She has arrived, but one thing?

Zeebedy · 12 Mar 2024 at 13:42

Hey guys,

received my Mac Pro today and man its gorgeous. The issue I'm having though, is in 1440p it won't let me change the refresh rate (my monitor supports up to 240Hz), but when I downscale to 1080p I can change it.

Now, is this the Mac Pro or the cable I'm using to test out. Surely the cable? unless MP doesn't support it.

FWIW I have the MP model with the dual D500 GPUs.

Cheers guys!

PaulM · 12 Mar 2024 at 13:55

Are you using the HDMI port or one of the mini-DP ports? What cable are you using?

visibleman · 12 Mar 2024 at 13:57

IIRC it was DisplayPort 1.2 on the 'trashcan' which means you will be limited to 144Hz @ 1440p due to bandwidth.
HDMI was 1.4, so 75Hz @ 1440p (i think).

Edit - I'm going off rusty memory as it's been a long time since i've touched a 'trashcan', so this could entirely be wrong :cry:

Zeebedy · 12 Mar 2024 at 14:01

PaulM said:
Are you using the HDMI port or one of the mini-DP ports? What cable are you using?

yeah HDMI to HDMI. Its a budget cable from the rainforest, so im assuming it might be that.

visibleman said:
IIRC it was DisplayPort 1.2 on the 'trashcan' which means you will be limited to 144Hz @ 1440p due to bandwidth.
HDMI was 1.4.

Edit - I'm going off rusty memory as it's been a long time since i've touched a trashcan, so this could entirely be wrong

That would be fine for me, 144Hz. For what this will be used for. But defiantly struggling at 60Hz here atm!

PaulM · 12 Mar 2024 at 14:05

Zeebedy said:
yeah HDMI to HDMI. Its a budget cable from the rainforest, so im assuming it might be that.

ah yeah, you definitely won't be able to do 1440p @ 120hz+ over the HDMI 1.4 port, the mini-DP should work though (not 240, but 144 should be OK).

visibleman · 12 Mar 2024 at 14:05

Zeebedy said:
That would be fine for me, 144Hz. For what this will be used for. But defiantly struggling at 60Hz here atm!

What monitor are you using? As you need to be using DisplayPort.

Armageus · 12 Mar 2024 at 14:08

Fairly sure HDMI1.4 won't do more than 75hz @ 1440p

HDMI - Wikipedia

en.wikipedia.org

Displayport (should be version 1.2 as part of Thunderbolt 2 spec) should do 165hz @ 1440p as per HBR2 column

DisplayPort - Wikipedia

en.wikipedia.org

Zeebedy · 12 Mar 2024 at 14:08

PaulM said:
ah yeah, you definitely won't be able to do 1440p @ 120hz+ over the HDMI 1.4 port, the mini-DP should work though (not 240, but 144 should be OK).

so even a good quality cable won't do 144Hz at 1440p?

visibleman said:
What monitor are you using? As you need to be using DisplayPort.

Its a Samsung one, will check the model in a bit.

So what cable do I need to get this to work at 144Hz?

PaulM · 12 Mar 2024 at 14:10

Zeebedy said:
so even a good quality cable won't do 144Hz at 1440p?

Not via HDMI. HDMI 1.4 doesn't support 144Hz at 1440p, doesn't have the bandwidth.

Zeebedy · 12 Mar 2024 at 14:11

Armageus said:
Fairly sure HDMI1.4 won't do more than 75hz @ 1440p

HDMI - Wikipedia

en.wikipedia.org

Displayport (should be version 1.2 as part of Thunderbolt 2 spec) should do 165hz @ 1440p as per HBR2 column

DisplayPort - Wikipedia

en.wikipedia.org

can you point me to the rainforest to see what cable I need?

Zeebedy · 12 Mar 2024 at 14:11

PaulM said:
Not via HDMI. HDMI 1.4 doesn't support 144Hz at 1440p, doesn't have the bandwidth.

that's unfortunate.

Zeebedy · 12 Mar 2024 at 14:12

im currently looking at DP to Mini DP?

is that correct?

visibleman · 12 Mar 2024 at 14:12

Zeebedy said:
Its a Samsung one, will check the model in a bit.

Grab the model number and post it, as someone can then see what options you have

Armageus · 12 Mar 2024 at 14:21

Zeebedy said:
can you point me to the rainforest to see what cable I need?

No because OcUK sell display cables (although the range is admittedly pretty poor!)

Zeebedy said:
im currently looking at DP to Mini DP?

is that correct?

Yes

Something like this, but ideally look for one labelled as DP 1.4, 4k@144hz or similar

My basket at OcUK:

1 x OcUK Value Mini DisplayPort to DisplayPort Cable 2m (SKU: CB-089-OK) = £4.69

Total: £8.69 (includes delivery: £3.99)

Zeebedy · 12 Mar 2024 at 14:24

visibleman said:
Grab the model number and post it, as someone can then see what options you have

Samsung Odyssey G6 LS32Bg650EUXXU.

Zeebedy · 12 Mar 2024 at 14:25

Armageus said:
No because OcUK sell display cables (although the range is admittedly pretty poor!)

Yes

Something like this, but ideally look for one labelled as DP 1.4, 4k@144hz or similar

My basket at OcUK:

1 x OcUK Value Mini DisplayPort to DisplayPort Cable 2m (SKU: CB-089-OK) = £4.69

Total: £8.69 (includes delivery: £3.99)

thank you, and that would just plug into and 6 of the mini DP on the MP?

Armageus · 12 Mar 2024 at 14:28

Zeebedy said:
thank you, and that would just plug into and 6 of the mini DP on the MP?

As far as I know (I'm not a Mac guy!)

Thunderbolt version 1 and 2 (as used by your Mac Pro) just use Mini displayport connectors - with thunderbolt 3 onwards they changed to USB-C connectors

Zeebedy · 12 Mar 2024 at 14:31

Armageus said:
As far as I know (I'm not a Mac guy!)

Thunderbolt version 1 and 2 (as used by your Mac Pro) just use Mini displayport connectors - with thunderbolt 3 onwards they changed to USB-C connectors

awesome stuff, thank you.

Feek · 12 Mar 2024 at 15:13

Can't believe you actually did this.

You need your bump feeling :cry:

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forums.overclockers.co.uk

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Zeebedy · 12 Mar 2024 at 15:20

Feek said:
Can't believe you actually did this.

You need your bump feeling

Mac Pro 6,1 (2013) in 2021?

Hey guys, I’m just reading around, how would this stack up against a M1 mini in 2021? Just weighing up my options in case of some of the horror stories from the early M1 chips continue to persist for a fair period of time.. can pick up in similar price bracket to my 16gb mini on order, plus I...

forums.overclockers.co.uk

Mac Pro 6,1 (2013) in 2021?

Hey guys, I’m just reading around, how would this stack up against a M1 mini in 2021? Just weighing up my options in case of some of the horror stories from the early M1 chips continue to persist for a fair period of time.. can pick up in similar price bracket to my 16gb mini on order, plus I...

forums.overclockers.co.uk

My bad. I do have the memory of a goldfish.

That is my excuse

Seriously though. Apologies.