Upgrading to a 3080ti on a Z440

[Impalakev]

Good afternoon community. I recently purchased a z440 with the 700 w power supply. When I tried to run a 3080 TI in the rig and the total power consumption was about 580 watts, the machine would shutdown and reboot. I've read a lot about the power supply and it should be able to run the card at Total TDP of 350 w. I have high quality 6-pin to 6+2 pin converters. 

I have upgraded the BIOS to the latest version and everything should be set to stock. Just asking if other people have had this issue or am I missing a setting. Thank you very much in advance!

Edit: I realize the manual has this: Up to 225 W graphics or compute card in the primary graphics slot (700 W PSU)

Does anyone know if this is a coded system limitation or is it just being conservative with power supply numbers?

[NonSequitur777]

@Impalakev,

Welcome to our HP community forum!

Your 700-watt power supply should be sufficient to power your RTX 3080 Ti.

Each 6-pin PCIe power cable should be able deliver 12V x 18A = 216 watt of power each, and your PCIe x16 slot an additional 75 watt.

The 700-watt power supply, with p/n: 758467-001 (or: 792339-001), has these specs: "Power supply - Rated at 700 Watts, 90% efficient rating - Specifications include Wide-ranging, active Power Factor Correction (PFC) - Energy Star qualified (configuration dependent), 100 – 240 VAC input", which means that this power supply should be able to provide at least 630 watt without breaking a sweat.

An HP Z440 Workstation has been my latest legacy upgrade project: Solved: Upgrading an HP Z440 Workstation - HP Support Community - 9015888, and the RTX 3080 (TDP: 320 watt) I installed has had no power problems.

[EDIT:] Let's troubleshoot this.  First, assuming your RTX 3080 Ti uses all 350 watt, what other electronic components are using up the other 230 watt?

Secondly, whilst powered off and disconnected from power (holding down your Workstation's power button for 5 seconds in order to release any residual power), thoroughly clean your motherboard, RAM and PCIe slots and power supply with compressed ("canned") air to prevent any unwanted electrical discharges.  Also, inspect your motherboard and PC components very carefully for any discolorations or burn marks, and inspect your motherboard's capacitors for any bulging &/or leakages.

Kind Regards,

NonSequitur777

[Impalakev]

Afternoon! I did read your posts and happy that you saw mine. I did as you directed and made sure to use canned air and clean the system. I also checked capacitors for any bulging or burned signs. All clear on the Western front. 

In the meantime, with the 3080 TI in the system, I was able to use an online stress test and regularly got up to our 575 w range with no breakdown...now only for a few minutes but dual stress test would have tripped something.

Additionally, I was also able to use the same program just with a 3070 in the system and it would run consistently.

Is there any kind of setting or bios setting that I might be missing?

[NonSequitur777]

@Impalakev,

Is your BIOS updated to the latest version (v02.62)?

Link: HP Z440 Workstation Software and Driver Downloads | HP® Support.

And like I mentioned in my previous post, I would like to know what other wattage-consuming components you got in your Workstation.  One experiment you could try, is to disconnect all secondary drive(s) and any other accessories you can miss for a moment and rerun the stress test with your RTX 3080 Ti.

Kind Regards,

NonSequitur777

[Impalakev]

Evening!

Yep, upgraded the BIOS upon arrival. 

It was a bare bones system, no optical drive, no options besides the front fan near the speaker. The RAM is lenovo hma42gr7afr4n uh td ab at 4 sticks for 64 total. The only option was a wireless card which is slotted into the first pcie, and a 512gb 2.5" SSD . The processor is the E5-2699 V3.  My internet is down right now, but I can retest after it come back up. 

/r,

Impalakev

[Impalakev]

Evening Again, 

I was able get to the Z440 back online and stress test again. It seems to be just fine when I run a test online, and gets to about 575 watts...but when I run Salad.com for renting the computing power, it resets after a few minutes when it finds a container to compute. I'm beginning to think it may not be a power issue. Is there some further route I can head down? 

I just ran the system file checker and it did find some files, and repaired them. I also ran the reliability tool in Windows but it just had Miscellaneous Failures...figures lol

Regards,

Impalakev 

[NonSequitur777]

@Impalakev,

The only other thought I have about your issue is that "officially" an 850-watt power supply is recommended to power an RTX 3080 Ti, even though the high-quality 700-watt HP power supply should work, but who knows?  -Meaning, the problem could be your power supply.  If you could install your RTX 3080 Ti in a PC powered by an 850+ watt power supply, this will tell.  Or your RTX 3080 Ti could have issues, I suppose.

Kind Regards,

NonSequitur777

[Impalakev]

Thank you very much for giving me some paths to follow in this upgrade. I did decide to take out the 3080ti and test it with a bare bones 750w system I have; no issues. The z440 system is also running with a 3070 TI right now for over 24 hours without rebooting. 

I really don't have any idea why it would shut down while running this particular instance of Salad... Maybe it's the virtualization, maybe it's just a hard limitation of the board, or maybe it was the power supply all along.

I could try something like tiny 11 and see if that works but I'm not ready to go down that route yet. 

[NonSequitur777]

@Impalakev,

Unless proven otherwise, I'm definitely leaning towards a desktop power issue -mind you, not necessarily the power supply itself, but some kind of power drainage (230 watt) that still (?) has not been accounted for like I commented earlier, quote: "Let's troubleshoot this.  First, assuming your RTX 3080 Ti uses all 350 watt, what other electronic components are using up the other 230 watt?" (emphasis added.)

Kind Regards,

NonSequitur777

[Impalakev]

Sorry for the choppy replies. Components:

E5-2699 V3 (140w TDP?)

CPU Fan

RTX3080TI (350w max)

64 GB RAM 

SSD Drive

Chassis Fan

Wireless card

That's all the components in there right now. Rather bare bones stock. 

/R,

Impalakev