Will it workLenovo r400 replacing hdd with evo 850

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So I was wondering is there any issue why lenovo r400 would not work with samsung evo 250 gb? Or this upgrade is just fine?

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u should be good, just try to make sure you run it in ACHI mode in the bios instead of IDE mode

Also, you will be limited to about 270mb/s read and write on the SATA2 3Gbps port on your r400. (not a big deal, still a worthy upgrade)

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ty for fast reply btw those modes should be in which bios section if you happen to know?

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let me check, i have a x200s and i think lenovo bios stayed the same for that period

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do you have the blue thinkvantage button? lol

get into your Bios Config Utility
click config
Switch from compatilibilty to ACHI

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tyvm for help I try this out

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Since you're limited to SATA 2 why don't go for a cheaper and slower drive but with a bigger capacity since you'll max out anyway the SATA 2 BUS?

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don't think any platter drives max out the sata 2 bus, the fastest ones reach 140mb/s so theres still a performance jump going to ssd on the sata2 bus. Plus the laptop hard drives on average i've tested reach a measly 90mb/s

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I was still talking about SSDs, sorry if I impled that.

You're also talking about 7200 RPM laptop drives? The 5400 RPM SATA 2 drive that was in my laptop has the same speeds so I guess a 7200 can be faster, am I wrong?

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Therma throtling of ssd controller will reduce some speed so he having faster disk is a good option.

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You would be better of with a BX100 SSD, you'll get more capacity for the money and still not come close to seeing it's full potential on SATA II

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oh okay, most ssds should saturate the 270mb/s dunno which ones don't anymore.

yea almost every 2.5" drive has hovered around 90mb/s I think the 7200 hit 110mb/s. but these were all very old drives from '07 '08
The 140mb/s figure came out of some research i did a while back on 3.5" enterprise drives and they hit 160mb/s (at least to my recollection)

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I've never heard about an SSD controller thermal throttling. No even moving the entire capacity of a dirve back and forth.

@thefish322 Oh, okay nice to know. I've been too unprecise: when I talk about "slower drive" I mean not a top of the line SSD like Samsung's one but something around the 470Mb/s write and 520Mb/s read as @buckwhal said.

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Under normal usage there shouldnt been any problems, depending on cooling in his laptop, Samsung has thermal guard feature beacause tlc gets less stable with temperature.But i agree that its overkill on sata 2 connection, dont get any "cheap tlc drives" ( hehe they are too expensive for what they offer) like bx200. MLC rules hehe

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yea totalty missed that, but a lower capacity and priced ssd makes more sense,