Testing FX8350 with Prime95

[BklynSupra]

I ran Prime95 (small FFTs) for 24 hours. I haven't OC anything yet as I wanted to run this as a base reading. Ambient temperature in the room was 75-78* F. What do you think of these readings?

 

 

[Toddwjp]

not that bad

[harrynowl]

Got like 10c of headroom to play with for Ocing. Not terrible temps.

[MbV93]

Perfectly normal.

[Archangel1994]

51 degrees in prime95 is very good indeed after 24 hours. I suggest OC'ing anyway

[Enderman]

Got like 10c of headroom to play with for Ocing. Not terrible temps.

 

 

51 degrees in prime95 is very good indeed after 24 hours. I suggest OC'ing anyway

 

Ummmm no.

Socket temp is already at 63C, and it is not supposed to exceed 62 degrees.

[D3MON]

Ummmm no.

Socket temp is already at 63C, and it is not supposed to exceed 62 degrees.

yes but the cpu has a long way to go, most people are happy to run thier fx's upto 70 usually not exceeding this so hes got a long way to go which if he gets a decent cooler will not  be exceeded. plus id put money on his board putting in more voltage than needed so he could likely overclock without adding any voltage or heat increase.

[Faa]

yes but the cpu has a long way to go, most people are happy to run thier fx's upto 70 usually not exceeding this so hes got a long way to go which if he gets a decent cooler will not  be exceeded. plus id put money on his board putting in more voltage than needed so he could likely overclock without adding any voltage or heat increase.

That cpu temp 62 isn't the socket temp? It's the temp on top of the CPU if I'm not mistaken. Socket temp is usually 10° higher than the cores.

[harrynowl]

Ummmm no.

Socket temp is already at 63C, and it is not supposed to exceed 62 degrees.

Package (core) isn't supposed to exceed 62c. Socket temps are quite happy up to around 75c

 

That cpu temp 62 isn't the socket temp? It's the temp on top of the CPU if I'm not mistaken. Socket temp is usually 10° higher than the cores.

CPU temp on ASUS motherboards means socket from my experience with the m5a97 evo r2.0, and it is about 10c higher than the cores/cpu (package)

[D3MON]

That cpu temp 62 isn't the socket temp? It's the temp on top of the CPU if I'm not mistaken. Socket temp is usually 10° higher than the cores.

after a bit more research ^ is a bit more on the spot, max cpu temp is 65*c so say alot of other places (though 70*c under max load wont do nothing) they shut down at 90 and amd overdrive says max temp is 70 and ive been to 73*c before and it didnt throttle down or care in the slightest   :unsure: 

socket temp max is around 75*c.

if under prime you hit 70 id bet you'll never exceed 60 in most use cases and gaming.

[Faa]

Package (core) isn't supposed to exceed 62c. Socket temps are quite happy up to around 75c

 

CPU temp on ASUS motherboards means socket from my experience with the m5a97 evo r2.0, and it is about 10c higher than the cores/cpu (package)

So I assume the CPU temps (not socket temp) are lower than the cores?

[Razzaa]

With a FX chip HWmonitor shows the socket temp as CPU. It is safe up to 70c. Package is the core temps. Safe up to 62c. As you increase vcore you will find the socket temps get real hot and I suggest putting a fan on the back of the mobo or on the VRM.

Edit: I have had my core temps up around 70c briefly when I was getting 5ghz stable on my 6300.

[harrynowl]

So I assume the CPU temps (not socket temp) are lower than the cores?

Don't think AMD have temp sensors in each core, there is one on the package (51c max) and then the CPU temp read by hwmonitor is the socket (63c max)

 

max being what's read by the software 

[BklynSupra]

So when I start the OC process, where it says CPU should stay below 70C?

 

Edit:

I have two exhaust fans on the top of the case and two intake on the side panel.

CPU: AMD FX-8350 4.0GHz 8-Core Processor
CPU Cooler: Corsair H80i 77.0 CFM Liquid CPU Cooler (push pull setup with Corsair SP120)
Motherboard: Asus Sabertooth 990FX R2.0 ATX AM3+ Motherboard
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Samsung 840 EVO 120GB 2.5" Solid State Drive
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: MSI Radeon R9 280 3GB TWIN FROZR Video Card
Case: Corsair 200R ATX Mid Tower Case
Power Supply: Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply

Fan Controller: NZXT Sentry Mix 2 Fan Controller

[Razzaa]

So when I start the OC process, where it says CPU should stay below 70C?

Edit:

I have two exhaust fans on the top of the case and two intake on the side panel.

