970 pro 3. FX 8300 different versions.

According to supported cpu list the motherboard supports fx 8300 FD8300WMHKSB.
I have the option to buy FD8300WMHKBOX.
Will it have any problems.
It is the same cpu.
Thanks for the info.
Cheers,

PetrolHead wrote: I couldn't find anything on Google using FD8300WMHKSB, but I'm guessing FD8300WMHKBOX just means the CPU is boxed and the other is a tray CPU. There's no difference in the CPU itself, with the boxed version you just get a cooler and the warranty might be a bit longer. (Btw, the CPU support list I could find says FD8300WMW8KHK. This is a tray processor.) Please note that with this CPU you need to use a top-down blowing CPU cooler. The stock cooler is a top-down blowing cooler, but if you had thought about upgrading the cooler, you need to take this into account. The VRM section on the 970 Pro3 has no heatsink and isn't very strong to begin with, so you need to provide it with adequate cooling for it to be able to handle the FX-8300. Also, the overclocking headroom is zero to very little on this board.

That is the problem, 3 weeks ago i changed my pc cooler to spartan 3 pro HE1024 (https://www.silentiumpc.com/en/spartan-3-pro-he1024/) which is tower cooler.
I lowered my cpu temperature from 39 to 34 in idle, also it lowered the core temperatureto 32 degrees.
Isn't it really possible to to use tower cooler ? It says it supports up to 150 TPD and it is compatible with am3+. So what is the point of saying it is compatible with it.

PetrolHead wrote: Depending on what you use for measuring the temps, you might actually be talking about the socket and CPU temps. Also, if you're talking about the temps BIOS gives you, then those are not idle temps since BIOS stresses the CPU in the background (on purpose). Not by much, but enough to push the temps up a bit. Back on topic: The tower cooler is compatible with the CPU. It can handle the CPU's TDP and you can attach it to the socket and that's about all it can promise. The problem is your motherboard isn't designed to be used with tower coolers and some CPUs, so while the cooler is compatible with the CPU, it's not really compatible with the motherboard's design. If you want to continue using the tower cooler, you should probably provide the VRM section of the motherboard some extra cooling with another fan. Otherwise you risk shortening the lifetime of your motherboard or even total hardware failure. The VRM section is located between the CPU socket and the rear panel I/O and is probably most easily identified by a line of five gray cubes.  By the way, from the CPU support list you can also see that the TDP of the CPU is not the whole story. Your motherboard supports Phenom II CPUs up to 125 W TDP, but FX CPUs only up to 95W TDP. This is because the FX-line stresses the VRM differently and can take the components closer the their specified limits even though the CPU itself may output less heat.

I am using speed fan version 4.49 to check the temperatures.
Currently i am using firefox and watching youtube videos are temperatures are as follows
System 36
CPU 37
Core 34
SMIOVT4  37
SMIOVT5 37
SMIOVT6 37
HDD1 31
HDD2 36

Before i installed the tower cooler all temperatures was about 5 degrees higher or more, system and core temperatures was over 40 degrees, HDD's temperatures were over 40 degrees.
So core temperatures are lower then i had.
This requirements is kinda stupid since most of aftermarket coolers are tower based on top of that since i installed the cooler the noise was reduced drastically, so i am very happy that i bought it.

PetrolHead wrote: Depending on what you use for measuring the temps, you might actually be talking about the socket and CPU temps. Also, if you're talking about the temps BIOS gives you, then those are not idle temps since BIOS stresses the CPU in the background (on purpose). Not by much, but enough to push the temps up a bit. Back on topic: The tower cooler is compatible with the CPU. It can handle the CPU's TDP and you can attach it to the socket and that's about all it can promise. The problem is your motherboard isn't designed to be used with tower coolers and some CPUs, so while the cooler is compatible with the CPU, it's not really compatible with the motherboard's design. If you want to continue using the tower cooler, you should probably provide the VRM section of the motherboard some extra cooling with another fan. Otherwise you risk shortening the lifetime of your motherboard or even total hardware failure. The VRM section is located between the CPU socket and the rear panel I/O and is probably most easily identified by a line of five gray cubes.  By the way, from the CPU support list you can also see that the TDP of the CPU is not the whole story. Your motherboard supports Phenom II CPUs up to 125 W TDP, but FX CPUs only up to 95W TDP. This is because the FX-line stresses the VRM differently and can take the components closer the their specified limits even though the CPU itself may output less heat.

PetrolHead, thank you for trying to explain this situation to SeverusV, I hope he understands your (second) explanation. You may be scaring him with the CPU cooler not being compatible with the mother board design statement, although that is correct given the circumstances.

As you know, the general situation with many lower priced AMD AM3+ boards is the CPU VRM section (SeverusV, that means the parts that provide power to the CPU, VRM means Voltage Regulator Module) needs extra cooling when used with some of the FX-8000 series processors.

Also, these VRM sections may not be designed and built to the level required to provide the amount of power that some of the FX-8000 series processors use, on a long term basis, if the user does not provide adequate cooling to the VRM section. Add over clocking to this situation, and things only get worse.

