(MX500) SSD sustained write half speed on this mobo?

[MalfurionStormrage]

I have an MX500 plugged in a P8H61-M and my sus. write is 200MB/s while the benchmarks I've seen run it at ~500? why? It's plugged in SATA3G

[TheSLSAMG]

4 minutes ago, MalfurionStormrage said:

I have an MX500 plugged in a P8H61-M and my sus. write is 200MB/s while the benchmarks I've seen run it at ~500? why? It's plugged in SATA3G

SATA II is 3Gb/s and as such, it will bottleneck faster drives such as your MX500. Your motherboard only has SATA II.

[.Apex.]

7 minutes ago, MalfurionStormrage said:

I have an MX500 plugged in a P8H61-M and my sus. write is 200MB/s while the benchmarks I've seen run it at ~500? why? It's plugged in SATA3G

SATA3G is up to 300mb/s

SATA6G is up to 600mb/s

 

300mb is the theoretical speed, it doesn't mean that your SSD should hit that, but 200mb/s sounds very reasonable to me.

[MalfurionStormrage]

10 minutes ago, TheSLSAMG said:

SATA II is 3Gb/s and as such, it will bottleneck faster drives such as your MX500. Your motherboard only has SATA II.

 

Well it says SATA3 so I'm not sure.

I had my drives in IDE now they're AHCI, does that help?

[MalfurionStormrage]

Think i've found the issue - my cables seem to be sata 2

[Sakkura]

8 minutes ago, MalfurionStormrage said:

 

Well it says SATA3 so I'm not sure.

I had my drives in IDE now they're AHCI, does that help?

No, it says SATA 3Gbps. That is the same as SATA2.

 

SATA3 is SATA 6Gbps.

2 minutes ago, MalfurionStormrage said:

Think i've found the issue - my cables seem to be sata 2

There is no such thing as a SATA2 cable. A SATA cable can do any of the SATA speeds, including 6Gbps.

[Gikero]

Spec page for your motherboard shows it is a SATA gen 2 capable chipset.

You can't get full speed of your SSD without a SATA gen 3 controller card. Other option is to switch out your motherboard with one that will support

SATA 6Gb/s.

https://www.asus.com/Motherboards/P8H61M/specifications/

SATA cables will operate at the speed of the controller. PC Gamer explicitly tested this years back.

https://www.pcgamer.com/is-your-sata-cable-slowing-down-your-data-transfers-max-pc-investigates/

 

 

8 hours ago, MalfurionStormrage said:

 

Well it says SATA3 so I'm not sure.

I had my drives in IDE now they're AHCI, does that help?

AHCI is better due to it's ability to queue the drive for requests. IDE mode can't do this.

[dgsddfgdfhgs]

1 hour ago, Gikero said:

You can't get full speed of your SSD without a SATA gen 3 controller card.

Can you explain a bit more? I have a similar board H61m-k and might be buying the mx500 too.

what is SATA gen 3 controller card? built in ssd or on mobo?

[Gikero]

27 minutes ago, dgsddfgdfhgs said:

Can you explain a bit more? I have a similar board H61m-k and might be buying the mx500 too.

what is SATA gen 3 controller card? built in ssd or on mobo?

A controller card is an expansion card ( PCI-Express ) that has it's own dedicated SATA controller. You can get cards that offer 6Gb/s. This would allow the MX500 to operate at it's full speed. On your motherboard's SATA controller, the SSD would operate at half of it's capable speed. Still much faster than a traditional hard drive, but not as fast as the card can go.

[dgsddfgdfhgs]

9 hours ago, syn2112 said:

300mb is the theoretical speed, it doesn't mean that your SSD should hit that, but 200mb/s sounds very reasonable to me.

I see SSD interface s sata3 6gb, and mobo sata is only sata3 , 3gb, so half speed makes scence

1 minute ago, Gikero said:

A controller card is an expansion card ( PCI-Express ) that has it's own dedicated SATA controller. You can get cards that offer 6Gb/s. This would allow the MX500 to operate at it's full speed

Do you think a PCIe 2.0 adaptor will let it run full speed ?