Thinkpads Forum

So does the t61 6457 have 2 mpci or 2mpcie? and are there any mpcie ssds?

Two mPCIe. Not sure about using mPCIe SSDs in this model - never tried and don't remember reading anything about it working / not working.

Another thing If i get an ssd is TRIM supported on the t61?

Yes. TRIM depends on the operating system, not the platform. Windows 7 and later editions support TRIM, as do all recent Linux flavors.

greenroost14 wrote:So does the t61 6457 have 2 mpci or 2mpcie? and are there any mpcie ssds?

More hints.
If i right. 6454 is a 15.4" T61 - so it have 3 miniPCIe slots. 2 full sized (for WLAN + WWAN) + 1 for half sized cards (WUSB or TurboMemory).
But no one of them can handle mSATA SSD

TRIM is more dependant on SSD itself. Native support from the OS is good thing, but i am using Intel SSD Tool box and it trims my Intel SSD on XP;)
And if OP want to use SSD it is highly recommend to flash Middleton's BIOS to T61. Lenovo locked SATA speed to 1.5Gb/s on T61 series thinkpads, but hardware can get full SATA II speed 3Gb\s with that non official but proven BIOS.

FryPpy wrote:TRIM is more dependant on SSD itself. Native support from the OS is good thing, but i am using Intel SSD Tool box and it trims my Intel SSD on XP;)

How does that work? Does it install a driver that somehow sits between the OS and the SSD and intercepts/issues ATA commands, or does it do a sweep&clean every once in a while?

dr_st wrote:How does that work? Does it install a driver that somehow sits between the OS and the SSD and intercepts/issues ATA commands, or does it do a sweep&clean every once in a while?

Other software can be used for TRIMming on old OS is Samsung Magician (for new samsung SSDs) or O&O Defrag.
Yes all that software use task sheduling for run TRIMming periodically. I don't know what do Intel and Samsung. But O&O Defrag use simple algorithm (as can be seen from user interface). It scan logical drive (file structure | MFT) for unused blocks (clusters | sectors) and issue TRIM for them.

Another notice for using SSD on old OSes. Partition alignment. For optimisation purposes partitions must be aligned on SSDs block boundary. For example XP installer makes 1st partition from first free sector which is not on boundary. So i use (any) linux liveCD and fdisk utility to make partitions. I lay 1st partition from the begining of 2nd cylinder. Unused space in 1st cylinder will be OwerProvisioning-like.