The 970 Pro3 for example, has a 4 + 1 Phase VRM design, with no heat sink on the VRM power chips. In general, a better and stronger VRM design will have more phases and use a heat sink on the VRM power chips.

My ASRock Z170 board has a 12 phase VRM design, with two heat sinks for the VRM power chips. Even when over clocked, Skylake processors will not need as much power as some FX-8000 will need when not over clocked. This Z170 board's price is three times that of the 970 Pro3, so it should be built better, and it is.

A "top-down blowing" style CPU cooler as a side affect will also cool the VRM section on a board, since it pushes air down and across the board. A tower type CPU cooler does not push air down and across the mother board, so no air is circulated across the board and VRM section. That is the problem.

It is possible to provide extra cooling to the VRM section on the board, but that depends on the PC case being used, the number and location of fans in the PC case, and the owner of the PC making sure the mother board is being cooled correctly.

When I put an AMD FX-9590 in my ASRock Fatal1ty 970 Performance/3.1 board, that has an 8 + 2 phase VRM section with a heat sink, I mounted a fan to blow air across the VRM heatsink. I did that because even with an 8 + 2 phase VRM (which is not as strong as possible), when used with a 9590, the VRM section needed all the cooling it could get. It worked out fine, but some AMD enthusiasts question if an 8 + 2 phase VRM is even enough for a 9590. I cannot say that they are wrong for long term use, and if over clocked, I agree.


Edited by parsec - 22 Aug 2016 at 10:26pm

parsec wrote: PetrolHead wrote: Depending on what you use for measuring the temps, you might actually be talking about the socket and CPU temps. Also, if you're talking about the temps BIOS gives you, then those are not idle temps since BIOS stresses the CPU in the background (on purpose). Not by much, but enough to push the temps up a bit. Back on topic: The tower cooler is compatible with the CPU. It can handle the CPU's TDP and you can attach it to the socket and that's about all it can promise. The problem is your motherboard isn't designed to be used with tower coolers and some CPUs, so while the cooler is compatible with the CPU, it's not really compatible with the motherboard's design. If you want to continue using the tower cooler, you should probably provide the VRM section of the motherboard some extra cooling with another fan. Otherwise you risk shortening the lifetime of your motherboard or even total hardware failure. The VRM section is located between the CPU socket and the rear panel I/O and is probably most easily identified by a line of five gray cubes.  By the way, from the CPU support list you can also see that the TDP of the CPU is not the whole story. Your motherboard supports Phenom II CPUs up to 125 W TDP, but FX CPUs only up to 95W TDP. This is because the FX-line stresses the VRM differently and can take the components closer the their specified limits even though the CPU itself may output less heat. PetrolHead, thank you for trying to explain this situation to SeverusV, I hope he understands your (second) explanation. You may be scaring him with the CPU cooler not being compatible with the mother board design statement, although that is correct given the circumstances. As you know, the general situation with many lower priced AMD AM3+ boards is the CPU VRM section (SeverusV, that means the parts that provide power to the CPU, VRM means Voltage Regulator Module) needs extra cooling when used with some of the FX-8000 series processors. Also, these VRM sections may not be designed and built to the level required to provide the amount of power that some of the FX-8000 series processors use, on a long term basis, if the user does not provide adequate cooling to the VRM section. Add over clocking to this situation, and things only get worse. The 970 Pro3 for example, has a 4 + 1 Phase VRM design, with no heat sink on the VRM power chips. In general, a better and stronger VRM design will have more phases and use a heat sink on the VRM power chips. My ASRock Z170 board has a 12 phase VRM design, with two heat sinks for the VRM power chips. Even when over clocked, Skylake processors will not need as much power as some FX-8000 will need when not over clocked. This Z170 board's price is three times that of the 970 Pro3, so it should be built better, and it is. A "top-down blowing" style CPU cooler as a side affect will also cool the VRM section on a board, since it pushes air down and across the board. A tower type CPU cooler does not push air down and across the mother board, so no air is circulated across the board and VRM section. That is the problem. It is possible to provide extra cooling to the VRM section on the board, but that depends on the PC case being used, the number and location of fans in the PC case, and the owner of the PC making sure the mother board is being cooled correctly. When I put an AMD FX-9590 in my ASRock Fatal1ty 970 Performance/3.1 board, that has an 8 + 2 phase VRM section with a heat sink, I mounted a fan to blow air across the VRM heatsink. I did that because even with an 8 + 2 phase VRM (which is not as strong as possible), when used with a 9590, the VRM section needed all the cooling it could get. It worked out fine, but some AMD enthusiasts question if an 8 + 2 phase VRM is even enough for a 9590. I cannot say that they are wrong for long term use, and if over clocked, I agree.

I am not going to OC my cpu.
So how can i check the temperatures of my vrm section then ?
I downloaded hwinfo and got following temperatures for the motherboard.
Motherboard 36
CPU 36
Systin1 36
Systin2 36
Systin3 36
CPU(PECI) 40
If there is a program that can show it please let me know, if there isn't could you advise on any cooler that help me, thanks.