CX430 powerful enough for 3570K and R9 270X?

Toggle sidebar Toggle sidebar
kassuba39

kassuba39

Honorable
Nov 27, 2012
434
0
10,810
I just upgraded my video card from a Sapphire HD 7850 2GB to a MSI R9 270X 2GB. My boot time after the switch is 5 minutes compared to the *roughly* 25 seconds it was before.

The CX430 only had 1 PCIe power connector so I had to use the molex to 6-pin connector to power it as well because the video card needs to be powered from two PCIe power plugs. (Excuse my limited knowledge regarding power supply connectors and names)

Is this problem due to my PSU bottlenecking my whole system? I sort of find it hard to believe that it's indeed the problem because the 7850 only has a 30% lower TDP than the 270X. From some other sleight research, many other people have been able to use my same(similar) configuration and this problem isn't enduring.

Thanks everyone, PC specs are below.

Edit: further clarification and grammar mistakes.
 
Solution
terry4536
Sort by date Sort by votes
jay2tall

jay2tall

Splendid
Apr 9, 2007
6,123
0
26,460
You should be fine with that PSU and GPU. It would also not attribute to a slow boot time. I don't know why you are getting a long boot time, but is this every time? Seems odd. I know sometime you will get a long boot after the first one or two time you install new hardware, but not every time after.
 
Upvote 0 Downvote
terry4536

terry4536

Glorious
Mar 28, 2010
9,743
6
46,265
The R9-270 has a minimum power supply requirement of 500 watts. So no, the power supply you suggested isn't adequate. I wouldn't recommend either the Corsair CX or RM series. They are both problematic. I would recommend a Seasonic or XFX power supply in the 550 to 650 watt range.
 
Upvote 0 Downvote
terry4536

terry4536

Glorious
Mar 28, 2010
9,743
6
46,265
Upvote 0 Downvote
Solution
kassuba39

kassuba39

Honorable
Nov 27, 2012
434
0
10,810


It has been every single time so far and I've tried about 6 times. Definitely an odd situation here. I figured it would be fine and in theory it should be fine. Like I stated above too, people with similarly spec'd systems aren't having the problem I am.
 
Upvote 0 Downvote
kassuba39

kassuba39

Honorable
Nov 27, 2012
434
0
10,810


I have the R9 270X? Not R9-290. And hell are you correct. I had two DEAD CX's sent to me in a row.
 
Upvote 0 Downvote
S

Suztera

Polypheme
Mar 18, 2014
12,730
0
60,960


+1
You can go for the 550W version of them. The CX 430 doesn't physically have the PCIE power cables to connect to most of the R9 270X.
 
Upvote 0 Downvote
mr91

mr91

Distinguished
Jan 25, 2013
3,000
3
21,165
The CX series has 28 amps on the single rail which means the actual wattage is 336.

"The cx 430 has the 28 amps"

The low end cx series power supplies are not designed for hard core gaming.

I suggest you get a RM 550 because it has Japanese capacitors, 45.8 Amp that = 549.6 watts and is very efficient with a gold certification.

This power supply also is back by a 5 year warranty.
 
Upvote 0 Downvote
kassuba39

kassuba39

Honorable
Nov 27, 2012
434
0
10,810


Thanks for bringing this to my attention. So I can now conclude that my extremely slow boot is because of my PSU bottleneck?
 
Upvote 0 Downvote
jay2tall

jay2tall

Splendid
Apr 9, 2007
6,123
0
26,460
The 270X doesn't use more than 300W in a fully loaded system. This review uses a Intel Core i7-4960X @ 4.2GHz and is well under 300W in Furmark or Crysis 3. The 500W total system wattage is very conservative. the CX430 should be just fine with that system. http://www.anandtech.com/show/7503/the-amd-radeon-r9-270x-270-review-feat-asus-his/16

If you put the 7850 back in or remove the 270x and use onboard graphics does the boot time issue go away? You can also try removing the AMD drivers entirely with the Display Driver Uninstaller (formally Driver Sweeper), and then download the latest AMD driver and install it to make sure nothing if messing with the drivers on boot. I'd recommend downloading the driver first then go through the process to wipe the existing drivers. http://www.guru3d.com/files_details/display_driver_uninstaller_download.html

If you haven't already updated your drivers from the AMD website you can always do that first before trying to wipe them. Make sure you go to the AMD site and not the card manufacture site.
 
Upvote 0 Downvote
mr91

mr91

Distinguished
Jan 25, 2013
3,000
3
21,165
This is a low end power supply & the Actual wattage is 336 watts even if the boot was normal I don't think this power supply is adequate for gaming on a midrange rig.

The op has two hard drives which also use power and possibly more components.

In theory this set up shouldn't use more than 300 watts but that doesn't mean the power supply is adequate for the set up.

 
Upvote 0 Downvote
terry4536

terry4536

Glorious
Mar 28, 2010
9,743
6
46,265
If the only the addition of the graphics card, resulted in the slow boot times then I would say that the power supply is a likely source of at least some of the problem. A moderately underpowered system can exhibit some strange results. Usually if it is too underpowered the system will freeze or crash.

What is the complete component list?
 
Upvote 0 Downvote
S

smeezekitty

Distinguished
Sep 11, 2012
6,960
0
18,460
I don't recommend that low end supply for a higher end components but that is nearly certainly not the cause of the boot time problem.
Bad power often causes crashes or random shutdowns or reboots but not low performance.

Since a 270X is a rebranded 7870 it isn't a huge upgrade. Try reinstalling the AMD drivers

What particular part of boot takes longest/

 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom