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Hakemon

FX-8320 1866MHz vs 1600MHz MC

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Posted · Original PosterOP

I'm noticing an oddity with my freebie 8320 (in the sig).  It's Kingston hyperX fury, CL10 8GB modules.  I originally only had 2, now I have 4.  The memory claims to be 1866MHz, and sure enough each stick works as such, including 2 at a time.  But when I install 4, I can't post at 1866MHz and have to downclock to 1600MHz.

 

I remember reading that the FX series can't actually push 1866 when 4 sticks are populated?  I guess this is true based on my findings, that it cannot work at the advertised 1866MHz speed when all 4 sticks are populated.  The BIOS wants to actually clock them at 1333MHz when 4 are installed (and 1600MHz when 2 are installed).

 

Before anyone chastises me for using an FX, please understand the CPU was free, and I can't complain about free.  I cannot afford a "new" machine, so I always get second hand.  Besides, it's faster than my last computer which was a Core 2 based machine.  I have no complaints, because it still plays the games I want to play, despite not being much of a gamer anymore.


CPU: AMD FX-8320 @ 4GHz, 4.3GHz Turbo                    RAM: HyperX Fury 32GB DDR3

GPU: Nvidia GTX 1050 Ti 4GB Mouse: Lenovo Legion M500 Keyboard: IBM XT Model F

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Yep. That's pretty much how it works.... on DDR DDR2 DDR3 and DDR4 and likely DDR5 as well. Populate 4 DIMMs and increased memory capacity is harder to run higher frequencies. Just how it is..... shrugs.


 

Lid-less PGA 2700x / ROG B450-I Gaming / Corsair 3000mhz SK Hynix / RTX 2060 / EVGA 750w

Lid-less 8700K / Maximus X Hero / G.Skill 4266mhz B-Die / RTX 2060 / Antec 1000w CP series

Ryzen Athlon 220ge with Vega Graphics / Asus Prime B450M-A / Corsair LED 3000mhz / 550w Antec Office PC.

DFI LanParty UT / Opteron 148 / DDR Corsair XMS Expert / X1800 XT 256MB Bios modded

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I can't help with your issue, but have no shame about your FX. I had an FX-8320 as well and it served me well until Black Friday when I upgraded, and it's still going strong for my SO and all the games she enjoys playing.


Gaming Build:

CPU: Ryzen 7 3800x   |  GPU: Asus ROG STRIX 2080 SUPER Advanced (2115Mhz Core | 9251Mhz Memory) |  Motherboard: Asus X570 TUF GAMING-PLUS  |  RAM: G.Skill Ripjaws DDR4 3600MHz 16GB  |  PSU: Corsair RM850x  |  Storage: 1TB ADATA XPG SX8200 Pro, 250GB Samsung 840 Evo, 500GB Samsung 840 Evo  |  Cooler: CM ML240R  |  Case: Lian Li PC-O11

 

Peripherals:

Monitor: LG 34GK950F  |  Sound: Sennheiser HD 598  |  Mic: Blue Yeti  |  Keyboard: Corsair K95 RGB Platinum  |  Mouse: Logitech G502

 

Laptop:

Asus ROG Zephryus G15

Ryzen 7 4800HS, GTX1660Ti, 16GB DDR4 3200Mhz, 512GB nVME, 144hz

 

 

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Posted · Original PosterOP
2 minutes ago, ShrimpBrime said:

Yep. That's pretty much how it works.... on DDR DDR2 DDR3 and DDR4 and likely DDR5 as well. Populate 4 DIMMs and increased memory capacity is harder to run higher frequencies. Just how it is..... shrugs.

I guess this is the first DDR system I've had that behaves this way.  Then again my last system was FB-ECC DDR2, so perhaps it was just different with that.  (8 sticks of 4GB each).  Good to know this is pretty much the reason though, at least it works for me.  I needed more RAM for video editing, the 200MHz DRAM drop isn't likely going to be noticeable at all.


CPU: AMD FX-8320 @ 4GHz, 4.3GHz Turbo                    RAM: HyperX Fury 32GB DDR3

GPU: Nvidia GTX 1050 Ti 4GB Mouse: Lenovo Legion M500 Keyboard: IBM XT Model F

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Posted · Original PosterOP
3 minutes ago, Statik said:

I can't help with your issue, but have no shame about your FX. I had an FX-8320 as well and it served me well until Black Friday when I upgraded, and it's still going strong for my SO and all the games she enjoys playing.

I generally don't, lol, but some people seem to associate all FX's with Bulldozer.  Piledriver was a lot better than Bulldozer, but I guess those who haven't used a Piledriver don't know that.


CPU: AMD FX-8320 @ 4GHz, 4.3GHz Turbo                    RAM: HyperX Fury 32GB DDR3

GPU: Nvidia GTX 1050 Ti 4GB Mouse: Lenovo Legion M500 Keyboard: IBM XT Model F

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1 minute ago, Hakemon said:

I guess this is the first DDR system I've had that behaves this way.  Then again my last system was FB-ECC DDR2, so perhaps it was just different with that.  (8 sticks of 4GB each).  Good to know this is pretty much the reason though, at least it works for me.  I needed more RAM for video editing, the 200MHz DRAM drop isn't likely going to be noticeable at all.

For work the extra memory and lower frequency is better for redundancy. 

If just gaming (from that era of time) 2x4GB modules was plenty for most systems. Much easier to hit higher frequencies that way.

 


 

Lid-less PGA 2700x / ROG B450-I Gaming / Corsair 3000mhz SK Hynix / RTX 2060 / EVGA 750w

Lid-less 8700K / Maximus X Hero / G.Skill 4266mhz B-Die / RTX 2060 / Antec 1000w CP series

Ryzen Athlon 220ge with Vega Graphics / Asus Prime B450M-A / Corsair LED 3000mhz / 550w Antec Office PC.

DFI LanParty UT / Opteron 148 / DDR Corsair XMS Expert / X1800 XT 256MB Bios modded

Asus CrossHair Formula IV / Phenom II x4 B97 / Dominator GT 2000mhz. / EVGA GTX 770

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