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Old 01-09-2006, 11:49 PM   #1
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Default Anybody have 4 GIGS or know how to use them?

Hi i recently bought 4 gigs of corsair xms ram and installed them into my new asus a8n32-sli delxue motherboard, to my surprise the bios "system information" screen reads :
MEMORY:
Installed size: 4 gigs
Usable size: 3 gigs

What!!!! how can i fix this, someone please let me know.

thanks.
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Old 01-09-2006, 11:55 PM   #2
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Default Re: Anybody have 4 GIGS or know how to use them?

r u sure ur mobo can hold that much ram??If theres 4 slots dosent meen it can hold 4 gigs. The max could be 3 gigs but im not sure on that. hope that helps
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Old 01-09-2006, 11:57 PM   #3
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Default Re: Anybody have 4 GIGS or know how to use them?

Many motherboards can hold that much. He could be right though, your motherboard can't handle this much RAM.
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Old 01-09-2006, 11:58 PM   #4
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Default Re: Anybody have 4 GIGS or know how to use them?

yeah im pretty sure, it says that on asus.com, it says that the chipset on the board can hold upto 16 gigs, but for some reason when you put them together, it cant hold more than three.
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Old 01-09-2006, 11:59 PM   #5
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Default Re: Anybody have 4 GIGS or know how to use them?

Windows OS perhaps?

Did you make sure you put it in correctly, you know..
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Old 01-10-2006, 12:03 AM   #6
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Default Re: Anybody have 4 GIGS or know how to use them?

well the bios wasnt recognizing that last gig, so the os has nothing to do with it at that point. maybe a bios update, but it would help hearing from someone who has 4 gigs in theire system.
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Old 01-10-2006, 12:13 AM   #7
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Default Re: Anybody have 4 GIGS or know how to use them?

Quote:
Originally Posted by Zaki
well the bios wasnt recognizing that last gig, so the os has nothing to do with it at that point. maybe a bios update, but it would help hearing from someone who has 4 gigs in theire system.
u could always get the new bios.
Wouldn't hurt to try.
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Old 01-10-2006, 12:57 AM   #8
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Default Re: Anybody have 4 GIGS or know how to use them?

I think the mobo doesn't support that much. But if it reconizes the RAM shouldn't it be usuable?
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Old 01-10-2006, 04:46 AM   #9
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Default Re: Anybody have 4 GIGS or know how to use them?

The specs
Asus A8N32-SLI's deluxe

CPU support Socket 939-based Athlon 64 and Sempron processors
North bridge NVIDIA nForce SPP 100
South bridge NVIDIA nForce4 SLI
Interconnect HyperTransport (8GB/sec)
Expansion slots 2 PCI Express x16
1 PCI Express x4
3 32-bit/33MHz
Memory 4 184-pin DIMM sockets


Maximum of 4GB of DDR266/333/400 SDRAM
(yes 4 gigs)

Storage I/O Floppy disk
2 channels ATA/133 with RAID 0, 1, 0+1, and 5 support
4 channels Serial ATA with RAID 0, 1, 0+1, and 5 support
2 channels Serial ATA with RAID 0, 1 support via Silicon Image 3132
Audio 8-channel AC'97 audio via nForce4 SLI and Realtek ALC850 codec
Ports 1 PS/2 keyboard
1 PS/2 mouse
1 Parallel port
4 USB 2.0 with headers for 6 more
1 RJ45 10/100/1000 via Marvell 88E8053
1 RJ45 10/100/1000 via nForce4 SLI

1 analog front out
1 analog bass/center out
1 analog surround out
1 analog rear out
1 analog line in
1 analog mic in
1 Coaxial digital S/PDIF output
1 TOS-Link digital S/PDIF output

Headers for 2 Firewire ports via Texas Instruments TSB43AB22A
Header for 1 game and 1 serial port
BIOS Phoenix AwardBIOS
Bus speeds HT: 200-400MHz in 1MHz increments
DRAM: 100, 133, 166, 183, 200, 216, 233, 250MHz
PCI-E: 100-200MHz in 1MHz increments
LDT: 1000, 800, 600, 400, 200MHz
SB-to-NB: 200-300MHz in 1MHz increments
Voltages CPU: auto, 1.0-1.5625V in 0.0025V increments
DDR: auto, 2.50-4.00V in 0.05V increments
HT: 1.2-1.3V in 0.1V increments
NB: default, 1.3V
SB: default, 1.6V
Monitoring Voltage, fan status, and temperature monitoring
Fan speed control CPU, Chassis, Power

First off How many sticks of ram do you have? is it 4x1gig or 2x2gig? try switching Ram modules around into other slots...If that doesn't work try changing the Ram timings in the Bios to "by Spd" though this shouldnt make any differnce

What i would suggest is booting to your os and running a diagnostic tools like CST Inc.'s DOS based DocMemory utility link: http://bucarotechelp.com/computers/98011841.asp

Run this see if it one ram stick has a problem with it, if everything seems fine then update bios as old Asus bios's can be faulty: Download update 1009 from here link:
http://dlsvr01.asus.com/pub/ASUS/mb/.../A8N321009.zip

Hope this helps :P
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Old 01-10-2006, 05:09 AM   #10
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Default Re: Anybody have 4 GIGS or know how to use them?

try a bios update if that doesnt work then theres not much else u can do
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