Acquired Z400 & xw8400 - which 1 to upgrade + issues

[DGroves]

yep the cards are in order of fastest to slowest i agree with the order

for a video test try Unigine_Heaven-4.0-[Guru3D.com] (needs c++ 2010 32/64 bit installed)

PassMark is another popular name in PC and Graphics card benchmarking

https://graphicscardhub.com/graphics-card-benchmarking-softwares/

[Biomecanoid]

The main thing for me right now is to verify the shopping list. Am i OK with that ? 2 set of eyes are always better than one 🙂

[DGroves]

as i pointed out, your system your call, i personally disagree with your choices but my opinion is just that mine not yours ...in the end go with what makes you happy

[Biomecanoid]

OK why do you disagree ?

Change my shopping list according to what you think its best. 

That's why i am here to get opinions 😉

[DGroves]

i've already given you my opinion several times,.....good luck with your upgrades

[Biomecanoid]

Hello,

There is a video showing that you can install 8gb sticks for a total of 32gb ram on z400 v1 and 48gb on the v2

using MT18JSF1G72AZ-1G6E1ZF .

How accurate is this ?

 https://www.youtube.com/watch?v=c42J4aIawDE

Thanks

[Biomecanoid]

HMT41GU7AFR8A-PB seems to be compatible too :

https://www.ebay.co.uk/itm/ECC-unbuffered-Memory-hynix-8GB-1x8GB-PC3L-12800E-1-35v-UDIMM-HMT41GU7AFR...

[SDH]

I do trust those guys.... they have put a lot of work into their videos and have been following this forum closely.  So, I personally would buy based on their experience and accept a bit of risk which will always be the case if you go out of HP's recommendations.  You already are doing that by definition with these workstations.  They have a mistake in their "blog" page for the 8GB SKH memory.... it is 2Rx8 just like the Micron 8GB sticks.  Running L version memory will get you no benefit on the Z400.  They'll run at full voltage anyway.

The auto-downregulation of memory speed works well with proper sticks and workstation.  I've run six 8GB DDR3 PC3-14900R sticks from one of our Z620 v2 workstations as a test in a Z600 v2 just fine.  Passed all the memory tests.  Your Z400 v1 and the Z400 v2 will not run the "R" type memory.  Those need proper "E" type memory, the ECC unregistered (unbuffered) sticks.  So, since someone has done the testing for you I'd get 4 of the 8GB sticks they recommend, one or the other brand but don't mix.

I'm signing off of this thread now... good luck on your projects.

[Biomecanoid]

Hello,

Can you please tell me the difference between 398293-003 and 398293-002 CPU heatsinks ?

Can not find any info online. Do they have different cooling abilities for different TDP processors ?

Thank You

[SDH]

-002 is better than -003.  To save costs on these quite expensive heatsinks/fans late in the runs of the xw6400 and the xw8400 HP chose to use a unit with only 3 of the original 4 cooling tubes in place.  My guess is that these went into the workstations with low power processors, and the faster ones got the -002 version.  See pics below from my stash, both of the -003 version: