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caspercba
Ctrl-Alt-Del
Posts: 9
Registered: ‎10-22-2014
Location: FR
Views: 727
Message 1 of 4

p50: Added new ram, might not be running in DUAL CHANNEL

HI all,

 

I recenlty bought a Thinkpad P50 with Xeon Processor with  1x16gb of ram installed under the keyboard (the seller reported 2x8gb installed!! ). I bought 2x8gb ram sticks so i could get the dual channel working perfectly. 

 

Now because of this mistake from the seller i ended up with:

slot1: empty

slot2: 8gb

slot3: 16gb

slot4: 8gb

 

I suspect that with this configuration, dual channel will be disabled. So this is what i would need:

1. Am i right to think that im not actually running on dual channel?

 

2. Recommended action: get one more stick of 16gb for example and end up with 48gb (2x16 + 2x8) or remove the 16gb and get 2x8gb ?

 

rvcjew
802.11n
Posts: 309
Registered: ‎08-27-2013
Location: US
Views: 667
Message 2 of 4

Re: p50: Added new ram, might not be running in DUAL CHANNEL


@caspercba wrote:

HI all,

 

I recenlty bought a Thinkpad P50 with Xeon Processor with  1x16gb of ram installed under the keyboard (the seller reported 2x8gb installed!! ). I bought 2x8gb ram sticks so i could get the dual channel working perfectly. 

 

Now because of this mistake from the seller i ended up with:

slot1: empty

slot2: 8gb

slot3: 16gb

slot4: 8gb

 

I suspect that with this configuration, dual channel will be disabled. So this is what i would need:

1. Am i right to think that im not actually running on dual channel?

 

2. Recommended action: get one more stick of 16gb for example and end up with 48gb (2x16 + 2x8) or remove the 16gb and get 2x8gb ?


Probably not, but check in CPU-Z for it to say Dual and if the timings on the sticks even match each other.

 

Malcolm

 

ram specs.PNG

I own a Y510p SLI (retired), Yoga 2 Pro, P50 4K, X1C5
caspercba
Ctrl-Alt-Del
Posts: 9
Registered: ‎10-22-2014
Location: FR
Views: 658
Message 3 of 4

Re: p50: Added new ram, might not be running in DUAL CHANNEL

Do you see anything suspicious in this report? 

 

Capture1.PNGslot1Capture2.PNGslot2Capture3.PNGslot3Capture4.PNGslot4CaptureMemory.PNGMemory summary

rvcjew
802.11n
Posts: 309
Registered: ‎08-27-2013
Location: US
Views: 643
Message 4 of 4

Re: p50: Added new ram, might not be running in DUAL CHANNEL

It is fine, the speed is slowed down to the timings of the 16GB stick so they match. I personally would have put the two 8GB's in the slots below the keyboard (1,3) and the 16GB in the first slot (2) by the HDD but it does not seem like the BIOS cares. Enjoy your 32GB.

Malcolm
I own a Y510p SLI (retired), Yoga 2 Pro, P50 4K, X1C5

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