Can this power a RTX 4090 with the included cables?

450-500 Watts ballpark on 4090 of course the manufacturer of the card is a factor due to customized bios and power delivery but if you take in your entire PC , processor, accessories 750 could be pushing it close. Personally in my rigs I tend to lean at 200 watts above needed that way my power supply is not pinned at max. Recommend looking up a units "continuous power output" as units can sometimes display max "peak" wattage . Example 500 continuous 750 peak. Manufacturers differ on small details.

Can anyone please answer is the provided 12vhpwr cable compatible with rtx 4080 fe?

It is not, but you can buy corsair compatible cables if you want, pinouts are identical, I was using this with fasgear corsair cable.

Has anyone experienced the issue of the input capacitor overheating or melting?

Suggested contact manufacturer to inquire a defective unit or recall. As a user of the unit I have had no failures or faults in two builds. Caps popping in modern PSUs is usually due to more power being drawn from the unit then it can produce. (Highly unlikely I admit) the fuse should trip first.

Does this have 3 PCI-E power outputs & cables needed for the Asus Strix RTX 3090?

The unit I received didn't work, but it has 4 of said ports, so you should be fine if you want to get it. I think the one they shipped me was damaged in shipment, I ended up returning it and getting something else entirely, non PSU.

Lian Li Sp 850 80 Gold Black Color Performance Sfx

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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C$24718

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Description

⚡ Elevate your rig with power and precision — don’t get left in the dark!

COMPACT YET MIGHTY - SFX form factor fits sleek, space-conscious builds without sacrificing power.
COOL AND QUIET OPERATION - Adjusted start/stop temperature limit at 60°C keeps noise low and performance steady.
GOLD STANDARD EFFICIENCY - 80 PLUS Gold certification ensures up to 92.6% energy efficiency, saving power and reducing heat.
BUILT TO PROTECT AND PERFORM - Integrated inrush current limiter safeguards your components from power surges.
POWER YOUR BUILD WITH CONFIDENCE - 850W peak power to fuel high-performance setups without compromise.

The Lian Li SP 850 is a compact, full-modular SFX power supply delivering 850W of reliable power with 80 PLUS Gold efficiency. Designed with advanced protections like an inrush current limiter and optimized thermal controls, it ensures stable, quiet operation for high-performance PC builds. Its sleek black steel and brushed aluminum housing complements any modern setup, backed by a 5-year warranty for peace of mind.

Specifications

ASIN	B0BCV9JCCH
Best Sellers Rank	#14,453 in Computers ( See Top 100 in Computers ) #70 in Computer Power Supplies
Brand	Lian Li
Compatible Devices	Personal Computer
Connector Quantity	4
Connector Type Used on Cable	SFX
Cooling Method	Air
Country of Origin	China
Customer Reviews	4.1 4.1 out of 5 stars (56)
Fan Size	120 Millimeters
Form Factor	SFX
Item Dimensions	24.1 x 10.2 x 17.8 centimeters
Item Weight	1.82 Kilograms
Manufacturer	LIAN LI
Maximum Input Voltage	120 Volts
Mfr Part Number	SP850 BLACK
Minimum Input Voltage	100 Volts (AC)
Model Name	SP850 BLACK
Model Number	SP850 BLACK
Output Wattage	850
Power Supply Design	Full Modular
System Bus Connector Type	24/20 pin
Unit Count	1.0 Count
Upper Temperature Rating	60 Degrees Celsius
Wattage	850 watts

Reviews

R**D

Great product!

Amazing power supply.. been using it for about 2 years now. Haven't faced any problems

9.08.2025

R**A

Working Well 👌

18.08.2024

J**A

Great SFX power supply. Fan is quiet and doesn't make much noise. It only has a 300mm motherboard cable so it can be short in some cases.

20.10.2025

K**E

I used it for a few months. I think my PC was using too much power maybe in spikes because it kept tripping OCP. Tripped the protections several times and the unit never failed. Very nice quality

8.01.2026

N**K

Solid PSU and fits perfectly in my mini ITX build.

3.10.2025

J**Z

This is great for SFF, it's small, I have purchased about 5 of these already, all of them work great

21.08.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

C$24718

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In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Nicaragua.

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TrustScore 4.5 | 7,300+ reviews

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