[SOLVED] 9 Year Old Corsair Professional HX750W - Should I Replace?

Feb 23, 2020
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Hi everyone,

I've got a question. I currently have a perfectly fine Corsair Professional HX750W that I bought back in 2011 for my work/gaming PC. It's going strong still, with no problems.

Now for the question, should I upgrade it? Or should I keep it going? I am looking to buy a 3080. Currently been using a GTX 680 that I bought back in 2011, and it's been a fantastic card, but I'm looking to play new games on Ultra.

Case:
Silverstone Fortress FT02S ATX Silver Aluminum Unibody Case 4X5.25 5X3.5INT
Cost: $219.99


Power Supply: 7 Year Warranty
Corsair Professional HX750W 750W ATX 12V 62A 24PIN ATX Modular Power Supply Active PFC 140MM Fan
Cost: $139.69


DVD Drive/Writer:
ASUS DRW-24B1ST 24X SATA DVD Writer OEM Black
Cost: $19.24


Memory (RAM):
G.SKILL Flare X Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) AMD X370 / B350 Memory (Desktop Memory) Model F4-3200C14D-16GFX
Cost: $169.99


CPU:
AMD RYZEN 7 3700X 8-Core 3.6 GHz (4.4 GHz Max Boost) Socket AM4 65W 100-100000071BOX Desktop Processor
Cost: $399.99


Motherboard:
ASUS AM4 TUF Gaming X570-Plus (Wi-Fi) ATX Motherboard with PCIe 4.0, Dual M.2, 12+2 with Dr. MOS Power Stage, HDMI, DP, SATA 6Gb/s, USB 3.2 Gen 2 and Aura Sync RGB Lighting
Cost: $249.00


Solid State Drive:
SAMSUNG 970 EVO PLUS M.2 2280 250GB PCIe Gen 3.0 x4, NVMe 1.3 V-NAND 3-bit MLC Internal Solid State Drive (SSD) MZ-V7S250B/AM
Cost: $89.99

XPG SX8200 Pro 1TB 3D NAND PCIe NVMe Gen3x4 M.2 2280 Internal Solid State Drive (ASX8200PNP-1TT-C)
Cost: $189.99


CPU Cooler / Heatsink:
Noctua NH-D15 SSO2 D-Type Premium CPU Cooler, NF-A15 x 2 PWM Fans
Cost: $107.99


GPU / Video Card:
MSI GeForce GTX 680 1006MHZ 2GB 6GHZ GDDR5 2xDVI DisplayPort HDMI PCI-E 3.0 Video Card
Cost: $499.99

Monitor:
BenQ FP241VW - LCD monitor - 24" Series
Cost: $750-ish

My monitor is 1920x1200/1080 (the 3080 will overkill it, but I'm looking to upgrade it in the future. It's going on 11 or 10 years old now, but still amazing)

So what does everything think? Also, if you could recommend me an amazing PSU that I can use for another 10+ years, that would be greatly appreciated. Preferably one I can buy at Canada Computers. Newegg is overpriced because of import/shipping fees, etc, and I don't trust Amazon for electronics.

Thanks!
 
Last edited:
Solution
Probably Corsair AX 850w. AX is their top tier but starts from 850. Next level down to 750w are HXi and RMx.

Here's a psu tier list

boju

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Probably Corsair AX 850w. AX is their top tier but starts from 850. Next level down to 750w are HXi and RMx.

Here's a psu tier list
 
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Vic 40

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Feb 23, 2020
9
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Thanks for the replies everyone, I appreciate it.

I was actually looking into the Corsair AX/HX 750w/850w but they seem to be out of stock everywhere.

I'll do some research into the Be Quite Straight Power 11's (since they are in stock at Canada Computers) as I don't know too much about that brand. They're reliable and well built?
 
Thanks for the replies everyone, I appreciate it.

I was actually looking into the Corsair AX/HX 750w/850w but they seem to be out of stock everywhere.

I'll do some research into the Be Quite Straight Power 11's (since they are in stock at Canada Computers) as I don't know too much about that brand. They're reliable and well built?

Yeah the Be Quiet! Straight Power 11 is a top tier PSU from Be Quiet!.
 

Juular

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Mar 14, 2020
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See alot of people make assumptions, but would really like to see real power usage from reviews. Not saying you're wrong, but it's abit soon do be so definitive.
First, i ain't talking about it's 750W rated power, it's just an old PSU, not so good by modern terms, barely mid-range.
Second, RTX3080 reviews with power draw figures are all over the place. Total rating of PSU you'll need depends on the CPU but generally treat RTX3080 as almost 400W GPU and calculate accordingly.
https://www.tomshardware.com/news/nvidia-geforce-rtx-3080-review
View: https://youtu.be/oTeXh9x0sUc?t=1381
 
Ok.... So here's my 2 cents on ANY 10 year+ old PSU, regardless of quality...

Capacitors, as they age, will decrease in capacitance while the ESR increases. This doesn't typically impact capacitors that are simply "meant to hold a charge" like the bulk caps, but the caps on the secondary side that filter ripple. As ESR increases, the ripple increases. That means that while the PSU is still outputting a proper DC voltage, the ripple is probably higher than it was 5 or 10 years ago. That ripple has to eventually be filtered downstream. But parts like motherboards, graphics cards, etc. don't have nearly as robust L&C filtering as the actual power supply. So then the parts downstream are stressed and can fail prematurely.