. Below 40C including at the joint is a creator report.

550W for 48 hours is a creator report of one test. It is not a warranty of future behavior. It is not a guide to repeat the test.

This article gives no steps to reproduce the wiring. It gives no diagrams. It gives no parts list. Measurement methods are not detailed in the extract.

Readers should treat the figures as one modder claim. That claim now carries the outlet brakes discussed below. The brakes matter more than the numbers.

Reversible Claimed Not Endorsed

The creator calls the mod reversible. That word is the creator characterization. This article does not endorse that description.

The basis given is that the extra PCB solders onto the existing board without changes to the GPU PCB itself. That detail comes from the creator via VideoCardz. It is reported as claimed.

Soldering still occurs on a live power path. A joint on header contacts is still soldering. Reversible in this context does not mean risk free.

This involves soldering on a live power path of a high wattage GPU. That fact stands apart from any reversibility claim. Heat, bridges, and lifted pads can destroy a card.

The article states plainly that this requires soldering. It voids warranty. It risks destroying the card. No encouragement is implied.

VideoCardz does not present reversibility as a safety finding. The outlet presents it as the creator view. That boundary is kept here.

A version for PNY 5090 cards is also being worked on. That status comes from the creator statement. It signals intent, not availability.

PNY is named only for that in progress version. The finished mod unit is not identified as PNY. The exact brand of the modded card is not confirmed.

Do not read in progress as tested. Do not read in progress as supported by the board maker. It is a creator statement about ongoing work.

The reversibility claim does not change warranty status. Soldering wires to the original connector voids the warranty. That consequence applies even if removal were possible.

The reversibility claim does not change the electrical reality. The original connector stays in circuit while in use. Load is shared, not rerouted away.

DallasGrave is the name attached to the claim. Reddit is the venue for the underlying posts. VideoCardz is the outlet summarizing those posts.

This section reports a characterization, not a finding. Claimed reversibility is not the same as safe removal. It is not the same as factory condition.

Any desoldering would still involve heat near power contacts. That work carries its own risk. The extract gives no removal procedure.

This article gives no steps, no diagrams, and no parts list. It does not explain how to solder or desolder the board. It does not link any guide.

The prudent reading is narrow. One builder describes an add on board as reversible because the GPU PCB itself was not cut. That description is untested here.

The Connector Stays

VideoCardz notes the mod does not completely remove the original problem. The reason is direct. The 12VHPWR connector remains in use.

All three connections are used together. The extra board connects directly to the GPU side of the original header. The original path still carries current.

Problem reduced is not problem removed. That is the first brake from VideoCardz. It applies even if the per conductor figure is taken at face value.

VideoCardz notes cases involving even RTX 5080 cards are on record. That observation widens the context beyond one flagship. It is attributed to VideoCardz.

The 5080 point matters because lower tier cards can also appear in failure reports. The outlet cites those cases as on record. This article does not detail those cases.

A shared load still depends on contact quality at every plug. A worn or poorly seated plug remains a risk point. The extract does not claim otherwise.

Adding conductors does not change the header design. It does not change mating cycles. It does not change insertion depth requirements.

The mod adds parallel paths on the GPU side. The wall side, cable side, and mating interface still matter. Those elements stay in the system.

VideoCardz keeps the original connector at the center of the story. The headline speaks of reducing load, not eliminating risk. That wording is deliberate.

The second table below restates what the mod does not do. It pairs each limit with its source. Unstated items are marked as not stated.

The table is intentionally short. It prevents overreading. Each row blocks one common assumption.

The original connector row blocks the idea of a bypass. This is an assist, not a replacement. VideoCardz states that plainly.

The 5080 row blocks the idea that only one model is affected. VideoCardz places 5080 cases on record. No further detail is given in the extract.

The before mod row blocks thermal comparisons. No prior wire temperature is cited. No improvement delta can be stated.

The long term row blocks durability claims. A 48 hour run is not a lifespan test. Seasonal heat, dust, and movement are not addressed.

The brand row blocks model assumptions. The modded card is an RTX 5090 of unconfirmed make. PNY refers only to a separate version in progress.

NVIDIA designs the connector system used across these cards. Reddit hosts user discussion of field issues. PCPartPicker lists market options noted by VideoCardz.

The outlet pricing note does not affect the engineering brake. The cheapest PCPartPicker listed RTX 5090 is identified as the card in question. VideoCardz reads that as a comment on pricing.

This article restates no price. It attributes the pricing reading to VideoCardz. Market pricing is not the focus.

The takeaway is stable. Load sharing may lower stress per wire in one reported test. It does not take the original connector out of service.

The Warranty Is Gone

Soldering wires to the original connector voids the warranty. That is stated as a plain warranty fact. It is not presented as legal advice.

The mod requires soldering. A small pickup PCB is soldered to the 12VHPWR header contacts. That step triggers the warranty consequence.

This involves soldering on a live power path of a high wattage GPU. Mistakes can lift pads, bridge contacts, or overheat nearby parts. The card can be destroyed in seconds.

This article gives no steps. It gives no diagrams. It gives no parts list. It does not identify solder type, iron temperature, wire gauge, or pinout.

Do not use this article to plan a replica. The information here is insufficient by design. Safety demands that gap.

No guide is linked. No thread is linked. No video is linked. No store is linked. No product is linked.

