F5F Stay Refreshed Power Users Overclocking Short clarification on the Swiftech MCP655-B and GPM

Short clarification on the Swiftech MCP655-B and GPM

Short clarification on the Swiftech MCP655-B and GPM

N
niuhayan
Member
165
11-25-2023, 02:09 PM
#1
Hello,
I wanted to make sure I understand the details about this pump. I recently purchased the -B version and am reviewing the specifications to upgrade my build. I know it's not the PWM model—the Swiftech site mentions it produces around 317 GPH, which is roughly 5.2GPM. Does that mean the pump delivers close to 5GPM when operating as a PWM unit?

I also checked the watercooling sticky and the "What can my pump handle" thread on overclock.com. It says I should expect about 2.99 head pressure, and at 1GPM the MCP655-B can manage around 3.25 PSI. Since I don’t have the PWM model, I’m assuming this will be sufficient for a continuous flow of about 5 GPM.

Thank you for taking the time to explain this clearly.
Best regards,
N
niuhayan
11-25-2023, 02:09 PM #1

Hello,
I wanted to make sure I understand the details about this pump. I recently purchased the -B version and am reviewing the specifications to upgrade my build. I know it's not the PWM model—the Swiftech site mentions it produces around 317 GPH, which is roughly 5.2GPM. Does that mean the pump delivers close to 5GPM when operating as a PWM unit?

I also checked the watercooling sticky and the "What can my pump handle" thread on overclock.com. It says I should expect about 2.99 head pressure, and at 1GPM the MCP655-B can manage around 3.25 PSI. Since I don’t have the PWM model, I’m assuming this will be sufficient for a continuous flow of about 5 GPM.

Thank you for taking the time to explain this clearly.
Best regards,

J
JustVv
Junior Member
15
11-27-2023, 02:24 AM
#2
The MCP655-B is usually set to #4 of the five available options, which remains a strong choice for performance in the D5 Vario.
I don’t particularly like PWM pumps; there’s no solid reason to adjust pump speed when you can fully utilize the fans for radiator cooling.
Pumps run almost quietly when functioning properly, so noise shouldn’t be a factor in choosing them.
J
JustVv
11-27-2023, 02:24 AM #2

The MCP655-B is usually set to #4 of the five available options, which remains a strong choice for performance in the D5 Vario.
I don’t particularly like PWM pumps; there’s no solid reason to adjust pump speed when you can fully utilize the fans for radiator cooling.
Pumps run almost quietly when functioning properly, so noise shouldn’t be a factor in choosing them.

S
Stampycat777
Member
66
11-27-2023, 04:24 AM
#3
The flow rate will be reduced by elbows and joints on your loop, resulting in many drops when the loop is active. The high GPM isn't the sole determinant of heat dissipation; some AIOs operate at around 0.5GPM and still function well. For further details, visit www.thermalbench.com and www.extremerigs.com
S
Stampycat777
11-27-2023, 04:24 AM #3

The flow rate will be reduced by elbows and joints on your loop, resulting in many drops when the loop is active. The high GPM isn't the sole determinant of heat dissipation; some AIOs operate at around 0.5GPM and still function well. For further details, visit www.thermalbench.com and www.extremerigs.com

P
pantoufle06
Member
165
11-27-2023, 05:13 AM
#4
The MCP655-B is usually set to #4 of the five available options, which remains a strong choice for performance in the D5 Vario.
I don’t particularly like PWM pumps; there’s no solid reason to adjust pump speed when you can fully utilize the fans for radiator cooling.
Pumps run almost quietly when functioning properly, so noise shouldn’t be a factor in choosing them.
P
pantoufle06
11-27-2023, 05:13 AM #4

The MCP655-B is usually set to #4 of the five available options, which remains a strong choice for performance in the D5 Vario.
I don’t particularly like PWM pumps; there’s no solid reason to adjust pump speed when you can fully utilize the fans for radiator cooling.
Pumps run almost quietly when functioning properly, so noise shouldn’t be a factor in choosing them.

K
kerem_
Member
204
11-27-2023, 06:35 AM
#5
The MCP655-B is usually set to #4 out of 5 available options, which remains a strong choice for performance. I don’t particularly like PWM pumps; there’s no real need to adjust their speed when you can directly utilize the fans for radiator cooling. Pumps run almost silently when functioning properly, so noise shouldn’t influence the decision. Thanks! The pump operates very quietly and I rarely hear it running, appreciated again!
K
kerem_
11-27-2023, 06:35 AM #5

The MCP655-B is usually set to #4 out of 5 available options, which remains a strong choice for performance. I don’t particularly like PWM pumps; there’s no real need to adjust their speed when you can directly utilize the fans for radiator cooling. Pumps run almost silently when functioning properly, so noise shouldn’t influence the decision. Thanks! The pump operates very quietly and I rarely hear it running, appreciated again!

W
WF_Catt
Posting Freak
761
11-28-2023, 02:42 AM
#6
I own three D5 pumps at home and they remain entirely quiet when set to maximum speed. It seems you need to be very close to them to detect any sound during use.
W
WF_Catt
11-28-2023, 02:42 AM #6

I own three D5 pumps at home and they remain entirely quiet when set to maximum speed. It seems you need to be very close to them to detect any sound during use.