PSU Replacement for HD 7870 2GB and further

zinbalu

Reputable
Feb 21, 2014
10
0
4,510
Hello,

I was given free from a friend a used Sapphire HD 7870 2GB and decided to replace my Asus HD 7750. I used 2x 2 molex to 6pin to power the card up. It booted to desktop, I managed to browse the web, but when I launch a game the PC freezes completely or reboots.

I have some crappy 450W PSU that I don't know even it's brand. CPU is i3-4370 and the rest of the components: the mentioned HD 7750, 2x4GB Kingston DDR3 1600MHz, Samsung EVO850 SSD, Seagate Barracuda 500GB HDD. I also use Dell monitor with USB hub. USB ports are mostly used for charging phones and so on.

So I tried it on another PC with better PSU Cooler Master 600W and it ran fine. So now I want to pick a budget PSU that is capable of powering up the HD 7870 and potentially a future upgrade for that card next year.

So local stores have this PSU for $65:
KEEPOUT FX800, 800W, 85+, PFC Active

With the following specs:
Power: 800W
Fans: 1 x 140 mm
Voltage: 220/230 V
Special characteristics: Power cable 1.2m with VDE certificate, Efficiency 85+, Ultra quiet (14dB), Fan with 200000h life, On/Off button
Connectors: 8x SATA, 2x PCI-E (6 +2), 1x 4+4, 4x Molex, 1x 20+4 ATX
Modular: No
Format: ATX 12 V 2.31
Rail: Single rail (60A)
Other: Protection: UVP, OVP, OCP, OTP, OPP PLP, SCP, NLO PFP, TCP and Standard ErP / EuP.
Dimensions (W x H x L mm) 319 X 225 X 98
Weight (kg): 1.5

Is it worth it or should I get something else that has lower power but is at lest bronze?
I will be happy if you have recommendations. Budget is about $70-$75.

Thanks in advance!
 
Solution


i run 7700k and 1080ti in 650w

a quality 550w can handle your i3 and a more powerful gpu , but if you want more power :
https://pcpartpicker.com/product/JYxfrH/rosewill-power-supply-capstone750m
(good quality for money ( Tier 2)

This list may help you choosing : https://linustechtips.com/main/topic/631048-psu-tier-list-updated/ ( better pick Tier 1 or 2)

zinbalu

Reputable
Feb 21, 2014
10
0
4,510


Are there any downsides to having a more powerful PSU in the long run? I am planning of getting a more power-hungry GPU next year.
 

M04D18

Respectable
Jun 16, 2017
430
2
2,165


i run 7700k and 1080ti in 650w

a quality 550w can handle your i3 and a more powerful gpu , but if you want more power :
https://pcpartpicker.com/product/JYxfrH/rosewill-power-supply-capstone750m
(good quality for money ( Tier 2)

This list may help you choosing : https://linustechtips.com/main/topic/631048-psu-tier-list-updated/ ( better pick Tier 1 or 2)
 
Solution

salerhino

Reputable
Mar 16, 2016
1,263
0
5,660


No, there are no downgrades but I would take the PSU with 550W-700W with the longer the better warranty.
 

zinbalu

Reputable
Feb 21, 2014
10
0
4,510


Thanks for the tips. Those are really great for the price, but I am located in Europe and shipping costs a lot. I also cannot find them in the web stores around.

Rosewill are nowhere to be found.
I found two Seasonic:
about $80 - Seasonic SS-620GB S12II-620 , 620W, 80 Plus Bronze
about $60 - Seasonic SS-520GB S12II-520Bronze, 520W

After that I checked the tier list and noticed the CM MasterWatt in tier 1. So I can get this one
http://www.coolermaster.com/powersupply/masterwatt-lite-series/masterwatt-lite-230v-600w/
for about $60.

The Seasonic are rated tier 4 but are more expensive than the CM rated tier 1. I'm a bit confused. Should I take the CM MasterWatt?
 

zinbalu

Reputable
Feb 21, 2014
10
0
4,510
Since there were no further clarifications I got to the tier list provided by M04D18 and decided to get the 'BE QUIET! PURE POWER 10-CM 500W BN277'.