Asus will only boot with 4gb of ram not 8gb
- Thread starter jim571
- Start date
Yes sorry left info out.
Windows Vista Ultimate (x64) Service Pack 2 (build 6002)
Board: ASUSTeK Computer INC. P5N-D 1.XX
Bus Clock: 333 megahertz
BIOS: Phoenix Technologies, LTD ASUS P5N-D ACPI BIOS Revision 0801 08/01/2008
094 Megabytes Usable Installed Memory
Slot 'DIMM_A1' is Empty
Slot 'DIMM_A2' is Empty
Slot 'DIMM_B1' has 2048 MB
Slot 'DIMM_B2' has 2048 MB
Windows Vista Ultimate (x64) Service Pack 2 (build 6002)
Board: ASUSTeK Computer INC. P5N-D 1.XX
Bus Clock: 333 megahertz
BIOS: Phoenix Technologies, LTD ASUS P5N-D ACPI BIOS Revision 0801 08/01/2008
094 Megabytes Usable Installed Memory
Slot 'DIMM_A1' is Empty
Slot 'DIMM_A2' is Empty
Slot 'DIMM_B1' has 2048 MB
Slot 'DIMM_B2' has 2048 MB
Could be a few things. You specifically mention verifying all dimms are working so ill skip suggesting testing those.
Pull the ram up in google with its serials/model/ect and see if it its Single, Dual, or Quad ranked.
Your system without going into detail has 8 ranks to work with generally. So if you have 4 dual ranks you're fine. If you have 4 quad ranks well that's 12 which is over budget.
You mention its a 4x2 setup. Most 2g sticks are dual rank except some very cheap ones. So might also just be the slots are bad. Have you tried the second two slots alone to verify they work?
Last thing is the memory, some vendors and even some lines within the same vendor do not like working together and there isn't much you can do about it. Same goes for the motherboard, however sometimes there are bios updates that will expand compatibility so you may wish to try updating your bios as well.
@NukaB
Windows has nothing to do with this, the system isn't even posting.
Pull the ram up in google with its serials/model/ect and see if it its Single, Dual, or Quad ranked.
Your system without going into detail has 8 ranks to work with generally. So if you have 4 dual ranks you're fine. If you have 4 quad ranks well that's 12 which is over budget.
You mention its a 4x2 setup. Most 2g sticks are dual rank except some very cheap ones. So might also just be the slots are bad. Have you tried the second two slots alone to verify they work?
Last thing is the memory, some vendors and even some lines within the same vendor do not like working together and there isn't much you can do about it. Same goes for the motherboard, however sometimes there are bios updates that will expand compatibility so you may wish to try updating your bios as well.
@NukaB
Windows has nothing to do with this, the system isn't even posting.
- Oct 30, 2004
- 32,255
- 14
- 99,960
It will not boot on A2 and B2..It will boot on B1 and A1 bud just shows 2gb out of 4gb...It will boot with both sticks in the "B" slots and the one in A1..This really seems like the 2 A slots are defective.Any other ideas...Whats a good replacement Motherboard do you think?
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