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dhuri911
By dhuri911
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I have a HP 406G1 microtower PC. With i5 4570 processor. I wish to upgrade it by installing graphics card GTX 1660. The pre-installed power supply in my system is hp300w supply and i have an old smps  Zebronics 450w D-sata power supply. So do i need to buy a new power supply or will my 450w will suffice if i use dual molex  to 8pin pci adapter with it?

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Please get a new power supply.. molex to pcie adapters never end well. even something like a corsair cx450m or evga 450w bronze will be better.

Main Rig: CPU: AMD Ryzen™ 9 3950X Processor (Stock, -0.1V offset)  /// Motherboard: Asus Pro WS X570-Ace /// CPU Cooler: Deepcool GamerStorm Castle 360 RGB V2 /// GPU: Gigabyte AORUS GeForce® RTX 2080 SUPER™ 8G /// RAM: G.SKILL Ripjaws V 128GB (4x32GB) 3200Mhz CL16 /// Chassis: Fractal Design Define R6 USB-C Blackout TG /// PSU: Corsair RM850i /// Storage: 500GB Samsung 970 EVO Plus NVMe (boot) + 1TB WD Black SN750 NVMe (Working Drive) + 2x 1TB Samsung 850 EVO 2.5" SATA SSD RAID0 (Game Library) + 2TB Seagate BarraCuda (Backup) /// OS: Windows 10 Pro

 

Peripherals (Main Rig): Mouse: Logitech MX Master 3 + Logitech G903 Lightspeed /// Keyboard: Keychron Q1 ANSI - JWK Lavender Linear Switches (TX Switch Film, Krytox 205g0), Durock V2 Stabilisers, Polycarbonate Plate, Tape Mod, GMK Blue Samurai + Keychron K4 V2 Hotswap RGB Aluminum Frame - Gateron Milky Black (Deskeys Switch Film, Krytox 205g0), Foam Mod, Tape Mod, GMK Rainy Day PBT Clones /// Tablet: Wacom Intuos M BT /// Monitor: 4x LG 27UL500-W (4K IPS Freesync) /// DAC: Focusrite Scarlett 2i2 /// Speakers: Logitech Z625 /// Mic: Focusrite CM25 MkII /// Headphones: Audio-Technica ATH-M50x, ATH-LS70iS IEMs /// Racing Wheel: Logitech G920 Driving Force with Shifter /// Eye Tracker: Steelseries Sentry  /// External Drives: 500GB Samsung T5 SSD (Working Drive)

 

Home Server - NASty: CPU: AMD Ryzen™ 7 2700x Processor /// Motherboard: Asus PRIME X470-Pro  /// CPU Cooler: be quiet! Dark Rock Pro 4 /// GPU: Gigabyte GeForce® GT 1030 OC 2G /// RAM: G.SKILL TridentZ RGB 64GB (4x16GB) 3200Mhz CL16 /// Chassis: Fractal Design Define R5 Window /// PSU: Corsair RM750x /// Storage: LSI SAS 9211-8i (IT Mode) + 10x 4TB Seagate Exos Enterprise Drive /// OS: UNRaid

 

Tester Rig: CPU: AMD Athlon™ 200GE Processor /// Motherboard: Asus ROG Crosshair VI Hero WIFI  /// CPU Cooler: AMD Wraith Prism RGB /// GPU: Palit GeForce® GTX 1050 2GB StromX /// RAM: Klevv Bolt 8GB (1x8GB) 3000Mhz CL15 /// Chassis: The AMAZING $30 "Computer Case"! /// PSU: Seasonic Focus GX-750 /// Storage: 1TB Samsung 860 EVO 2.5" SATA SSD + 240GB Transcend SSD220S 2.5" SATA SSD /// OS: Windows 10 Pro

 

Laptop (Asus UX430UN): CPU: Intel® Core™ i7-8550U Processor  /// GPU: NVIDIA GeForce MX150 /// RAM: 16GB 2133Mhz /// Storage: 512GB SanDisk SD8SN8U512G1002 (boot) /// OS: Windows 10 Home

 

Other Tech: Console: Xbox One S 1TB, Apple TV 4K /// Printer: Canon imageCLASS MF635Cx /// Phone: Apple iPhone 12 Pro Max 256GB Graphite (Daily Driver)  /// Tablet: Apple iPad 9.7-inch Wi-Fi (2018) 32GB + Apple Pencil (1st Generation) /// Headphones: Apple Airpods Pro, Sony WF-1000XM3, Sony WH-1000XM3 /// Smartwatch: Apple Watch Series 6 GPS Space Grey

 

Cameras: Bodies: Canon EOS-1D X Mark II, Canon EOS 5D Mark IV,  Sony A6000 /// Lenses: Canon EF 24-70mm F/2.8L USM, Canon EF 16-35mm F/2.8L II USM, Canon EF 70-200mm F/2.8L IS II USM, Tamron SP 150-600mm F/5-6.3 Di VC USD G2 (Canon), Sony SEL-P1650 E 16-50mm F3.5-5.6 PZ OSS /// Lighting: 2x Godox SL60-W Continuous LED, 2x Canon Speedlite 580EXII /// Tripods: Leofoto LS-324C Carbon Fiber Tripod + Leofoto LH-40 Ballhead, Leofoto MC-80 Multipurpose Clamp, Triopo DG-3 Gimbal Head /// Yes, I am a Canon Fanboy, deal with it

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11 minutes ago, dhuri911 said:

The pre-installed power supply in my system is hp300w supply and i have an old smps  Zebronics 450w D-sata power supply. So do i need to buy a new power supply or will my 450w will suffice if i use dual molex  to 8pin pci adapter with it? 

That Zebronics 450w D-SATA power supply is undoubtedly far worse than whatever HP 300w PSU you have.

According to the label it is only rated to deliver 15A on the 12V rail (180W). Throw it in the trash where it belongs.
image.png.680611abbd432d445ecdc7fd7091d231.png

 

Buy a new PSU. Even if you have to buy a cheaper graphics card like an RX 580 to afford to pay for the PSU.

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Arctic Freezer 34 eSports | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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I would also be careful when it comes to upgrading a prebuilt PC.

When I've attempted this in the past it sometimes has a habit of not accepting GPU's other than the one that comes with it.

Manufacturers can lock the motherboard, making it impossible to upgrade on your own.

They basically want to send the PC back to them so they upgrade it for you.

 

May or may not be the case for you, but I thought it was worth mentioning.

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10 hours ago, dhuri911 said:

I have a HP 406G1 microtower PC. With i5 4570 processor. I wish to upgrade it by installing graphics card GTX 1660. The pre-installed power supply in my system is hp300w supply and i have an old smps  Zebronics 450w D-sata power supply. So do i need to buy a new power supply or will my 450w will suffice if i use dual molex  to 8pin pci adapter with it?

As @Spotty said, the HP PSU is actually far, far, far better than the Zebronics.  Buy a quality PSU.

 

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Check it out!  Dispatching an HP 406 G1 at end of life includes pulling the bulk cap from the PSU!

http://h22235.www2.hp.com/hpinfo/globalcitizenship/environment/productdata/Countries/_MultiCountry/disassembly_deskto_2014821234543222.pdf

 

My guess is that's so they can sell it back onto the gray market!

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