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DDR5 (C36, C40) - What is difference please?


slicker55
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My Z690, i12900K, 3090 custom build is on hold ... waiting for Corsair DDR5 DRAM 5200MHz C38 to come into stock but their website is now also listing DDR5 DRAM 5600MHz in two variants C36 and C40. I guess I would be wise to choose the 5600MHz but (confused) which of the two variants is the best/fastest?

Edited by slicker55
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@tracerbull3t

Thanks, that's what I thought but just wanted to check before asking supplier to change the order. I've been waiting for over a month and with no sign of new stock arriving soon, not expecting any movement until after Christmas now so it would make sense to change my order because it's for a custom high-end build which will have to last many years!

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to be honest, you're going to want to swap out the RAM in about 12-18 months anyway...  I'm doing a similar build to you, Z690 ROG Hero, 12900k, ASUS Strix 3090 all water cooled... the MB will support up to 6400 Mhz and probably higher and the timings will improve, so think of your RAM as short term for a high end build! I finally got my hands on some Vengeance 4800 which arrives tomorrow, and it was way over priced, but take what you can get right now!

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9 hours ago, slicker55 said:

@tracerbull3t

Interesting,

I've also gone with the Hero and ASUS ROG Strix 3090

I think we've made a good choice 🙂

Are you building your own or having it made for you?

Oh, are you aware of the ASUS £100 Cash Back promo?

I already have the GPU, it's a beast! I was aware of it, but kind of forgot about it to be honest! Will get on that today, thank you!!

Building it myself.... Keeping my Corsair 680x case and 8 LL120 fans... everything else inside will be new other than GPU and some existing storage

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@tracerbull3t

I'd love to see some pics when you get your machine built

Re. ASUS cash back, not sure you have to literally buy the items together,

No harm in trying if you bought the parts from one or more of the specified suppliers... all you need to do is upload serial numbers for MB and CPU together with proof of purchase (invoices). 

Give it a go mate... you have nothing to lose 👍

 

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2 minutes ago, slicker55 said:

@tracerbull3t

I'd love to see some pics when you get your machine built

Re. ASUS cash back, not sure you have to literally buy the items together,

No harm in trying if you bought the parts from one or more of the specified suppliers... all you need to do is upload serial numbers for MB and CPU together with proof of purchase (invoices). 

Give it a go mate... you have nothing to lose 👍

 

I tried, no dice... such is life! Yep, doing the build when I get some downtime between Christmas and New Year, will share for sure!

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Weird, I didn't have any issues entering the serial numbers - not trying to teach you how to suck eggs but are you sure you used the right numbers as I almost slipped up... I started typing what I thought was the serial number for the motherboard and realised it was the part number - might be worth you double-checking. It would be such a shame if you missed out on this deal because of a simple mistake!

I'm sure someone asked a similar question on another forum a few days ago after buying the items separately from two different suppliers. Fortunately, both suppliers are on the list so no issues there but it can take up to 20 days for the claim to be processed.

In my case, the MB and CPU have been purchased as parts in a 'system build' and the supplier seems to think ASUS will not pay out but we'll see... like I said before, no harm in trying!

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You'll see I'm like a dog with a bone... ... doing some digging on your behalf and will let you know if I find anything...

Just checking...

Did you buy the items from one or more of the participating dealers (Scan OCUK Box CCL Novatech Ebuyer AWD-IT Currys Amazon Aria)?

Did you purchase the items during the promo period (i.e. after 27/10/21)?

What about contacting ASUS support?

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2 hours ago, slicker55 said:

🤞for you

Haha, I'm a numpty... despite checking the serial over and over I was missing a letter! Blaming it on the end of a long week! Submitted now... let's see if they accept it...

My Corsair Vengeance arrived today at least, so i'm ready to build in a few weeks!

Edited by tracerbull3t
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  • 3 weeks later...
On 12/10/2021 at 6:42 PM, slicker55 said:

Good job... 

I submitted my claim on 08/12/21 and the page just says 'pending'... 

Well... my invoices got approved, so getting £100 back at some point... finished my build as well...

Corsair 680x case
12900k with XC7 block
Asus Z690 Hero (the one which doesn't catch fire)
Asus 3090 Strix with XG7 block
XD5 Pump/reservoir (in second compartment in case)
Kingston Fury Beast 5200 (Until I get my hands on Corsair Dominator, and a BIOS update or 2)
8 LL120 fans with 240 top and 360 front rad
1000w Asus ROG PSU

PXL_20211229_115020951.jpg

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