48GB Memory Kit 12 x 4GB DDR3 10600R for Dell PowerEdge C6100 C6220 XS23-TY3 -$120

[Dajinn]

Additional data point: I offered $40 (+shipping) for a set of 6x4GB rdimms listed at $60. Surprisingly, it was accepted right off the bat.

Man, those guys have some good prices on memory right now, coupled with best offer.

 

[Boddy]

Additional data point: I offered $40 (+shipping) for a set of 6x4GB rdimms listed at $60. Surprisingly, it was accepted right off the bat.

Seems like sellers are willing to offload obsolete stock at discount prices at the moment, there are 8Gb & 16 Gb sticks hitting the market @ $5 per Gb. Hence they are willing to offload 4 Gb sticks at a discount.

Looks like sellers are offloading their inventory of C6100 parts now that there are few C6100 for sale on EBay.

 

[Dajinn]

there are actually loads of c6100s on ebay but they're all terribly priced imo and/or they're 96% all mostly data center editions which people who would be in the market for a c6100 just wouldn't be interested in, i would think.

 

[Chuckleb]

We are running into bad memory slots on many of our c6100 systems, trying to work around them. I think in the order of 12/~70 nodes...

 

[Boddy]

We are running into bad memory slots on many of our c6100 systems, trying to work around them. I think in the order of 12/~70 nodes...

Hi Chuckleb.
having ordered more ram to populate my C6100s
I'd be interested to know the outcome/cause?
Have you recently added more ram or they are existing sticks?

I'm no IT guru:

Is it important to install those 'blank spacers' in any empty memory slots:
for better airflow or prevent dust entering ram slot?

If I'm populating all my memory slots, running 12 3.5" hard drives, as well as 40Gb mezzanine NIC and PCI raid card in all my nodes: should I upgrade my PSU from dual 1100Watt to dual 1400 Watt?

Many thanks in advance.

 

[Boddy]

there are actually loads of c6100s on ebay but they're all terribly priced imo and/or they're 96% all mostly data center editions which people who would be in the market for a c6100 just wouldn't be interested in, i would think.

yea, last week there was only a few, now there are heaps. Looks like mainly 3 node units, low powered Xeons and AMD CPUs. Budget boxes. I don't understand why you would use 3 nodes when the unit is built for 4.

I guess some people prefer to drive Mini Minors rather than Mustangs.
Cheers

 

[Dajinn]

If I'm populating all my memory slots, running 12 3.5" hard drives, as well as 40Gb mezzanine NIC and PCI raid card in all my nodes: should I upgrade my PSU from dual 1100Watt to dual 1400 Watt?

Many thanks in advance.

I don't have experience with C6100 server power supplies but I would think that the wattage needed depends on the CPUs you are using in each node. If you use the 1100 watt units and populate every drive tray and every memory bank in each node and are using something like the 90W CPUs(X-series)you might have to upgrade otherwise you could run into a "system performance has been reduced" prompt during POST because of Dell bios/firmware "requiring" a PSU upgrade.

I say this because my R610 servers will absolutely not accept X5650 CPUs with the base 502W PSU, even if the there's no RAM installed or HDDs installed.

If the C6100 has no such firmware limitation I would see if the baseboard management controller on those have power consumption metrics you can check to view how much wattage each node is using and go from there. iDRAC is great for this but isn't available on the C6100 systems.

 

[Boddy]

I don't have experience with C6100 server power supplies but I would think that the wattage needed depends on the CPUs you are using in each node. If you use the 1100 watt units and populate every drive tray and every memory bank in each node and are using something like the 90W CPUs(X-series)you might have to upgrade otherwise you could run into a "system performance has been reduced" prompt during POST because of Dell bios/firmware "requiring" a PSU upgrade.

I say this because my R610 servers will absolutely not accept X5650 CPUs with the base 502W PSU, even if the there's no RAM installed or HDDs installed.

If the C6100 has no such firmware limitation I would see if the baseboard management controller on those have power consumption metrics you can check to view how much wattage each node is using and go from there. iDRAC is great for this but isn't available on the C6100 systems.

Thanks Dajinn for your valuable and insightful advice. Eight CPUs will make difference to power usage, particularly the 90 watt models. I'll be running the 60 watt L5639 or L5640s.

Nevertheless according to the Dell owners manual (page 59), the 1100 Watt PSU running is only recommended for running 3 or 4 nodes with 2 CPUs (not specified), 9 hard drives and nine memory modules. 1400 Watt PSU is good for 'full configuration' with running 3 nodes (no mention of expansion cards) and with 4 nodes 2 CPUs (not specified), 9 hard drives and nine memory modules.

As manufacturers can like to be generous with PSU requirements. I wonder what the real world experience is of users, especially with fully utilised systems with expansion cards?

 

[Chuckleb]

@Boddy, they were both existing systems and some systems I just bought so don't know the history of. I'll ask my Admins to so some counting.

 

[Dajinn]

I just ordered 3 sets of 48GB from these guys for 5 bucks a stick, however, their response time is slow. On the first kit I specified full Hynix /w heatspreaders and got a decent response and shipment notification same day, yesterday I placed an order for this RAM:

48GB 12x 4GB HP 500658 B21 500203 061 501534 001 PC3 10600R DL360 G6 G7 RAM | eBay

and asked if they could fill the entire 96GB of that order with Hynix RAM and if not to contact me shipping if they cannot. All I got was "we will see if that is possible".