"Hybrid SLI"

[nvisible75]

ASUS M4N78 Pro mainboard
Nvidia “Hybrid SLI”, (Geforce 8300 +XFX 8500gt Video )
Athlon II 250 Processor
4G -OCZ 800 Mhz “SLI Ready” DDR2 (ocz2n800sr4gk)
Windows 7 “Ultimate” 64 bit
2- identical Hitachi 320 G sata drives; JBOD
Soundblaster Extreme XiFi-Audigy Soundcard
Antec “Earth watt” (80 plus) 650w power supply

Hi:

In Novermber, I ordered and paid for the above kit to spin Vista 64 “Ultimate”.
I am having difficulty getting this power ‘stingy’ system, built to ‘Nvidia requirements, to support 4G of ram.
Repeat, it develops assorted “Blue screens” (BSODs) with more than 1 stick of 800Mhz DDR2.
The system will quite happly ‘do’, (1)- 2G stick of, “OCZ SLI ready ddr2 6400 800Mhz”.
I have tried to download every relevant driver available (ASUS, NVIDIA, AMD) to obtain a stable hybid video, hybrid power rig . Have seen other problems on the forums and some successful builds, too.
I have come to the conclusion: that maybe, the low–end AMD processor has issues doing that much stuff; addressing and supporting 4g of ram at its suggested 3.0Ghz, clock.
Upgraded to Windows 7,” Ultimate” and the ASUS-15.45 driver kit and the ASUS BIOS- version # 1102.

CMOS settings follow:
Set the ram timing to mfg specs (5-4-4-15)
Cpu ratio-11
Fsb freq.-250 Mhz
Pcie freq- 101 Mhz
Dram 833 Mhz
Ht link-2000Mhz
Nb- 1.4Mhz

Dram voltage- 2.1 v
Cpu Voltage -1.275

Economics require that I not settle for less or, go out and tilt a few more tech support windmills. Hoped to get he forum’s best advice or assistance. T’would be greatly appreciated.

Thanks in advance. Best regards for the New Year!

 

[MagicPants]

You might just have a bad stick of ram, did you try both in the 2 gig configuration? Also it sounds like you're messing around with the overclocking features of your motherboard, I'd try setting as much to default as possible.

The ram should default to safer settings.

 

[nvisible75]

You might just have a bad stick of ram, did you try both in the 2 gig configuration? Also it sounds like you're messing around with the overclocking features of your motherboard, I'd try setting as much to default as possible.

The ram should default to safer settings.

Thanks.
Both sticks of RAM work and the CMOS only allows either full automatic or user discrimination.

It was instructive to use boththe,'auto' settings and the user defined settings; either way, it will not,'do' 4G of RAM.

According to OCZ, these are over clockable and I will notch it down to the 800Mhz threshold.

 

[dndhatcher]

You may need to notch up on the voltage to overclock the RAM, though 2.1 seems pretty high to begin with. Try backing off the timings to see if that adds stability.


I just saw this note about your motherboard. Perhaps it is relevant.

*Due to AMD CPU limitation, DDR2 1066 is supported by AM2+/AM3 CPU for one DIMM per channel only.

Maybe you have to run one stick in each channel (one in yellow, one in black)?

 

[nvisible75]

Thanks.

I have tried both sticks in A1 and B1; no good.

I have tried both sticks in A1 and A2; no good.

That is not a bad idea; I might for grins, put a stick in A2 and B2.

I posted the ASUS site and copied their tech support.

I have learned not to pull any more hairs out over something like this.

I mean, when you have only five hairs left on your head, one has to

discern (plus the hairs are harder to find).

http://img.tomshardware.com/forum/uk/icones/smilies/bounce.gif

 

[nvisible75]

Thanks for the input. Helped, alot.

A shame; I sent the GeForce 8300 board back.

What a great concept, "Hybrid SLI - Hybrid Power"; they say the Hyb-SLI design this is the logic for nvidia's, laptop video and power systems.

It would even make a great slogan...er uhmm, campaign slogan
Apparently, ASUS a has bad hair days, too.

Now how do I get these smilies to migrate to this message?

ATB