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Can I trust Ram from eBay?
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brentonstrine
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PostPosted: Sun Feb 03, 2013 3:29 am    Post subject: Can I trust Ram from eBay? Reply with quote

I have a 2011 Macmini5,2 (MC815LL/a) with the Radeon GPU. I'm thinking of upping to 16gb, and these forums helped me to determine that I need DDR3 1333MHz PC3-10600 204-Pin SO-DIMM.

I found something that matches that on eBay for only $70! The specs are mostly the same as from Ram I see from trusted sellers for my model. (I noticed it has lower voltage, and it doesn't say it's "matched", it just says "kit".) How can I know if it will be good or not since it doesn't tell me the brand or where it came from? Should I take the risk or should I pay $40 more?

    Memory Size: 2x8GB (2sticks of 8GB) Kit
    Memory Type: DDR3 PC10600 SODIMM
    Density: Low Density
    Speed: 1333MHz
    Machine Base: For Laptop
    Pins: 204 Pins
    Voltage: 1.35V
    Cas Latency: 9
    Buffered: Unbuffered
    ECC: Non ECC
    Registered: Non Registered
    Dual Channel: Support
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Smithcraft
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PostPosted: Sun Feb 03, 2013 3:51 am    Post subject: Reply with quote

You can look at the sellers feedback, and what kind of protection they provide the seller. Is it Joe Schmoe, or a eBay based retail outlet?

SC
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[Desktop] Intel mini - 2.16Ghz 2GB 60GB HDD - Newer miniStack v2 500GB - 10.5.8

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Brendan
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PostPosted: Sun Feb 03, 2013 7:24 am    Post subject: Reply with quote

I tend not to buy things that might need returning from ebay. As I think SC was stating, look at the return policy, if any.

Brendan
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brentonstrine
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PostPosted: Sun Feb 03, 2013 12:19 pm    Post subject: Reply with quote

Smithcraft wrote:
Is it Joe Schmoe, or a eBay based retail outlet?
Brendan wrote:
As I think SC was stating, look at the return policy, if any.


It's a power seller with 99.1% positive feedback--negatives are mostly shipping issues. I'm willing to risk on that, but I worry more that the RAM somehow won't work on the mini or that it will somehow be slower than the RAM that is built in (since I don't know a lot about RAM specs).

For example, are all RAM "kits" also "matched kits"?

The eBay item is here, which I'm comparing to this OWC memory.

This is the best I can do to match the specs based on the descriptions of both. Is there important information missing, or will the eBay RAM be as good as OWC, if delivered as promised?

Code:

DDR3 PC10600 1333MHz Non-ECC 204-pin 2x8GB  SODIMM

              OWC          | eBay
Kit:         "Matched Kit" |"Kit"
Density:      8GB (8192MB) |"Low Density"
Voltage:      1.5V         | 1.35V
RoHS:         Yes          | 
Cycle Time:   1.875ns      |
CAS Latency:  9-9-9-24     | 9
Module Ranks: Dual Rank
Dual Channel:              | Support
Register:     Non Parity
Registered:                | Non Registered
Buffered:     ?            | Unbuffered
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Bandit Bill
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PostPosted: Sun Feb 03, 2013 12:42 pm    Post subject: Re: Can I trust Ram from eBay? Reply with quote

brentonstrine wrote:
Should I take the risk or should I pay $40 more?


I'd pay the extra $40 for the OWC RAM, without even questioning the decision. I would want to know my Mac will be stable, and not have to question the RAM every time, you have an issue. 10s of 1000's of Mac users use OWC RAM with great success. The company is also very good.

Why would you buy a Mac and then shop for the cheapest RAM you can find, that hasn't been tested with your computer? If cheap is good, then cheaper is better... right? I don't think so.

Not all RAM is created equal, even if the specs are equal.

BTW matched pair and kit, are the same thing. It just means both chips are equal.

Also, look at OWCs memory rebate for you old RAM. That will help balance out the difference.
http://eshop.macsales.com/tech_center/support/rebates/
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Smithcraft
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PostPosted: Sun Feb 03, 2013 3:23 pm    Post subject: Reply with quote

I think I'm one of the two people who found doing any business with OWC to be worse than having a horse kick me in the head. So I won't do any business with them.

