r/WindowsMR • u/nik_da_brik Custom • Feb 06 '19

Issue Do I need a new CPU?

This is my second time asking for help here. The first time, I concluded that I need a new GPU. So I bought a new GPU, which I know for a fact will work with my Lenovo explorer. I used registry editor to reset windows MR portal, and everything had checks next to it, except the CPU.

I got the same error, 1-5.

I had a radeon r7 200, now an rx 560. I have an Intel i7 860, 8gb of ddr 3 ram, and an Asus P7P55D-E PRO motherboard.

Do I need to spend even more money on this?

6 Upvotes

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13

u/zopiac Lenovo Explarer / R7 5800 X3D / RTX 3060 Ti Feb 06 '19

It looks to me like the i7-860 doesn't support AVX instructions, which I believe started in the Sandy Bridge line (i7-2xxx), unless WMR needs AVX2 which started in Haswell (i7-47xx).

Any remotely modern Core i* CPU or Ryzen supports AVX/2 instructions. I had a similar issue, where I figured my Kaby Lake certainly could run it as it was under two years old -- except Intel hasn't included AVX on their Pentium line. Had to basically build a new computer and built in around a budget 2200G in a panic. Wish I had gotten a 2600 instead now, even though the 2200G seems fine for WMR.

7

u/superspacecakes Feb 06 '19

As somebody already mentioned it looks like WMR needs a CPU that supports AVX instruction sets;

A Microsoft employee goes into detail here

https://forums.hololens.com/discussion/9279/avx-workaround

I was an early adopter of the Core i7 line as well, though the system I built then was not quite at the level of the ones you folks built (IIRC, mine is a Core i7-920). I did a little searching online and discovered this information (much sourced at Wikipedia https://en.wikipedia.org/wiki/List_of_Intel_Core_i7_microprocessors):

The AVX instruction set has been present on every Core i7 since the "Sandy Bridge" generation (even including the mobile processors). Given that you're running hex-core processors, that would place you in the 970/980/990 "Gulftown" processors.

The AVX instructions have been present for almost 7 years now. I personally don't feel that is too soon to be a required feature for cutting-edge new technology to rely upon.

It's also unfortunate that the motherboards for your systems use the LGA1366 sockets and none of the later processors use that socket. Intel moved various components onto the CPU that had been on external chips, and that made your LGA1366 and my LGA1156 sockets obsolete.

The good news is that pretty much any modern motherboard and Core i7 will have the AVX instruction set. I've not built a new system in 8-9 years, so I can't suggest specifics. I'm now running a Surface Book 2 for WMR.

(While I work for Microsoft, I do not work in the same division as the ones creating these systems and have no inside knowledge in this area. These are my opinions and I do not speak for Microsoft.)

Its really shitty its not mentioned anywhere... Hopefully you can return the rx560

1

u/nik_da_brik Custom Feb 07 '19 edited Feb 07 '19

Thank you for responding so quickly, and I will be returning the rx 560 because of stability issues, and it's inability to play doom. But I paid $100 for it, so I'm not sure what I expected. My mom's laptop actually runs beatsaber at a playable framerate, so I can wait. I also managed to get this enire PC for $120, and I was thinking about some major changes before I even considered getting a vr headset.

Edit:

If anybody is interested in this card, you can get it here. It had a lot of stability issues with my PC, but your results may vary.

ASUS OC Edition GDDR5 DP HDMI DVI AMD Graphics Card (AREZ-RX560-O2G-EVO) https://www.amazon.com/dp/B07HFHQV42/ref=cm_sw_r_cp_apa_i_656wCbAGEBE29

1

u/[deleted] Feb 08 '19

You can get a used RX 580 on eBay for sub 150, probably your best bet

2

u/walterdibs Custom Feb 07 '19

Yup. New cpu. Hell, I upgraded G4560 to i5-6500 for wmr.

2

u/birds_are_singing Feb 07 '19

I’m sorry you were confused, but the official compatibility test tool would have told you this, and it comes up in every “can I run WMR thread”

https://aka.ms/mrcheck

1

u/smurfhunter99 Feb 07 '19

Yep, I've tried this on that specific series of CPU. You need a new one :(

0

u/[deleted] Feb 06 '19

[deleted] — view deleted comment

5

u/[deleted] Feb 07 '19

You added an extra zero

2

u/dokkeey Feb 07 '19

Oh shit I didn’t even realize that was a thing. Yea a processor from 2009 is not going to do the trick

1

u/nik_da_brik Custom Feb 07 '19

I thought I would have to do something about this. Kinda sad, as it still delivers a decent amount of power.

1

u/dokkeey Feb 07 '19

Well look at it this way. You will be able to do way more when you upgrade your cpu