Flashed 4,1 to 5,1...12 core

[LALontoc]

I'm sure there's a thread on this but I couldn't find one...I'm going to buy a 12 core but some are standard 5,1's upgraded to 12 cores while others were 4,1's flashed to 5,1 and then upgraded to 12 Core.

Is there is a difference between the 4,1's upgraded to 5,1 versus a 5,1?

If so, what should I look out for? Concerns?

Thanks,

Lee

 

[usna92]

The differences from what I have been able to ascertain, and others can describe it better, are that the CPUs in the dual processor 4,1s are lidless. There are also some minor SMC and backplane differences. If you do not plan on doing anything with the processors I would imagine the differences are negligible, but you should get someone with a 4,1 to chime in. I managed to grab two 5,1s when my company was upgrading machines, so I haven't had to cope with the differences personally.

 

[DPUser]

I'm sure there's a thread on this but I couldn't find one...I'm going to buy a 12 core but some are standard 5,1's upgraded to 12 cores while others were 4,1's flashed to 5,1 and then upgraded to 12 Core.

Is there is a difference between the 4,1's upgraded to 5,1 versus a 5,1?

If so, what should I look out for? Concerns?

Thanks,

Lee

Dual CPU 4,1s require de-lidded CPUs. A flashed 4,1 should sell for less... it's older, than a 5,1 (less remaining life) and the stock GPU is less powerful/valuable.

The above stated, I am a happy owner of two self-flashed 4,1s.

 

[h9826790]

Dual CPU 4,1s require de-lidded CPUs. A flashed 4,1 should sell for less... it's older, than a 5,1 (less remaining life) and the stock GPU is less powerful/valuable.

The above stated, I am a happy owner of two self-flashed 4,1s.

De-lid is not really required, but may be preferred during CPU upgrade, because the stock dual processor 4,1 come with de-lidded CPUs. However, normal lidded CPU can work flawlessly on a dual processor 4,1. Just the installation process is harder and easier to accidentally damage the socket.

 

[carpsafari]

Dual CPU 4,1s require de-lidded CPUs. A flashed 4,1 should sell for less... it's older, than a 5,1 (less remaining life) and the stock GPU is less powerful/valuable.

The above stated, I am a happy owner of two self-flashed 4,1s.

Wow, you really have no clue do you?
I can't say enough, de'lidding is 100% unneccesary, but there are a lot of monkeys spreading the word, not knowing any better.

A 5.1 sells for more, because many are to stupid to realize there is no difference between een 2009 MP and a 2012 MP, but the same monkey's tell each other the 5.1 is 'newer'.
When you do an upgrade you will take out ALL components anyway, thus throwing your unborn baby in the garbage.

 

[mattspace]

If you do not plan on doing anything with the processors I would imagine the differences are negligible, but you should get someone with a 4,1 to chime in.

I paid a premium to get tested de-lidded cpus for my 4,1 8 core 2.26 -> 12 core 3.06. My mindset was that while it was more expensive, its the only cpu upgrade the machine will ever have, and a far more turnkey solution for someone who'd never done a cpu swap. So that justified spending a bit more on keeping it more standard.

 

[h9826790]

Wow, you really have no clue do you?
I can't say enough, de'lidding is 100% unneccesary, but there are a lot of monkeys spreading the word, not knowing any better.

A 5.1 sells for more, because many are to stupid to realize there is no difference between een 2009 MP and a 2012 MP, but the same monkey's tell each other the 5.1 is 'newer'.
When you do an upgrade you will take out ALL components anyway, thus throwing your unborn baby in the garbage.

I think he mean the same hardware, but manufacture later, so it's "newer" (but not stronger). And during upgrade, some components like PSU, fans will stay. That means if a fan can last for exactly 10 years. The fan on a 2009 Mac Pro will fail in 2019, but a 2012 Mac Pro's fan should able to work until 2022. So it last "longer" (start the clock at 2017 for both machine), even though both components are exactly the same, and both can only last for 10 years.