SC
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[Desktop] Intel mini - 2.16Ghz 2GB 60GB HDD - Newer miniStack v2 500GB - 10.5.8

[Media System] Intel i5 mini - 2.33Ghz 8GB 500GB HDD - 4 x Hitachi 2TB HDD in a qBOX-SF - 10.7.5 (Thanks Phil!)

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Bandit Bill
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PostPosted: Sun Feb 03, 2013 9:01 pm    Post subject: Reply with quote

Smithcraft wrote:
I think I'm one of the two people who found doing any business with OWC to be worse than having a horse kick me in the head. So I won't do any business with them.

SC


I'm sure you aren't the only one. They are a big company, so they are bound to drop the ball every once in a while.

Even if they were terrible. I'd still rather deal with them than an eBay reseller.

BTW, if you like OWC products, you can source their products through resellers as well. My stores sells OWC products along with Monoprice, Newtechnologies etc.
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marv777
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PostPosted: Sun Feb 03, 2013 10:23 pm    Post subject: Ram Reply with quote

brentonstrine wrote:
Smithcraft wrote:
Is it Joe Schmoe, or a eBay based retail outlet?
Brendan wrote:
As I think SC was stating, look at the return policy, if any.


It's a power seller with 99.1% positive feedback--negatives are mostly shipping issues. I'm willing to risk on that, but I worry more that the RAM somehow won't work on the mini or that it will somehow be slower than the RAM that is built in (since I don't know a lot about RAM specs).

For example, are all RAM "kits" also "matched kits"?

The eBay item is here, which I'm comparing to this OWC memory.

This is the best I can do to match the specs based on the descriptions of both. Is there important information missing, or will the eBay RAM be as good as OWC, if delivered as promised?

Code:

DDR3 PC10600 1333MHz Non-ECC 204-pin 2x8GB  SODIMM

              OWC          | eBay
Kit:         "Matched Kit" |"Kit"
Density:      8GB (8192MB) |"Low Density"
Voltage:      1.5V         | 1.35V
RoHS:         Yes          | 
Cycle Time:   1.875ns      |
CAS Latency:  9-9-9-24     | 9
Module Ranks: Dual Rank
Dual Channel:              | Support
Register:     Non Parity
Registered:                | Non Registered
Buffered:     ?            | Unbuffered
It is better to be safe than sorry. Spend a little more money and go for the better ram. I would not take a chance.
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Smithcraft
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PostPosted: Mon Feb 04, 2013 4:14 am    Post subject: Reply with quote

Another point about the memory - When I bought my G4 mini it had a 512 MB stick, and not wasting time, I picked up a 1 GB stick on the way home. I bought the rated speed of memory, but when I opened it up, it had faster memory from Apple.

I would venture to guess that memory that is sold as whatever the rated speed or other qualifier is, should be fine. Also, look for a brand name, or find out the manufacturer of the memory and Google them.

I would rather deal with a well rated eBay seller than have to deal with OWC dicking me around till after the return window, refuse to accept a return on a product they knew was defective, and push me off to the manufacturer who didn't want to support me either 'cuz I was past the support window.

SC
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[Desktop] Intel mini - 2.16Ghz 2GB 60GB HDD - Newer miniStack v2 500GB - 10.5.8

[Media System] Intel i5 mini - 2.33Ghz 8GB 500GB HDD - 4 x Hitachi 2TB HDD in a qBOX-SF - 10.7.5 (Thanks Phil!)

Make sure it has pins!
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philiparcario
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PostPosted: Mon Feb 04, 2013 10:41 am    Post subject: Reply with quote

read the for sale classified i will post some for you
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2012Mm base 2.5 with 16gb ram diy fusion drive
2012Mm quad with 8gb ram oem 1tb hdd

promise pegasus r6 3x 3tb + 3x 4tb =21tb hdds
lacie little big disk 2x 512gb ssds
synology 2tb disk station
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marv777
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PostPosted: Mon Feb 04, 2013 10:46 pm    Post subject: Ram Reply with quote

Smithcraft wrote:
Another point about the memory - When I bought my G4 mini it had a 512 MB stick, and not wasting time, I picked up a 1 GB stick on the way home. I bought the rated speed of memory, but when I opened it up, it had faster memory from Apple.

