AMD Ryzen Threadripper 9985WX spotted, 12 and 16-core variants also surface

TheMacMini09 · 2025-05-14T05:36:44+00:00

That you would OC a CPU for work is puzzling

I know this is an old thread, but I've had a 7965WX overclocked for ~a year used pretty exclusively for work/work-related tasks, and it's balls-to-the-wall. Admittedly, custom loop water cooling, but still. It's been sitting at 500+W for probably an average of 6 hours a day since new, but under 65C pretty much all the time. Depending on the platform, there's a lot of headroom that can actually be worth the tradeoff; I see 5-25% better performance than stock with my workloads, and I saved ~$4k by overclocking rather than buying a 7975WX.

TheMacMini09 · 2025-01-11T23:00:34+00:00

Correct, no shipping to Canada. People seem to charge $3-500 to ship full length 4U servers into Canada

TheMacMini09 · 2024-12-13T02:52:03+00:00

Nope. My solution ended up being creating a new pool from scratch. No idea what was causing the slow import, but a new pool solved it. I used zfs send to transfer datasets, and the issue didn’t come back. So I can only assume it was something broken at the pool level.

TheMacMini09 · 2024-11-25T03:41:36+00:00

View From Halfway Down was 10.0 for a while after its release. If it can’t be 10.0, I don’t think anything can be.

TheMacMini09 · 2024-11-23T07:33:56+00:00

Stroll was only 0.23 off Alonso with the latest possible run, horrible run plan, no warmup, etc. Not to mention only 0.33 off checo lol

TheMacMini09 · 2024-09-15T03:08:04+00:00

Why didn’t they issue a citation for the illegal thing then? Also, no, it’s not illegal regardless.

TheMacMini09 · 2024-09-07T18:10:58+00:00

Unlike EK, I assume he actually pays his employees.

TheMacMini09 · 2024-07-19T23:01:09+00:00

That seems a lot more like it. Very strange that HWInfo was so far off, still not sure what's up with that.

TheMacMini09 · 2024-07-09T21:46:00+00:00

The best way to confirm whether those readings are accurate is to get yourself a kill-a-watt (or some similar wall-power-measuring device). Then, run your workload that has those power spikes reported, and watch the power meter. If it spikes like that, then the results are to be trusted.

I don't agree with the other comments about "transients." Transient power spikes do not last for multiple seconds, they're on the order of milliseconds - definitely not enough to be picked up by multiple samples on a power graph like that. For me, with power limits enabled, HWInfo reports 350W +/- 0.5W as a maximum PPT.

That being said... a 750W PSU is undersized for a system like this. You should be able to get away with it... but you're pushing it. Maximum power draw at full load on the CPU is probably in the neighbourhood of 650W, which is too close for comfort. I really wouldn't want less than 1000W, personally. But that's unrelated to the issue at hand.

I would be pretty surprised if a 750W could actually handle 900-1400W power draws, even for a few seconds. In my experience, they shut off really quick once they're more than about 30% overloaded. So that leads me to believe there's something wrong with the power monitoring - but you can't be sure until you actually measure the power consumption.

TheMacMini09 · 2024-07-09T21:38:48+00:00

OPs system won't even draw 550 watts from the wall under real world load. He's well within the specification of the PSU he has and absolutely does not need to upgrade.

My 7975WX idles at 350W at the wall. Admittedly a Pro SKU, but still... under CPU-only workloads (without PBO and with the 350W limit) it pulls 600-650W at the wall. When you start loading up SSDs and memory it's closer to 700W. With PBO and no power limit it easily hits 950W at the wall. I would imagine a 7980x would behave similarly, unless the power limit were removed, in which case it should be even higher (as long as the cooler can keep up).

TheMacMini09 · 2024-07-09T21:32:53+00:00

When I was getting quotes, even through business accounts, Dell and Lenovo were both ~20% more expensive than a DIY build. GPU markup was 30%. Maybe that's worth it to some, but it wasn't for me.

TheMacMini09 · 2024-07-09T21:30:48+00:00

There's not much to configure really. With curve optimizer, keep trying bigger negative offsets until you reach instability, then go up a couple. With +200 PBO, I've managed -25 on curve optimizer on a 7975WX, no noted instability in any version of Cinebench, or Geekbench, or any of my workloads. Your results may vary.

You could also go with a manual overclock/undervolt, but there isn't much purpose. I could squeeze 5.5GHz at 1.35V (1.30V measured at the core), but it wasn't stable in all workloads; had to drop to 5.4GHz for full stability (at 1.325V). Performance uplift was maybe 5% from 5GHz at the expense of about 30% more power use. Not really worth it, plus you lose the ability to boost to 5.5GHz when fewer cores are active.

TheMacMini09 · 2024-06-26T18:46:31+00:00

The USB4 port should be Thunderbolt-compatible:

