New W520 BIOS 1.37 has been posted: [ Edited ]

[huberth]

New W520 BIOS 1.37 has been posted:
http://download.lenovo.com/ibmdl/pub...s/8buj15us.exe
http://download.lenovo.com/ibmdl/pub...s/8buj15us.txt

[Problem fixes]
- Fixed an issue where incorrect battery capacity might be shown in some battery
benchmark programs.
- Fixed an issue where the computer failed to resume normal operation from
hibernation state after running Setup Defaults by the F9 key in the ThinkPad
Setup menu.
- Fixed an issue where the Power-On NumLock function in ThinkPad Setup did not
work.

-----------------------------------------------------------------------------

Although there is no mention of it above, BIOS 1.37 fixed the "50 second cold-boot start-up delay" issue with my Intel 510 SSD.

Hurrah!!!! and thank you Lenovo! (especially "someotherguy")

________________________________________________

.

PS: However, my Kingston HyperX 1600 Mhz RAM now runs at 1333 Mhz  (664.6Mhz x 2 - per HWiNFO64)

[w520user999]

Thanks for the heads-up on the Kingston modules. 

Did the BIOS change the clock or the multiplier? (mine is 100 MHz x 8)

 Can you downgrade BIOS?   

[huberth]

Here are the details from HWiNFO64:

---------------------------------------------------------

Current Performance Settings
Maximum Supported Memory Clock: 800.0 MHz
Current Memory Clock: 664.6 MHz
Current Timing (tCAS-tRCD-tRP-tRAS): 8.0-8-8-23
Memory Runs At: Dual-Channel

Command Rate: 2T
Read to Read Delay (tRD_RD) Different Rank: 1T
Read to Read Delay (tRD_RD) Different DIMM: 3T
Write to Write Delay (tWR_WR) Different Rank: 3T
Write to Write Delay (tWR_WR) Different DIMM: 3T
Read to Write Delay (tRD_WR) Same Rank: 3T
Read to Write Delay (tRD_WR) Different Rank: 3T
Read to Write Delay (tRD_WR) Different DIMM: 3T
Write to Read Delay (tWR_RD) Same Rank (tWTR): 5T
Write to Read Delay (tWR_RD) Different Rank: 1T
Write to Read Delay (tWR_RD) Different DIMM: 1T
Read to Precharge Delay (tRTP): 5T
Write to Precharge Delay (tWTP/tWR): 10T
RAS# to RAS# Delay (tRRD): 4T
Refresh Cycle Time (tRFC): 107T
Four Activate Window (tFAW): 20T

----------------------------------------------------------------------------------

Where do I find the multiplier?

I am not going to downgrade the BIOS, since the "50 second SSD start-up-delay" fix is more important to me.

[w520user999]

[huberth]

I have 664.6 Mhz = 6.67 x 99.7 Mhz

[w520user999]

Its no longer using the XMP profile.

Glad to hear the start up delay is fixed.

I'm reluctant to upgrade BIOS to test it, as I am not sure if a downgrade is even possible.

Again, thanks for the heads-up on this.

Lenovo are you aware of this problem??

[DEJAD]

downgrade possible 

[someotherguy]

You can definitely downgrade BIOS.

I don't know the reason for the change to limit memory frequency to 1333MHz, but I know it was done on purpose.  I am trying to find out the reason for it.

[ThorsHammer]

---

someotherguy wrote:

You can definitely downgrade BIOS.

I don't know the reason for the change to limit memory frequency to 1333MHz, but I know it was done on purpose.  I am trying to find out the reason for it.

---

Then why isn't it in the RELEASE notes?

#FAIL

[harrisb]

Perhaps the memory clock limit was to address a possible cause of the SSS issue. I've been running 1.37 with Crucial 4x8 gb SODIMMs w/o any issue. They are capable of running at 761MHz but are being clocked at 664.6 Mhz. Not a big deal for me.

---

huberth wrote:

New W520 BIOS 1.37 has been posted:
http://download.lenovo.com/ibmdl/pub...s/8buj15us.exe
http://download.lenovo.com/ibmdl/pub...s/8buj15us.txt

[Problem fixes]
- Fixed an issue where incorrect battery capacity might be shown in some battery
benchmark programs.
- Fixed an issue where the computer failed to resume normal operation from
hibernation state after running Setup Defaults by the F9 key in the ThinkPad
Setup menu.
- Fixed an issue where the Power-On NumLock function in ThinkPad Setup did not
work.

-----------------------------------------------------------------------------

Although there is no mention of it above, BIOS 1.37 fixed the "50 second cold-boot start-up delay" issue with my Intel 510 SSD.

Hurrah!!!! and thank you Lenovo! (especially "someotherguy")

________________________________________________

.

PS: However, my Kingston HyperX 1600 Mhz RAM now runs at 1333 Mhz  (664.6Mhz x 2 - per HWiNFO64)

---