I would venture to guess that memory that is sold as whatever the rated speed or other qualifier is, should be fine. Also, look for a brand name, or find out the manufacturer of the memory and Google them.

I would rather deal with a well rated eBay seller than have to deal with OWC dicking me around till after the return window, refuse to accept a return on a product they knew was defective, and push me off to the manufacturer who didn't want to support me either 'cuz I was past the support window.

SC
Apple I found out uses samsung memory in their computers sometimes.
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philiparcario
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PostPosted: Mon Feb 04, 2013 11:31 pm    Post subject: Reply with quote

apple uses;

samsung

hynix

micron /crucial


elpida

once in a while mushkin.

this is based on about 400 macs that I have upgraded ram in.
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2010 Mm 2.4 C2D oem 320gb hdd 8gb ram
2012Mm base 2.5 with 16gb ram diy fusion drive
2012Mm quad with 8gb ram oem 1tb hdd

promise pegasus r6 3x 3tb + 3x 4tb =21tb hdds
lacie little big disk 2x 512gb ssds
synology 2tb disk station
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b0bb
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PostPosted: Tue Feb 05, 2013 2:53 am    Post subject: Re: Can I trust Ram from eBay? Reply with quote

brentonstrine wrote:
I have a 2011 Macmini5,2 (MC815LL/a) with the Radeon GPU. I'm thinking of upping to 16gb, and these forums helped me to determine that I need DDR3 1333MHz PC3-10600 204-Pin SO-DIMM.

I found something that matches that on eBay for only $70! The specs are mostly the same as from Ram I see from trusted sellers for my model. (I noticed it has lower voltage, and it doesn't say it's "matched", it just says "kit".) How can I know if it will be good or not since it doesn't tell me the brand or where it came from? Should I take the risk or should I pay $40 more?

    Memory Size: 2x8GB (2sticks of 8GB) Kit
    Memory Type: DDR3 PC10600 SODIMM
    Density: Low Density
    Speed: 1333MHz
    Machine Base: For Laptop
    Pins: 204 Pins
    Voltage: 1.35V
    Cas Latency: 9
    Buffered: Unbuffered
    ECC: Non ECC
    Registered: Non Registered
    Dual Channel: Support


I would go for 1.5V memory for a 2011. The 2012s use 1.35V.

Ebay can be a mixed bag. Your best bet would be to locate the right memory module using the online configurators like the ones from Kingston, Micron/Crucial make available and then get the module on Ebay.

OWC is good and most of their stuff including memory just works on the Mac if you are willing to pay 20-40 extra.

If you want to get a non recommended module, it is better to get one made by the manufacturer themselves. Samsung, Micron/Crucial and Elpida all make their own branded memory. DDR3-1333 CL9 1.5V Unregistered Non-ECC are the ones most likely to work.

I have a 2011 i7 and I am using the Kingston DDR-1600 CL9 HyperX PnP (KHX16S9P1K2/16). This is pushing the envelope on a 2011 Mini.

I also used the a pair of 8GB modules made by Elpida I got off Ebay (EBJ81UG8BAS0-DJ-F). I believe the seller is still on Ebay.

Compared to Apple memory , I lose the temperature sensor built into the DIMM in both the Elpida and Kingston cases. Elpida makes a version with a temp sensor as well.
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marv777
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PostPosted: Tue Feb 05, 2013 10:08 pm    Post subject: RAM Reply with quote

philiparcario wrote:
apple uses;

samsung

hynix

micron /crucial


elpida

once in a while mushkin.

this is based on about 400 macs that I have upgraded ram in.
So what is your point?Mushkin is this a joke on your part?
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ez061111
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PostPosted: Tue Feb 05, 2013 10:55 pm    Post subject: Re: RAM Reply with quote

marv777 wrote:
So what is your point?Mushkin is this a joke on your part?

I'm guessing his point is that Apple uses various suppliers for RAM. You made an out of the blue comment that Apple uses Samsung and Phil pointed out all fo the suppliers he has come across. Why would he joke about Mushkin? I've seen it in a few of my machines, Samsung in several and Hynix in one or two.
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