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I am a little confused regarding which mobo to buy. I have narrowed my list to these

Asus m5a97 evo r2.0

Asus m5a78l-m usb3

Asus m5a97 le r2.0

Asrock extreme 3

Also it would be nice if you could highlight the difference between the amd 970 and 990fx chipset. Thanks

Difference between 970fx and 990fx:

970

Codenamed RX980

One physical PCIe 2.0 ×16 slot, one PCIe 2.0 ×4 slot and three PCIe 2.0 ×1 slots, the chipset provides a total of 22 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge

HyperTransport 3.0 up to 2400 MHz and PCI Express 2.0

13.6 Watt TDP

Southbridge: SB950/SB920

990FX - Latest one.

Codenamed RD990

Four physical PCIe 2.0 ×16 slots @ x8 electrical which can be combined to create two PCIe 2.0 ×16 slots @ x16 electrical, one PCIe 2.0 ×4 slot and two PCIe 2.0 ×1 slots, the chipset provides a total of 38 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge

HyperTransport 3.0 up to 2600 MHz and PCI Express 2.0

AMD CrossFireX supporting up to four graphics cards

19.6 Watt TDP

Southbridge: SB950

Enthusiast discrete multi-graphics segment

So in short if you don't do SLI or CrossfireX then get 970fx because it saves money. Otherwise go with 990fx. Also 990fx has higher chance of supporting new cpus but the chance is nearly 0

I'm Linus too. (:

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I am a little confused regarding which mobo to buy. I have narrowed my list to these

Asus m5a97 evo r2.0

Asus m5a78l-m usb3

Asus m5a97 le r2.0

Asrock extreme 3

Also it would be nice if you could highlight the difference between the amd 970 and 990fx chipset. Thanks

Btw what cpu ur getting?

I'm Linus too. (:

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Difference between 970fx and 990fx:

970

Codenamed R9 280

One physical PCIe 2.0 ×16 slot, one PCIe 2.0 ×4 slot and three PCIe 2.0 ×1 slots, the chipset provides a total of 22 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge

HyperTransport 3.0 up to 2400 MHz and PCI Express 2.0

13.6 Watt TDP

Southbridge: SB950/SB920

990FX - Latest one.

Codenamed RD990

Four physical PCIe 2.0 ×16 slots @ x8 electrical which can be combined to create two PCIe 2.0 ×16 slots @ x16 electrical, one PCIe 2.0 ×4 slot and two PCIe 2.0 ×1 slots, the chipset provides a total of 38 PCIe 2.0 lanes and 4 PCIe 2.0 for A-Link Express III solely in the Northbridge

HyperTransport 3.0 up to 2600 MHz and PCI Express 2.0

AMD CrossFireX supporting up to four graphics cards

19.6 Watt TDP

Southbridge: SB950

Enthusiast discrete multi-graphics segment

So in short if you don't do SLI or CrossfireX then get 970fx because it saves money. Otherwise go with 990fx. Also 990fx has higher chance of supporting new cpus but the chance is nearly 0

by the way I am getting a used asrock 990fx extreme 3 for 50 dollars.. So should I go for it or another used asus sabertooth 990fx mobo for 85 dollars. And the asus sabertooth doesn't have any accessories, not even the i/o shield.. Which one would u recommend
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by the way I am getting a used asrock 990fx extreme 3 for 50 dollars.. So should I go for it or another used asus sabertooth 990fx mobo for 85 dollars. And the asus sabertooth doesn't have any accessories, not even the i/o shield.. Which one would u recommend

Extreme 3 should be fine if you dont do too big overclocks.

I'm Linus too. (:

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what would be a "safe" overclock according to this board?

There is no such thing as a " safe " overclock, only a stable overclock, as overclocking is not safe for the cpu as it can decrease its lifespan, especially if the cpu is not well cooled. I don't know if the board can affect overclocking results or not but the overclock you get depends if you get a " lucky " cpu chip, as cpus aren't created equally due to something that happens to the silicone wafer when the cpu is being made.

i5 4690k | MSI GTX 970 Gaming 4G | Swiftech H240-X | MSI Z97s SLI Krait Edition | Corsair Vengeance Pro 8gb ( 2x4gb ) | Corsair RM750 | Samsung 850EVO 250gb SSD & WD Caviar Blue 1tb HDD | Fractal Design Define R5

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There is no such thing as a " safe " overclock, only a stable overclock, as overclocking is not safe for the cpu as it can decrease its lifespan, especially if the cpu is not well cooled. I don't know if the board can affect overclocking results or not but the overclock you get depends if you get a " lucky " cpu chip, as cpus aren't created equally due to something that happens to the silicone wafer when the cpu is being made.

I was a little concerned because this board has 4+1 phase power delivery... Is that bad for a decent overclock like around 4.5 ghz
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I was a little concerned because this board has 4+1 phase power delivery... Is that bad for a decent overclock like around 4.5 ghz

I don't think it will. The overclock is mostly affected my the chip. If you have a bad chip, you will need to pump more voltage into it to get the same overclock or may not be able to get that overclock you wanted at all.

i5 4690k | MSI GTX 970 Gaming 4G | Swiftech H240-X | MSI Z97s SLI Krait Edition | Corsair Vengeance Pro 8gb ( 2x4gb ) | Corsair RM750 | Samsung 850EVO 250gb SSD & WD Caviar Blue 1tb HDD | Fractal Design Define R5

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There is no such thing as a " safe " overclock, only a stable overclock, as overclocking is not safe for the cpu as it can decrease its lifespan, especially if the cpu is not well cooled. I don't know if the board can affect overclocking results or not but the overclock you get depends if you get a " lucky " cpu chip, as cpus aren't created equally due to something that happens to the silicone wafer when the cpu is being made.

according to me the difference in chips is because of the fact that since it us made of silicon which has low conductivity, it is doped with impurities to increase the conductivity which cannot be exactly the same fir each chip... That's why some chips are a little bit more conducting and thus can overclock better...
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