 

[carpsafari]

When you mean this to exonarate the idiots buying 'newer' MP's, you just proved my point!

 

[h9826790]

When you mean this to exonarate the idiots buying 'newer' MP's, you just proved my point!

No, I didn't prove your point. I personally don't think there is any actually difference between 4,1 and 5,1 (of course they have minor difference like SMC version, or the 4,1 dual processors are de-lidded, etc. However, in term of spec / performance, they are technically identical). But the later manufacture machine should die later is just common sense (especially we are talking about the same hardware), there is nothing wrong to pay more to buy something that should die later. I can't see why someone has common sense is idiot. Or you are unable to understand this simple logic?

It's clearly that no one will upgrade ALL cMP's components (e.g. Logic board, PSU, fans), then what's wrong to pay more and buy something should last longer (from now)?

I personally believe that both 4,1 and 5,1 will last long enough. And I will be forced to buy a whole new machine because it's too slow / lack of new functions / etc before it die. So, their real life span is not my concern. But I can't argue that 4,1 was manufactured before 5,1, and a 4,1 most likely will die before a 5,1.

 

[carpsafari]

Well you did prove my point, whether you want to or not.

In Europe a 4.1 8-core will cost ±€750, but a 2012 5.1 at least €1500.
So anybody paying €750 for newer PSU and motherboard should have his head examined.

 

[h9826790]

Well you did prove my point, whether you want to or not.

In Europe a 4.1 8-core will cost ±€750, but a 2012 5.1 at least €1500.
So anybody paying €750 for newer PSU and motherboard should have his head examined.

No, I didn't. I know what I was talking no matter what you believe.

That's just your numbers in your country. In my places, the difference is less then USD $100. If you believe that everyone on the world should use your country's price as reference to make their decision. Then your head should be examined.

 

[orph]

4.1's have a lower price than the 5.1 apart from that there identical practically.
4.1 will be older so a later production 5.1 may have a longer life.

there both old so dont pay to much for one there using first gen i7's effectively aka something like a i7 980 so much older/slower than newer macs so unless it's cheep or for fun dont pay to much for one and relay look at an imac before you buy.
good luck

ps also cheaper to pick up a macpro with a stock cpu the upgrade it yourself, in the UK gumtree is a good place to look

 

[DPUser]

My goodness, carpsafari, you certainly are a very pleasant person.

May I point out that, if you can't understand the logic I presented in my first post, you may be a good fit for the derogatory labels you have attached to me and others. "Newer" doesn't necessarily mean a different design (although it is a lot simpler to upgrade a 5,1 dual CPU MP than a 4,1 dual due to the lack of IHS on 4,1 dual CPU MPs; absent delidding, great care must be used when upgrading 4,1 duals to avoid crushing CPU socket pins. Also, thicker thermal pad material must be added). All other factors being equal, I prefer to purchase devices manufactured more recently. Components within electronic devices, notably capacitors, do not last forever and, as emphasized by the always polite h9826790 (a sincere thanks for your many contributions to this forum sir), a newer machine is more likely to provide additional years of service before failing due to age.

That said, I have purchased and upgraded two 4,1s from the stock CPUs and use them daily. My basic point to the OP was to avoid paying a 5,1 price for a 4,1 machine.

Thank you Macrumors for allowing me to ignore the posts of unfortunately arrogant individuals.

 

[ActionableMango]

Is there is a difference between the 4,1's upgraded to 5,1 versus a 5,1?

• 4,1 seems to have much more likely GPU high fan speed problem than 5,1
• Does not come by default with a Wi-Fi card--it was an option
• Comes with 1066 RAM instead of 1333
• Models with dual CPUs are more difficult to upgrade the CPUs, as has already been mentioned

 

[carpsafari]

That said, I have purchased and upgraded two 4,1s from the stock CPUs and use them daily. My basic point to the OP was to avoid paying a 5,1 price for a 4,1 machine.

So you confirm what I've stated many times.