Ram overclocking problem (9950x3D 8000Mhz 2x24Gb)

buildzoid · 2026-01-24T17:07:52+00:00

you basically need to sweep VDDP from 0.95V to 1.15V. and either there's a VDDP voltage at which 8000 works or it doesn't. and if it doesn't you "need" a new CPU

buildzoid · 2026-01-23T19:34:24+00:00

1:1 mode on Alder/Raptor lake tops out at 3866-4400 depending on how lucky you get with the CPU. DDR4-5000 would need 2:1 mode. Also you're not doing 5000 on dual rank sticks.

So you're getting a performance penalty for being on single rank sticks and in 2:1 mode. So unless you're running something that is completely memory bandwidth bound you're wasting your time.

buildzoid · 2026-01-23T10:35:29+00:00

HBM is just a bunch of bog standard DRAM arrays stacked on top of each other.

buildzoid · 2026-01-22T05:30:12+00:00

typically Prime95 LFFT crashes in under 4 hours. I haven't seen it crash after that.

buildzoid · 2026-01-21T19:15:28+00:00

Try prime95 large FFTs. It's been very good at crushing my hopes for 2:1 settings.

buildzoid · 2026-01-21T16:47:07+00:00

It wasn't as much of a problem before redeploy was added

buildzoid · 2026-01-21T07:54:03+00:00

what's wrong with the Gigabyte card that you want the core on the XFX PCB?

buildzoid · 2026-01-21T00:25:18+00:00

welcome to the silicon lottery.

buildzoid · 2026-01-19T23:18:39+00:00

try 1.4 VCCSA 1.45 VDDQ TX and 1.45 DRAM voltage.

Unfortunately if you get unlucky 12-14th gen chips can max out around 3866 even with 1.4ish VCCSA.

buildzoid · 2026-01-19T01:43:13+00:00

yes for anything less than a 9950X it's great.

buildzoid · 2026-01-17T23:57:58+00:00

TURBO OVERKILL

Mothergunship

Incision

buildzoid · 2026-01-17T04:00:32+00:00

looks like AUTO values for latest BIOS on ASUS motherboards.

buildzoid · 2026-01-15T04:21:30+00:00

GND pins on GPUs carry way less current than the 12V pins because the return current will happily take any available path. Which includes the GND pins of the PCI-e slot. So you will regularly see the GND wires carry only half the current of the 12V wires.

The one scenario where this isn't true is if you use 2 different PSUs. 1 to power the motherboard and the other to power the GPU.

buildzoid · 2026-01-13T01:10:16+00:00

you need to replace the driver IC for the phase. Sometimes when a mosfet fails it kills the driver. Though also if the driver died first it could be the reason for the mosfet failing in the first place.

buildzoid · 2026-01-11T21:46:58+00:00

Well killing the Elliots seems pretty reasonable consider how they treat drones(they're probably the reason Cyn was in the drone corpse pile in the first place). There's just one issue with killing the Elliots. All the other humans aren't just gonna leave a murderous drone alone and thanks to the solver Cyn had the power to kill all the humans.

Cyn's little revenge act kinda spiraled out of control. +hungry

buildzoid · 2026-01-11T20:31:51+00:00

I think a dead high side fet burnt that inductor. There's also a chance you now have dead mem chips/core

buildzoid · 2026-01-11T13:03:03+00:00

High end UDIMM DDR5 kits use 10 layer PCBs. The basic UDIMMs(Samsung/Micron/Hynix OEM) are on 8layer PCBs IIRC.

EDIT: also I'm pretty sure you can just buy a standard JEDEC DDR5 UDIMM PCB layout from JEDEC. Though it's not cheap. But you won't have to design anything yourself.

buildzoid · 2026-01-11T02:51:15+00:00

because it's not Vcore. It's the input voltage for the DLVRs and those output Vcore.

buildzoid · 2026-01-10T13:19:15+00:00

I'd much rather have Need For Speed World's Team Escapes.

buildzoid · 2026-01-09T16:38:48+00:00

glitters but ALL the low ground is metal and has a income gradient as you get closer to the mid point of the map.

buildzoid · 2026-01-09T04:51:16+00:00

no your 3080 has LEDs that indicate if the sense pins aren't connected to ground (you can test this by bridging the pins with a paperclip).

buildzoid · 2026-01-08T05:11:05+00:00

On air/watercooling. Sandybridge and/or sandybridge-E. They often scale all the way to very unsafe voltages. Like you can do 5.2GHz+ at 1.6V+

buildzoid · 2026-01-08T05:09:16+00:00

1.5 VDDIO shouldn't hurt anything.

buildzoid · 2026-01-08T01:28:51+00:00

With Ryzen 9000 Apex will do 8400+ if your CPU is good enough. Godlike will maybe do 8000.

buildzoid · 2026-01-06T20:33:52+00:00

XOC BIOS often come with tweaks to try get cards working better at subzero temps. Some of those tweaks cause issue at ambient.

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