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39572
Alienware Aurora R1 With Installed Memory RAM): 24.0 GB memory (16.0 GB usable)
I have 6 sticks of Crucial 4GB DDR3l - 1600 UDIMM 1.35v CL 11 installed on a Alienware Aurora R1. The BIOS reports 16GB installed and Windows reports "Installed Memory (RAM): 24.0 GB memory (16.0 GB usable)" in the Computer Properties. I am running Windows 7 Enterprise with the latest BIOS update available for this machine (A11 10/28/2009). Do I have to change a BIOS setting for the PC to fully recognize the memory installed for Windows? I am using the Load Optimal BIOS defaults currently.
From Dell System Detect:
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Service Tag
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Express Service Code
<ADMIN NOTE: Express service code removed per privacy policy> |
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Computer Model
Aurora
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BIOS Vendor
Alienware
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BIOS Version
A11
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BIOS Date
10/28/2009
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OS Version
Microsoft Windows 7 Enterprise
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Processor
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Manufacturer
Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
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Clock Speed
2.7Ghz
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L2 Cache Size
1024
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Memory
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Available Memory
79.87 %
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Page File Size
32,748.1MB
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Available Page File
100.00 %
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Virtual Memory
32,748.1MB
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Available Virtual Memory
89.01 %
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DIMM0
4,096.0MB
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DIMM1
4,096.0MB
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DIMM2
4,096.0MB
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DIMM3
4,096.0MB
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DIMM4
4,096.0MB
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DIMM5
4,096.0MB
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Tesla1856
8 Wizard
8 Wizard
•
17K Posts
2
March 15th, 2016 23:00
Yes, BIOS should show correct memory (to have any chance of it working/showing properly in Windows).
Check Aurora-R1 Service Manual.
Slots 1 - 6 (all slots filled)
1333 MHz (or 1066 MHz) DDR3
Try forcing it slower. Try 1333 first.
From my notes:
An Aurora R1 (with i7-9xx processor and x58 chipset) supports Tri-Channel memory if done right. It will hold 2 banks of 3 DIMMs = 6 DIMMs total. Yes, they ALL should match VERY closely. On top of that, each bank (set of 3) must be COMPLETELY IDENTICAL. Memory should be purchased and installed in sets of 3.
Use CPU-ID CPUz and physically inspect.
1066 MHz and I333 MHz DDR3
Slots 1, 3, and 5 or slots 1 — 6
robertmgreene
2 Posts
1
March 18th, 2016 07:00
I powered down the computer, and re-seated all the memory chips, one by one. After powering on, I held the F2 key down to access the BIOS. The correct memory showed up.
Thanks for all the help.
Tesla1856
8 Wizard
8 Wizard
•
17K Posts
0
March 18th, 2016 11:00
It always nice when the "Reseat the DIMMs" repair works. [:)]
I think that means that (just one) of the many minor address contacts is not making good contact.
Good work. Yet another Aurora-R4 is still in the field.