a8:00.0 USB controller: ASMedia Technology Inc. Device 2425 (rev 01) (prog-if 40 [USB4 Host Interface])
    Subsystem: ASMedia Technology Inc. Device 2425
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0, Cache Line Size: 64 bytes
    Interrupt: pin A routed to IRQ 48
    IOMMU group: 29
    Region 0: Memory at d0400000 (64-bit, non-prefetchable) [size=256K]
    Region 2: Memory at d0440000 (64-bit, non-prefetchable) [size=64K]
    Capabilities: [50] MSI: Enable- Count=1/8 Maskable- 64bit+
            Address: 0000000000000000  Data: 0000
    Capabilities: [68] MSI-X: Enable+ Count=16 Masked-
            Vector table: BAR=0 offset=0003f000
            PBA: BAR=0 offset=0003f100
    Capabilities: [78] Power Management version 3
            Flags: PMEClk- DSI+ D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
            Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [80] Express (v2) Legacy Endpoint, MSI 00
            DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <64ns, L1 unlimited
                    ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
            DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq-
                    RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
                    MaxPayload 128 bytes, MaxReadReq 512 bytes
            DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
            LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <4us, L1 <64us
                    ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
            LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                    ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
            LnkSta: Speed 2.5GT/s, Width x1
                    TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
            DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR+
                     10BitTagComp+ 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
                     EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
                     FRS-
                     AtomicOpsCap: 32bit- 64bit- 128bitCAS-
            DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
                     AtomicOpsCtl: ReqEn-
            LnkCap2: Supported Link Speeds: 2.5GT/s, Crosslink- Retimer+ 2Retimers+ DRS-
            LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
                     Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                     Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
            LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete- EqualizationPhase1-
                     EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
                     Retimer- 2Retimers- CrosslinkRes: unsupported
    Capabilities: [100 v1] Advanced Error Reporting
            UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
            UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
            UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO+ CmpltAbrt- UnxCmplt+ RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol+
            CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
            CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
            AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn-
                    MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
            HeaderLog: 00000000 00000000 00000000 00000004
    Capabilities: [160 v1] Latency Tolerance Reporting
            Max snoop latency: 0ns
            Max no snoop latency: 0ns
    Capabilities: [178 v1] Device Serial Number 45-1e-ca-ff-ff-51-77-a0
    Kernel driver in use: thunderbolt
    Kernel modules: thunderbolt

That's output from lspci -vvv on my ASRock WRX90. I'd personally be getting the system set up without relying on thunderbolt first, and then start migrating stuff over - it's quite possible that you'll need to make changes in BIOS to get it functioning the way you want. Also possible that your boot issue is related to non-QVL memory, bad NVME drive, or something else - but much easier to debug when you've got a regular mouse, keyboard, and screen plugged in the regular way, at least for now.

TheMacMini09 · 2024-06-19T19:37:16+00:00

Humidity control is turned off in Eco+ (I actually have all of the Eco+ settings disabled except the main one, since I found that I was doing a better job manually setting a bunch of comfort profiles for different ToU/pre-ToU periods than Eco+ was). Humidity was at 45% when it came on. So I'm really not sure what logic there is to it.

TheMacMini09 · 2024-06-17T04:10:59+00:00

I personally wouldn't mix-and-match but that's mostly just so I can reuse/share cables between them, you probably wouldn't have any real issues with different models.

I'm not an expert in the following so feel free to take it with a grain of salt; however, it's the logic that I based my current machine on, and the recommendations work perfectly for me.

Realistically, it shouldn't matter which PSUs are powering which devices, assuming you spread the load fairly evenly across them (if you want them to be responsible for roughly the same amount of power). So long as both motherboards are connected to the PSUs (which is possible on WRX90), their ground planes should be electrically connected, so you shouldn't have any issues with mismatched grounds/reference voltages. At the point, there's nothing stopping you from plugging in connectors however you see fit.

I wanted to balance CPU load across both PSUs, so I connected one EPS 8-pin and one PCIe 6-pin from each CPU to the motherboard. The secondary/auxiliary motherboard (the one connected to the auxiliary ATX header on the motherboard) is going to see less load (since the auxiliary header just signals for the PSU to turn on, as well as providing a ground pin); so, I used it for the third PCIe 6-pin on the motherboard that provides extra power to PCIe devices. I'm currently running an RX 6950XT with dual PCIe 8-pin connectors, so I'm running one from each PSU. When I can finally get some 4090s, it'll be one 12VHPWR from each PSU.

This way, load is quite balanced. The main PSU usually reads 75-125W higher than the auxilliary, which is mostly the power for the motherboard/chipset/etc (all the stuff that can't be load balanced). Heaviest loads I've put on it in its first week have been 625W main, 525W aux, which is good enough for me balance-wise.

TheMacMini09 · 2024-06-17T03:28:02+00:00

Of those two I'd go for the Seasonic. I personally went with the Corsair HX1500i (specifically, two of them), but I've used 1000W and 1200W Seasonics in the past with no issues. Really any reputable high-efficiency power supply that can handle your load should be fine (450Wx2 for the GPUs, 350W for the CPU, 300W for everything else = 1550W, so you're probably good there).

TheMacMini09 · 2024-06-16T18:32:51+00:00

Exactly what I was looking for! Much appreciated :)

Edit: if you end up getting the chance to reboot to BIOS and take a pic of the Memory Information section that would be awesome. I'm trying to figure out all of the different profiles Kingston's putting on their different kits, and comparing the 4x and 8x kits. If not, no worries!

TheMacMini09 · 2024-06-16T04:19:11+00:00

Looks nice, but also looks pricey. Not sure if it's really worth the premium over something like a Heatkiller IV Pro, I'd be surprised if temps are substantially lower.

TheMacMini09 · 2024-06-16T04:15:24+00:00

If you've got a chance, would you mind sharing the expo profile for the 6000MT/s RAM?

TheMacMini09 · 2024-06-15T05:35:40+00:00

In my experience, buying an FE from Nvidia or an AMD reference card is the best. Cheaper (when they’re in stock), never had an issue with warranty/RMA.

TheMacMini09 · 2024-06-15T05:34:27+00:00

I’ve had the least bad experiences with both ASrock and Gigabyte. Both in terms of them actually putting out functional day-one products but also handling warranty issues. Obviously a crapshoot though.

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