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HP Recommended
Microsoft Windows 10 (32-bit)

I want to upgrade my HP z240 processor from xeon e3-1230v5 (80W) to i7-7700k (91w)
Will the processor temperature rise?
Is the fan enough to cool the processor i7-7700K?

10 REPLIES 10
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My friends, I need help, please

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The HP workstations that run hotter processors often use a "Performance" heatsink/fan rather than the lower rated "Mainstream" heatsink/fan. If you learn how to use the HP PartSurfer and look up the Z240 Tower you'll find it has two heatsinks/fans listed, and the "80W" one (and above) is the Performance one you need (and you might also want to consider getting the higher rated power supply). The Performance heatsink/fan usually is larger overall, can have a different plug end wiring, and has a larger (92x25mm) rather than smaller (80mm) fan. As such they actually may run quieter and at lower RPMs and still provide more cooling:

From HP PartSurfer for Z240 Tower.jpg

 

The lower rated heatsink/fan is much more common. Finding the higher rated one can take some work. However, if the processor you have currently is the original note it is rated for 80W and thus should already be a Performance heatsink/fan. Note that there are Assembly P/N and Spares P/N. What you see with the PartSurfer is only the Spares P/N, but what you see on the label on the heatsink is usually only the Assembly P/N.

 

Also find the latest Z220 QuickSpecs you can. Here is from one. Note you need to use only non-ECC memory with that processor and it is to be run only in the Tower (CMT) form factor. Not the SFF...   If you end up needing to buy non-ECC memory make sure you get the 2400 or above rated type or using slower memory will slow your new processor too.

 

From HP Z240 QuickSpecs.jpg

 

Now, having done this work for you I'd like you to do something for others in the future. Please open your case and find the Assembly Part Number from the heatsink/fan you have in there. Let us know. That way others in the future will have an easier time locating a "Performance" (80W and above) heatsink/fan from eBay for this particular workstation. Maybe even take a picture of that label and post it here. Thanks...

 

Oh, by the way, a very nice used full height video card for that Tower workstation is the nVidia Quadro K2200, and the K620 also can use the same most recent drivers and has the higher capabilities of the K2200 too. The drivers for those cards can be more advanced than for the K2000 (which we also use). If you add a video card to a motherboard running a processors that has on-chip video capability it is usually possible to turn off the on-chip video from BIOS for best processor performance.

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the help you seek can be found in the HP z240 "quickspecs" for the SFF/Tower models

 

https://www.dectrader.com/docs/set06/492965/c04760707.htm

 

https://www.dectrader.com/pdf/quickspecs/15359_na/15359_na.html

 

and the intel CPU specs for the supported z240 cpu's

 

 Intel Xeon processor family or 6th Generation Intel Core i5/i7 processors (Skylake) or the 7th gen "Kaby Lake

 

read links and note listed CPU wattages

 

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The Performance heatsink/fan for the Z240 Tower is not that easy to find. Some sellers are listing the Z240 SFF smaller heatsink/fan as being for the Tower... not so. Some have listed a Z220 heatsink, also not so. I've also seen Z240 Tower workstations listed on eBay with the lower cooling capacity Mainstream heatsink atop processors that are over 65W max TDP (including the processor you're buying). Don't do that... and you should not have to if you have one of the Performance heatsinks already.

 

Here's some pics of the official Mainstream and Performance heatsinks for the Z240 Tower, both in and out of the box. Note how big the fan is... going beyond the heatsink hold-down screws. That is a 92x92x25mm fan:

 

s-l1600 (1).jpgs-l1600 (2).jpgs-l1600 (3).jpgZ240 Tower Performance heatsink & fan.jpg

 

Here is a Mainstream heatsink in the Z240... which should not be used for processors over 65W max TDP:

Z240 Tower Mainstream heatsink & fan.jpg

 

Smaller "Mainstream" heatsink/fanSmaller "Mainstream" heatsink/fan

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based on "SDH"'s pictures i suspect the HP z820/840 cpu cooler would also be a direct fit replacement for the z240 tower

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D...

 

Not so sure about that. Those don't have fans attached. I did a lot of research to prove to myself that the socket morphology sitting over the v3 and v4 processors used in the ZX40 workstations was the same as sitting over the ZX20 workstations. That was the case even though the pinout of the v1 and v2 processors is different from that of the v3/v4 processors... the pads inside those two generations of sockets is different but physically the heatsinks above cross-fit perfectly. Then I tested that concept and it worked every time.

 

It sure would be nice if the Z440 heatsink/fan I mentioned (which takes care of up to 140W max TDP v3/v4 processors) would also fit perfectly in a Z240 tower but I'd need to do more digging before I'd recommend that. I've switched HP fan plug ends to get stranger things to work but the FCLGA1151 socket might want a different heatsink over it. I'll let the OP do the research if he wishes.

 

 

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we use the z820 heatsinks in other systems by simply attaching a 60mm fan using plastic/nylon washers and zip ties

 

you could also use premade clips

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DGroves,

 

That is very interesting... it implies that the "superstructure" of the following motherboard sockets physically are all the same (but the pinouts at the bottom surface of the sockets are different) and thus that if one gets the right plug end wiring you could put any of the heatsinks/fans from any of these workstations onto the socket/motherboard hold-down screws and have things work. The fan plug ends for the Z240 Mainstream and Performance official heatsinks appear to be the conventional 4-pin white 3-ridge PWM type.  One can release the wires from one fan plug type and if you keep things in proper order you can swap them over to another fan plug type. Here's the socket type names for the following workstations that seem to have the same superstructure morphology:

 

Approved processor examples for Z240:

 

E3-1270v6
FCLGA1151

 

E3-1280v5
FCLGA1151

 

i7-7700K
FCLGA1151

 

i3-7100
FCLGA1151

 

Pentium G4560
FCLGA1151

 

Approved processor example for Z440:

 

E5-1560v4
FCLGA2011-3

 

Approced processor example for Z420:

E5-1560v2
FCLGA2011

 

 

This all assumes there is no motherboard component that sticks up and would get in the way of the bottom of the heatsink, or extend into the fan's space. I've used the large 140W cooling rated Z440 heatsink/fan in our Z420/Z620 single processor workstations for several years now and have posted on that here. Your experience suggests that same one might also work fine in a Z240 if there is enough room, just by swapping in the correct fan plug end. You might even be able to get it to fit using the original Z440 fan plug end if you just hang the last two (of 6) plug holes off beyond the motherboard's 4 pin CPU fan header... the official plug end for the Z240 use only 4 pin holes, while the plug end for that Z440 heatsink has 6 holes. In my experience HP keeps the conventional first 4 wire order the same on all of their PWM plugs (ground, 12VDC, rotor sense, PWM control).

 

If anyone wants to try that experiment on a Z240 here is the Z440 heatsink/fan part number and picture, and I'd be happy to measure the height from the bottom of the cooling plate to the top of the heatsink, and its other two main dimensions for you:

 

s-l1600.jpg

 

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most of the HP workstations and consumer systems which use the cases with the cpu cooler mounting locations integrated into the case use the same physical cpu Hight

 

this is what allows swapping the cpu's between the systems

 

also the HP mounting screws use small springs to create the proper tension between the cooler and cpu so as long as you don't go crazy compressing the spring you can get good thermal contact without causing damage to the cpu/socket

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.