Added more RAM, Graphics driver keeps crashing

rock4ever

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Oct 24, 2013
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Hello

I've added more RAM to my system. I believe the RAM to be identical or close to identical to what was in the PC originally. Original RAM was likely purchased in 2009. The graphics driver problem did not occur before installing the new RAM.

After installing the RAM the graphics driver keeps crashing.

BASIC SPECS

CPU- AMD Phenom II X4 945
Mainboard- ASUS M4A79XTD EVO
Graphics- Radeon HD 4850, DriverVersion = 8.970.100.7000
Windows Version- Microsoft Windows 7 (6.1) Home Premium Edition 64-bit Service Pack 1 (Build 7601)
DirectX Version- 11.0

Memory- I ran an application called cpu-z and here are the results for the memory. Original memory is DIMMs #1, #2. New memory is DIMMs #3, #4. I notice differences in the results but do not understand what it means. The number F3-12800CL9D-4GBNQ (I assumed this to be the model # when I bought it) is located on the stickers of all 4 units. What is the best way to fix this?

DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-12800H (800 MHz)
Part number F3-12800CL9-2GBNQ
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 1.2
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 7.0-7-7-22-29 @ 622 MHz
JEDEC #2 8.0-8-8-25-33 @ 711 MHz
JEDEC #3 9.0-9-9-28-37 @ 800 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.500 Volts
Min Cycle time 1.250 ns (800 MHz)
Max CL 9.0
Min tRP 10.88 ns
Min tRCD 10.88 ns
Min tWR 15.00 ns
Min tRAS 29.63 ns
Min tRC 40.88 ns
Min tRFC 160.00 ns
Min tRTP 7.50 ns
Min tRRD 6.00 ns
Command Rate 2T
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 9.0-9-9-25-34-2T @ 827 MHz (1.500 Volts)

DIMM # 2
SMBus address 0x51
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-12800H (800 MHz)
Part number F3-12800CL9-2GBNQ
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 1.2
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 7.0-7-7-22-29 @ 622 MHz
JEDEC #2 8.0-8-8-25-33 @ 711 MHz
JEDEC #3 9.0-9-9-28-37 @ 800 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.500 Volts
Min Cycle time 1.250 ns (800 MHz)
Max CL 9.0
Min tRP 10.88 ns
Min tRCD 10.88 ns
Min tWR 15.00 ns
Min tRAS 29.63 ns
Min tRC 40.88 ns
Min tRFC 160.00 ns
Min tRTP 7.50 ns
Min tRRD 6.00 ns
Command Rate 2T
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 9.0-9-9-25-34-2T @ 827 MHz (1.500 Volts)

DIMM # 3
SMBus address 0x52
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-12800CL9-2GBNQ
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-17-23 @ 457 MHz
JEDEC #2 7.0-7-7-20-27 @ 533 MHz
JEDEC #3 8.0-8-8-22-31 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz

DIMM # 4
SMBus address 0x53
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-12800CL9-2GBNQ
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-17-23 @ 457 MHz
JEDEC #2 7.0-7-7-20-27 @ 533 MHz
JEDEC #3 8.0-8-8-22-31 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
 

Tradesman1

Legenda in Aeternum
All being provided above is nothing more than information, has nothing to do with what they are running at....,and doubt your mobo has XMP as it's an AMD rig..... try manually setting the freq to 1333 the base timings to 9-9-9-27, CR (Command Rate/Timing) to 2T or 2N, DRAM voltage to 1.55 and CPU/NB voltage to 1.18 and give it a try
 

rock4ever

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Oct 24, 2013
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18,510


I figured out how to do everything but set the bast timings. I found an area where I could change some settings to values like 9CK etc. Is this the right place? The 3rd value could only be increased to 7CK

Also, is there any risk in upping the frequency to 1600?
 

Tradesman1

Legenda in Aeternum
Should be the 4 primary timings together, and are prob currently similar to what I mentioned, if you can't find them try just setting the freq to 1333, leave the rest on Auto, then check the CR and voltages I mentioned...then let me know, if need be I'll dig out a manual and find it for you
 

rock4ever

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Oct 24, 2013
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18,510
I altered the settings as above, with minor deviations to the cpu/nb voltage to 1.175 or 1.185 i cant remember. There was no option for 1.18. It was good for a few days but today again my graphics driver crashed again and later a BSOD occured(I was getting graphics crashes and BSODs much more frequently before-but after installing the new memory)