Z420 RAM upgrade compatibility and performance concerns

[Anu0512]

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@schillacif wrote:

well... I'll try to change them...

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Buy the same exact moudle which jleonard711 bought or buy this 

http://www.crucial.com/usa/en/compatible-upgrade-for/HP-Compaq/hp-z420-workstation

[schillacif]

I'll do it,  thank you!

[frighten98]

Im going to buy a r420 motherboard, i find this on ebay for 160€, and I buyed 16 gb of RDIMM RAM (2x 8gb) for 40€.

The processor will be an E5-2665, are they going to be compatible ?

In this page I seen the processor listed.

The Ram are Samsung M393B1K70CH0-YH9.

[Anu0512]

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@frighten98 wrote:

Im going to buy a r420 motherboard, i find this on ebay for 160€, and I buyed 16 gb of RDIMM RAM (2x 8gb) for 40€.

The processor will be an E5-2665, are they going to be compatible ?

In this page I seen the processor listed.

The Ram are Samsung M393B1K70CH0-YH9.

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• Yes, motherboard looks fine. But why you buying HP motherboard, honestly they are pieces of garbage. There will be plenty of restriction believe me you will regret it if you want upgrade anything. From cabinet to power supply there is too much restriction from HP. Please go for Asus or any other manufacture even you can get 1 yr warranty.

• See if you find 1600 Mhz RAM.

• Well according to the HP link its showing compatibility but see the link which I provide you it does not mention the CPU. And whenever V1,V2 or V3 is mention with CPU it’s not same CPU, its shows the generation gap. So never think same model with different version V1 and V2 are going to compatible with motherboard.   
  

http://h20195.www2.hp.com/v2/GetPDF.aspx/4AA4-0128ENUC.pdf

The reason I’m telling you not go with HP motherboard are : If Intel CPU will supporting your chipset but HP motherboard restricted that CPU for computability to work in their Motherbaord. If you go different motherboard then you don’t have to pay hefty amount for HP component.

I will just give one example. If you buying HP Motherboard and you don’t know the block date then you don’t know the CPU support. They are created their own mess.

     If the boot block date is 12/28/2011, the Z420 supports only the E5-16xx v1 processors.

     If the boot block date is 03/06/2013, the Z420 supports both the E5 v1 and v2 processors. 

These boot block dates apply to the Z420, Z620, and Z820.

HP does not support, nor provides tools, to update the BIOS boot block.  There are many threads discussing this.

I also own two HP z420 and other machines. And I had done the upgrade for PSU & GPU. And I faced too much problem. That’s reason I’m telling you.  

[frighten98]

I've seen this PDF showing the 2665 as compatible.

The reason that I buyed this mobo is because going to asus side, it's too expensive, this HP mobo only costed me 130€, and if it does't work, I can just return or resell it, I hope it works, the motherboard model is 

708615-001 / 708615-601, can I know the bootblock by the model number ?

i've seen this AMAZON link from HP, it's model 708615-001 and the release date is October 21, 2013, maybe it will work.

For the PSU part, I buyed this adaptor

[Anu0512]

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@frighten98 wrote:

I've seen this PDF showing the 2665 as compatible.

The reason that I buyed this mobo is because going to asus side, it's too expensive, this HP mobo only costed me 130€, and if it does't work, I can just return or resell it, I hope it works, the motherboard model is 

708615-001 / 708615-601, can I know the bootblock by the model number ?

i've seen this AMAZON link from HP, it's model 708615-001 and the release date is October 21, 2013, maybe it will work.

For the PSU part, I buyed this adaptor

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My friend where its mention this particular CPU in list ?

Intel® Xeon® Processor E5-1680 v2 3.0 25 MB 1866 MT/s 8 Y Y 4, 9
Intel Xeon Processor E5-2650 v2 2.6 20 MB 1866 MT/s 8 Y Y 4, 8
Intel Xeon Processor E5-1660 v2 3.7 15 MB 1866 MT/s 6 Y Y 2, 3
Intel Xeon Processor E5-1650 v2 3.5 12 MB 1866 MT/s 6 Y Y 1, 4
Intel Xeon Processor E5-1620 v2 3.7 10 MB 1866 MT/s 4 Y Y 0, 2
Intel Xeon Processor E5-1607 v2 3.0 10 MB 1600 MT/s 4 N Y N/A
Intel Xeon Processor E5-1620 3.6 10 MB 1600 MT/s 4 Y Y 2,3
Intel Xeon Processor E5-1603 2.8 10 MB 1066 MT/s 4 N Y N/A


You can only confirm by checking in BIOS.

[frighten98]

Sorry wrong PDF ,

This is the correct one.

[Anu0512]

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@frighten98 wrote:

Sorry wrong PDF ,

This is the correct one.

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In this PDF if you see Note just below to the CPU list. 

NOTE: Although the Intel Xeon E5-2600 processor family supports dual processors, the HP Z420 Workstation does not support dual processor configurations

[frighten98]

That only means that you can't install two CPU on a Z420.

Also means that the 2665 support 2 CPU, not that you can't install it on a single socket motherboard like the one on the Z420.

[Anu0512]

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@frighten98 wrote:

That only means that you can't install two CPU on a Z420.

Also means that the 2665 support 2 CPU, not that you can't install it on a single socket motherboard like the one on the Z420.

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Well when I seen the sheet its also mentioned the PSU is 600 watt But UAE with z420 only 400 watt PSU come, may be vary country to country.   I'm bit confuse, but if HP document saying that motherboard will support then you can buy it but still the block date will be problem, just go to the this thread. 

http://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/Processor-Options-f...