The warranty fact applies even if the board were later removed. Factory terms do not reset after desoldering. Physical alteration leaves traces.

The warranty fact applies regardless of test results. Below 40C wires do not preserve coverage. Around 3A per conductor does not preserve coverage.

The warranty fact applies to the modded card, not to the reference image. The NVIDIA reference card shown here is unmodified. Its status is unrelated.

High wattage power work adds fire and burn hazards. A 550W load is not bench toy power. Poor joints can heat under load.

The extract reports below 40C at the joint for one run. That single result does not make the process safe to copy. Conditions, skill, and materials vary.

Reddit discussion cannot authorize warranty exceptions. DallasGrave cannot restore coverage through a reversibility claim. Only the board maker controls warranty terms.

PNY has no stated role in approving the in progress version. In progress means work continues. It does not mean endorsed.

PCPartPicker has no role in warranty here. Its mention concerns a pricing observation by VideoCardz. It confers no protection.

NVIDIA warranty terms are not quoted here. The general principle is stated only. Soldering to the connector voids coverage.

Readers seeking more power headroom should use factory supported options. Readers should keep connectors clean, fully seated, and undamaged. Those are general cautions, not mod instructions.

The safety block is complete. Soldering is required. Warranty is void. Destruction is possible. No instructions follow.

What Is Not Established

The source does not state the card brand. The modded unit is an RTX 5090 of unconfirmed make. Do not name a brand for that card.

The source does not state temperatures before the mod. No baseline wire reading is cited. No delta can be reported.

The source does not state ambient conditions. Room temperature is unknown. Case model and airflow are unknown.

The source does not state fan speeds. Fan curves are unknown. Noise normalized behavior is unknown.

The source does not state long term results. One 48 hour run is reported. Months of thermal cycling are not covered.

Anything else beyond the fact block is omitted or marked [NEEDS VERIFICATION]. That rule guards against drift. It keeps claims tied to VideoCardz.

The per conductor figure is around 3A as a creator measurement. Meter type is not stated. Probe placement is not stated. Calibration is not stated.

The wire temperature figure is below 40C including at the joint. Sensor type is not stated. Measurement distance is not stated. Images of method are not republished.

The 550W load is described as full load. Application name is not stated. Voltage behavior is not stated. Power excursion behavior is not stated.

The six additional conductors are described as sharing load. Balance across those conductors is not detailed. Connector by connector readings are not stated.

The pickup PCB is described as small and soldered to header contacts. Board thickness is not stated. Copper weight is not stated. Joint inspection results are not stated.

The second PCB carries two 8-pin PCIe connectors. Maker is not stated. Ratings are not stated. Cable makes and lengths are not stated.

The PNY version is described as in progress. Completion date is not stated. Compatibility list is not stated. Test plan is not stated.

VideoCardz notes 5080 cases on record. Case counts are not stated. Causes are not stated. Remedies are not stated.

VideoCardz notes the cheapest PCPartPicker listed RTX 5090 is the card in question. Price is not restated here. Seller and stock status are not stated.

Reddit is the venue, DallasGrave is the creator name, NVIDIA makes the reference platform, and PNY is tied only to future work. Those names appear without links. No endorsement is implied.

The absence of data is itself the finding. What is missing prevents broad conclusions. One reported build cannot carry fleet wide claims.

Future testing could fill gaps with meter logs and thermal logs. That testing is not in the extract. This article does not substitute for it.

FAQ

What did the RTX 5090 owner add?
A. Two conventional 8-pin PCIe power inputs operating alongside the original connector, as reported by VideoCardz.

How is the extra power board attached?
A. A small pickup PCB is soldered to the contacts of the original 12VHPWR header, with wires to a second PCB carrying the two 8-pin connectors.

What numbers did the creator report?
A. Around 3A per conductor, 550W under full load for 48 hours, with wire temperatures below 40C including at the joint, all as creator reported via VideoCardz.

Is the mod reversible?
A. The creator calls it reversible because no changes to the GPU PCB itself were made, reported here as the creator characterization without endorsement.

Does this remove the original connector problem?
A. No, VideoCardz notes the 12VHPWR connector remains in use so the problem is reduced not removed, with RTX 5080 cases also on record.

Does soldering void the warranty?
A. Yes, soldering wires to the original connector voids the warranty, stated as a plain warranty fact, and this article gives no steps, diagrams, or parts list.

Bottom Line

One RTX 5090 owner added two 8-pin PCIe inputs beside the original feed and reported calmer per wire current and cool wires in one 48 hour run. That claim is narrow and attributed. It deserves the brakes attached to it.

The brakes are clear. The original connector stays in use. VideoCardz says the problem is reduced not removed. Cases involving even RTX 5080 cards are on record.

The warranty cost is clear. Soldering voids coverage. The process needs soldering skill on a high wattage power path and can destroy the card. No instructions are given here.

The gaps are clear. Brand is unconfirmed, baselines are missing, ambient and fan data are missing, and long term results are missing. Those limits block wider conclusions.

Sources: VideoCardz by WhyCry, RTX 5090 mod adds two 8-pin power connectors to reduce 12VHPWR load, https://videocardz.com/newz/rtx-5090-mod-adds-two-8-pin-power-connectors-to-reduce-12vhpwr-load. Underlying creator DallasGrave via Reddit. Reference image shows NVIDIA hardware. PNY is named only for an in progress version.