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Title: Different Performance with identical equip/software but different motherboards.. Post by: Scared on March 16, 2012, 04:46:13 AM Can anyone shed light onto why I get 38 mhash more per 7970 running on a Gigabyte MoBo (GA-990FXA-UD7) than I do on a MSI 890FXA-GD70.
Here's the Hardware - 4x Saphire 7970 - Mem 685 - Core 1200 AMD Sempron 145 2GB 240-Pin DDR3 SDRAM DDR3 1066 Barracuda SATA 60 Gig Drive and the Software (Not that this should have an impact) Windows 7 Diablo Miner MSI Afterburner I get 708 mhash per 7970 after 24 hours on the GA-990FXA-UD7 I get 670 mhash per 7970 after 24 hours on the MSI 890FXA-GD70 This accounts 154 mhash loss for the rig if I use the MSI 890FXA-GD70 Mobo. I'm building a new rig and plan on purchasing a less expense Mobo this time around. I heard the MSI mATX h61-p21 @ $58 bucks is a good 4x Mobo. That's $200 less than the Gigabyte but i'm afraid it'll have the same performance issue that I'm experiencing with the MSI 890FXA-GD70. I'd much rather spend the extra $200 and have 154 mhash better performance. The question is should I expect different Mobo's to have different performance? If so what Motherboards perform the best? Thanks for your help guys! Title: Re: Different Performance with identical equip/software but different motherboards.. Post by: WhitePhantom on March 16, 2012, 07:45:24 AM I wonder if it's caused by the same issue I had when I swapped 5970s in a computer and lost a good chunk of my hashing power. My last post in this thread points to the info that fixed my issue.
https://bitcointalk.org/index.php?topic=62925 (https://bitcointalk.org/index.php?topic=62925) Good luck! |