Question I can't get the RAM to run at the expected speed on an old motherboard ?

[steveis2]

Hi

My ASUS M5A78L-M/USB3 is an AM3+ motherboard that is obviously very old. I have 4 x 4GB identical ram sticks that can run at 1866Mhz but despite the fact that there is a setting in the BIOS to choose that speed, having set it to 1866 the meory runs at 1600Mhz according to task manager. CPU-Z shows, looking at a Ram stick, in the timmings table a frequency of 933MHZ and indicates an XMP of 1866. (see image)
So I'm wondering what is the actual speed of the ram on the PC considering the age of the motherboard and, I think, XMP wasn't around when it was manufactured in about 2012. It should be able to run at
1866Mhz but is it?

Regards Steve

 

[helpstar]

check the memory tab in cpu-z

 

[rgd1101]

full system spec?

 

[steveis2]

full system spec?

Processor
Processor: AMD FX-6300 3500 MHz
CPU Clock: 3515.4 MHz (17.5 x 200.9 MHz)
Level 1 Cache: 6 x 16 kB + 6 x 64 kB (data+instr.)
Level 2 Cache: 6 x 2 MB
Level 3 Cache: 1 x 8 MB
Motherboard
Motherboard Vendor: Asustek Computer Inc.
Board Model: ASUSTeK Computer INC. M5A78L-M/USB3
BIOS Version: American Megatrends Inc. 1503
BIOS Version: AMI BIOS 08.00.15
Chipset Name: AMD 790GX/780G/V/E/760G (RS780)
Northbridge Vendor: Advanced Micro Devices (AMD)
Northbridge: 790GX/780G/V/E/760G (RS780) Host Bridge
Southbridge Vendor: Advanced Micro Devices, Inc. (AMD/ATI)
Southbridge: SB7x0/SB8x0/SB9x0 LPC host controller
DMI/SMBIOS Version: 2.5
Memory
Memory Size: 11.98 GB
System Memory: 12272 MB
Memory Module: 4 GB DDR3-1866 (PC3-10600) SDRAM (Corsair)
Memory Module: 4 GB DDR3-1866 (PC3-10600) SDRAM (Corsair)
Memory Module: 4 GB DDR3-1866 (PC3-10600) SDRAM (Corsair)
Memory Module: 4 GB DDR3-1866 (PC3-10600) SDRAM (Corsair)
Storage
Disk Model: Patriot P220 512GB
Disk Size: 488386 MB (476.94 GB)

 

[steveis2]

check the memory tab in cpu-z

Hi,
It's as per the image. So I suppose theoretically it 2x that 937.5. But not according to task manager.

steve

 

[SkyNetRising]

It's as per the image. So I suppose theoretically it 2x that 937.5. But not according to task manager.

Task Manager is not a reliable way to check ram frequency.
You can safely ignore reported ram frequency in Task Manager.

CPU-Z is reliable though.
So everything is fine. 937.5 x2 = 1875mhz

 

[helpstar]

what value does the Taskmanager tell you? which windows version?
but still, all fine though. about 1866MHz