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ASUSP5W64 WS PRO "Wall Street Quartet" Won't POST with more than a single DDR2 Dimm

Last response: in Motherboards
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September 7, 2013 6:54:58 PM

Very technical issues regarding this motherboard and the CPUs it supports.

Requirements:
I need this machine to run an Intel Core2 Quad Q9550 with 8gb Ram. What have I missed/forgotten?

I have the fortunate ability to try several CPUs with this board, So here is some interesting reading: -

Bios battery was renewed on 6 Sept 2013.

Operational Configurations:
Bios revision: 1201/1101/0701
+ Xeon X3210 2.13Ghz /1066 fsb Quad OR Core2 Duo 2,4Ghz /1066 fsb
+ Thermaltake Bigwater 780e liquid cooling (with Zalman gold blocks)
+ 4x 2Gb Super Talent PC6400/800Mhz DDR2
+ 2x Dual port nVidia 9500GT PCIe 1Gb DDRx
+ Sapphire Radeon ATI X800 GTO 256mb DDR3
+ Windows 7 SP1
+ Kingston 128Gb SSD
+ 2x IDE DVD drives

Then we change the "supported cpu" to:
Bios revision: 1201/1101
+ Core2 Quad Q9550 12m/2.4Ghz/1333 fsb
+ Thermaltake Bigwater 780e liquid cooling (with Zalman gold blocks)
+ 1x 2Gb Super Talent PC6400/800Mhz DDR2 (any slot, each DIMM)
+ 2x Dual port nVidia 9500GT PCIe 1Gb DDRx
+ Sapphire Radeon ATI X800 GTO 256mb DDR3
+ Windows 7 SP1
+ Kingston 128Gb SSD
+ 2x IDE DVD drives

And ADD RAM when post or even boot fails completely: -

Non Operational Configurations:
Bios revision: 1201/1101/0701
+ Core2 Quad Q9550 12m/2.4Ghz/1333 fsb
+ Thermaltake Bigwater 780e liquid cooling (with Zalman gold blocks)
+ 2/3/4x 2Gb Super Talent PC6400/800Mhz DDR2
+ 2x Dual port nVidia 9500GT PCIe 1Gb DDRx
+ Sapphire Radeon ATI X800 GTO 256mb DDR3
+ Windows 7 SP1
+ Kingston 128Gb SSD
+ 2x IDE DVD drives

Failure description:
Bios POST success to RAM check then hangs.

Remedies tried and failed:
Boot board without CPU for more than 25 sec.
Boot with 800W Corsair PSU/Antec 350W PSU
Removed all peripheral devices not essential to boot
Save some money for a better system or components.
Asking Asus for assistance.

Notes:
Make sure that you read all the above when replying as I have been doing tech support for PCs since 1996, built over 1000 different NEW computers for customers ranging from individuals to Microsoft Training and Certification Centres and multi-national companies around the world. I am familiar with most issues of the stupid type either through experience or training. Sometimes I forget a minor issue...

The computer works fine with the older Xeon and Core2 Duo. Documentation says it supports Core2 Quad/C2x4 (After bios update above 0701), however I suspect that it is limited to the lower graded CPUs as both the Intel Q9550s I have both fail in exactly the same fashion after haviong tried nearly every bios revision 1101 and after. The only thing I need to change is the CPU to a Xeon or C2x2 to get it working again.

On c2x4 POST failure, I cannot use the keyboard. Display freezes at mem check point. Reset switch is only option to reboot. Power switch takes few seconds to power down.

System is not overclocked. All BIOS settings are factory default. (except CPU FAN option- there isnt a fan installed and the error message really annoys me. Core temp maintains constant CPU temp range up to 42C MAX Min 32C.

Cannot disable multi-core operation in bios after 0701 rev.

I have read nearly everything available on the web regarding this type of ASUS problem and the solutions, most were not resolved. Many missed a simple bios update issue / CPU incompatability.

I have seen videos on youtube which show this mobo working with lower grade Core2 Quads And I used the identical settings as they did (mostly on Auto options)

Hardware available to USE in diagnosis:
Intel Xeon X3210 Quad /8M L2/1066 fsb which works fine
Intel Core2 Duo /1066FSB which works fine
2x Intel Core2 Quad Q9550

Removal of anything else is a waste of resources and counter to what client requires. Money cannot be spent on this system. Some of the CPUs may be sold to raise money to replace with lower graded C2x4 CPUs.

Any suggestions? Rev 1201 is the newest BIOS update from Asus. The board was brand new and sealed (Aug 2013) from when the client purchased it in 2006. Warranty long expired. No returns to USA from UK.

I feel like packing this machine up and sending it back to the client and telling them I'm too stupid to be their senior TechSupp and that I should just retire instead. An amazing piece of kit with a 6 monitor array and external liquid cooling and wireless everything. Weighs a ton. Shame to throw this opportunity away...
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a c 113 à CPUs
September 12, 2013 11:26:11 AM

Hi, I'm not that technical, so you can ignore my post. However, some thoughts:
-according to ASUS, the CPU is supported starting with the 0905 BIOS version;
-after replacing the CPU it would be good to clear the CMOS;
-again according to ASUS (memory specs for the board): 4 x DIMM, Max. 8 GB, DDR2 667/533 ECC,Non-ECC,Un-buffered Memory Dual Channel memory architecture Native DDR2 800 Support
So, although DDR2 800 advertised, I would try though testing the Q9550 with lower freq memory (667 or 533). Just for the sake of it. After all, it might be a BIOS issue.
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