Mac pro 2.1 crashing when a video is played on the browser

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Level 1

8 points

Mac pro 2.1 crashing when a video is played on the browser

I have a mac pro 2.1 with x5365 cpu and an AMD hd 5770 graphics card.I've installed Windows 8.1 64 bit on my old mac pro 2.1 via another pc using an ssd. I installed Windows on the SSD and than i put the SSD into my mac. It works absolutely fine, but when i play an online video using youtube, vimeo; it crashes. On the motherboard two led's light up and it says CPU 0 and CPU 1. I need to restart every time i accidentally open up a video. But you can watch the movies that are downloaded. What do i need to do about it?

Mac Pro, Windows 8

Posted on Dec 1, 2018 4:10 AM

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Answer 1

Loner T

Level 9

59,536 points

Dec 20, 2018 2:50 PM in response to ZSkiraly

Can you natively install Windows and run the same Vimeo video?

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Answer 2

Loner T

Level 9

59,536 points

Dec 1, 2018 6:46 AM in response to ZSkiraly

If you installed Windows on a PC, the drivers reflect the hardware on the PC, not your Mac. Most drivers will work, but GPU and Audio drivers are the more problematic ones. Keyboard/Mouse drivers come next. You should install the Apple BC-drivers instead of the stock WHQL drivers and test.

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Answer 3

ZSkiraly Author

Level 1

8 points

Dec 20, 2018 12:01 PM in response to Loner T

They've already been installed. I think that the problem is with the CPU missing some extensions and technologies like:

SSSE3 / Supplemental Streaming SIMD Extensions 3

SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4

AES / Advanced Encryption Standard instructions

AVX / Advanced Vector Extensions

AVX2 / Advanced Vector Extensions 2.0

BMI / BMI1 + BMI2 / Bit Manipulation instructions

F16C / 16-bit Floating-Point conversion instructions

FMA3 / 3-operand Fused Multiply-Add instructions

EM64T / Extended Memory 64 technology / Intel 64

HT / Hyper-Threading technology

VT-x / Virtualization technology

VT-d / Virtualization for directed I/O

TBT 2.0 / Turbo Boost technology 2.0

TSX / Transactional Synchronization Extensions

Or am i wrong?

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Mac pro 2.1 crashing when a video is played on the browser

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