CPU: AMD FX-8350 4.0GHz 8-Core Processor

CPU Cooler: Corsair H80i 77.0 CFM Liquid CPU Cooler (push pull setup with Corsair SP120)

Motherboard: Asus Sabertooth 990FX R2.0 ATX AM3+ Motherboard

Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory

Storage: Samsung 840 EVO 120GB 2.5" Solid State Drive

Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive

Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive

Video Card: MSI Radeon R9 280 3GB TWIN FROZR Video Card

Case: Corsair 200R ATX Mid Tower Case

Power Supply: Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply

Fan Controller: NZXT Sentry Mix 2 Fan Controller

Yes keep the "CPU" reading under 70c. Keep the "Package" under 62c. You wont get that far with that AIO cooling it though. 4.6ghz to 4.8 is the sweet spot for that chip.

For reference, my 8350 runs 4.8ghz @ 1.45v but every chip is different and my AMD rig is under water. My socket temps hold me back because they are alot harder to keep cool at higher volts than the cores.

[Interfectorem]

Yes keep the "CPU" reading under 70c. Keep the "Package" under 62c. You wont get that far with that AIO cooling it though. 4.6ghz to 4.8 is the sweet spot for that chip.

For reference, my 8350 runs 4.8ghz @ 1.45v but every chip is different and my AMD rig is under water. My socket temps hold me back because they are alot harder to keep cool at higher volts than the cores.

But, at idle, my "Package" temps on HWMonitor are 12-16 C which my ambient is 27. Or does that reading get more accurate as you increase in temperature? I always go by the "CPU" reading which is always at around 30C idle.

[Razzaa]

But, at idle, my "Package" temps on HWMonitor are 12-16 C which my ambient is 27. Or does that reading get more accurate as you increase in temperature? I always go by the "CPU" reading which is always at around 30C idle.

Amd core temps do not get accurate untill the cpu is under load.

[-rascal-]

So when I start the OC process, where it says CPU should stay below 70C?

 

Edit:

I have two exhaust fans on the top of the case and two intake on the side panel.

CPU: AMD FX-8350 4.0GHz 8-Core Processor

CPU Cooler: Corsair H80i 77.0 CFM Liquid CPU Cooler (push pull setup with Corsair SP120)

Motherboard: Asus Sabertooth 990FX R2.0 ATX AM3+ Motherboard

Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory

Storage: Samsung 840 EVO 120GB 2.5" Solid State Drive

Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive

Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive

Video Card: MSI Radeon R9 280 3GB TWIN FROZR Video Card

Case: Corsair 200R ATX Mid Tower Case

Power Supply: Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply

Fan Controller: NZXT Sentry Mix 2 Fan Controller

 

Do you have any fans on the front of the 200R? What about the bottom?

Because the 200R is a smaller form factor case, and that the volume is much less versus a large ATX case, I would recommend that you install more fans to better circulate the air inside the system.

 

According to Corsair the 200R has the following fan mount locations

Front: (x2) 120mm

Top: (x2) 120 / 140mm

Rear: (x1) 120mm

Bottom: (x1) 120 / 140mm

Side: (x2) 120 / 140mm

 

Install a fan (or two) at the front as intake if you can. Use the stock fan(s) that came with the 200R if you must.

The bottom is optional IMO.

Play around with the different fan / cooling configurations.

 

 

Side: I was expecting the H80i to perform a lot better than that on a FX-8350 -- even with it at stock speeds. The last time a did any Prime95 on my FX-8350, the temperatures were similar to what you are getting -- this is with my FX-8350 @ 4.8GHz with 1.4V.

[BklynSupra]

Do you have any fans on the front of the 200R? What about the bottom?

Because the 200R is a smaller form factor case, and that the volume is much less versus a large ATX case, I would recommend that you install more fans to better circulate the air inside the system.

 

According to Corsair the 200R has the following fan mount locations

 

Install a fan (or two) at the front as intake if you can. Use the stock fan(s) that came with the 200R if you must.

The bottom is optional IMO.

Play around with the different fan / cooling configurations.

 

 

Side: I was expecting the H80i to perform a lot better than that on a FX-8350 -- even with it at stock speeds. The last time a did any Prime95 on my FX-8350, the temperatures were similar to what you are getting -- this is with my FX-8350 @ 4.8GHz with 1.4V.

I have a fan on the front and the bottom as intake. I will have to check if I can place another fan on the front.

 

I'm also thinking of changing the top fans to intake instead of exhaust. All that was coming out of the top was cold air. Should I do this?

[BklynSupra]

I added a second fan to the front and changed the direction of the top fans. Below are the results of running prime95 for an hour and ambient temp is 76F.