Associate
- Joined
- 4 Apr 2011
- Posts
- 7
Hi,
I recently purchased a Z68-UD3 mobo and an i5 2500k processor to replace the stock cpu and mobo that came with my computer from Dell 3 years ago. The stock CPU was an AMD Athlon X3 435 and I don't think the mobo had a brand name.
I also purchased the Gelid Tranq. v2 fan to help cool down my new CPU.
After installing everything, I now find that my graphics card is really temperamental in performance. I have the same graphics card that I used with my old mobo and cpu without any problems. Now I'm wondering if the temperamental performance could be down to the fact my mobo and cpu has changed, thus power supply requirements have changed?
Could a dodgy power supply result in decreased GPU performance?
To give you an idea of the fluctuations, 3DMark can give me a score of roughly P2500 at times. However, on some occasions, it can go as low as P900. I've looked at the itemised scoring and the only thing that is fluctiating score wise is the GPU performance. The CPU seems fine. If my GPU score is low, I normally reset the comp and then it seemsto fix the problem (until I restart the comp another day and the same thing happens).
The PSU that I purchased is unbranded and really cheap (<£20). It's apparently a 500w PSU although I understand it might not be entirely trustworthy.
Can someone confirm that it is likely to be a PSU lacking in power which could be causing the dip in performance? If so, can someone recommend a decent PSU from Overclockers that should solve this problem?
My full specs are below:-
Board: Gigabyte Technology Co., Ltd. Z68XP-UD3
4080 Megabytes Usable Installed Memory
3.30 gigahertz Intel Core i5-2500K
NVIDIA GeForce GTX 550 Ti [Display adapter]
500 WATT ATX POWER SUPPLY QUIET 20-24 PIN with SATA
Also, I should point out that I have the latest Nvidia drivers directly from Nvidia website.
Thanks in advance for your response!
P.S Not sure if this matters but when I was installing the new mobo, I realised the PSU didn't have the 8 pin 12 volt connector to connect to the mobo. The PSU came with a 4 pin 12 volt connector although this only seemed to power the computer for a few seconds. I purchased a 4 pin to 8 pin converter which seems to have fixed this problem (i.e the computer hasn't turned off). Just wondering if this converter could be a factor.
I recently purchased a Z68-UD3 mobo and an i5 2500k processor to replace the stock cpu and mobo that came with my computer from Dell 3 years ago. The stock CPU was an AMD Athlon X3 435 and I don't think the mobo had a brand name.
I also purchased the Gelid Tranq. v2 fan to help cool down my new CPU.
After installing everything, I now find that my graphics card is really temperamental in performance. I have the same graphics card that I used with my old mobo and cpu without any problems. Now I'm wondering if the temperamental performance could be down to the fact my mobo and cpu has changed, thus power supply requirements have changed?
Could a dodgy power supply result in decreased GPU performance?
To give you an idea of the fluctuations, 3DMark can give me a score of roughly P2500 at times. However, on some occasions, it can go as low as P900. I've looked at the itemised scoring and the only thing that is fluctiating score wise is the GPU performance. The CPU seems fine. If my GPU score is low, I normally reset the comp and then it seemsto fix the problem (until I restart the comp another day and the same thing happens).
The PSU that I purchased is unbranded and really cheap (<£20). It's apparently a 500w PSU although I understand it might not be entirely trustworthy.
Can someone confirm that it is likely to be a PSU lacking in power which could be causing the dip in performance? If so, can someone recommend a decent PSU from Overclockers that should solve this problem?
My full specs are below:-
Board: Gigabyte Technology Co., Ltd. Z68XP-UD3
4080 Megabytes Usable Installed Memory
3.30 gigahertz Intel Core i5-2500K
NVIDIA GeForce GTX 550 Ti [Display adapter]
500 WATT ATX POWER SUPPLY QUIET 20-24 PIN with SATA
Also, I should point out that I have the latest Nvidia drivers directly from Nvidia website.
Thanks in advance for your response!
P.S Not sure if this matters but when I was installing the new mobo, I realised the PSU didn't have the 8 pin 12 volt connector to connect to the mobo. The PSU came with a 4 pin 12 volt connector although this only seemed to power the computer for a few seconds. I purchased a 4 pin to 8 pin converter which seems to have fixed this problem (i.e the computer hasn't turned off). Just wondering if this converter could be a factor.
